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   Summary of Contents for HP procurve series 4100gl

  • Page 1

    4100gl switches www.hp.com/go/hpprocurve...

  • Page 3

    HP Procurve Series 4100GL Switches Software Release G.05.02 or Greater Management and Configuration Guide...

  • Page 4

    Microsoft, Windows, Windows 95, and Microsoft Windows Hewlett-Packard products and replacement parts can be NT are registered trademarks of Microsoft Corporation. obtained from your HP Sales and Service Office or Internet Explorer is a trademark of Microsoft Corporation. authorized dealer.

  • Page 5: Table Of Contents, Selecting A Management Interface, Using The Menu Interface, Selecting A Management Interface

    Advantages of Using the CLI ........1-4 Advantages of Using the HP Web Browser Interface ... . . 1-5 Advantages of Using HP TopTools for Hubs &...

  • Page 6: Table Of Contents, Using The Command Line Interface (cli), Using The Hp Web Browser Interface

    Using a Standalone Web Browser in a PC or UNIX Workstation ..4-4 Using HP TopTools for Hubs & Switches ..... . . 4-5 Tasks for Your First HP Web Browser Interface Session .

  • Page 7: Table Of Contents, Switch Memory And Configuration

    If You Lose a Password ........4-11 Online Help for the HP Web Browser Interface ....4-11 Support/Mgmt URLs Feature .

  • Page 8: Table Of Contents, Configuring Ip Addressing, Configuring Ip Addressing

    Contents Rebooting the Switch ........5-17 Operating Notes .

  • Page 9: Table Of Contents, Time Protocols, Time Protocols

    Contents How IP Addressing Affects Switch Operation ....7-9 DHCP/Bootp Operation ........7-10 Network Preparations for Configuring DHCP/Bootp .

  • Page 10: Table Of Contents

    Contents 9 Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Contents ............9-1 Overview .

  • Page 11: Table Of Contents, Port-based Virtual Lans (vlans) And Gvrp, Port-based Virtual Lans (vlans) And Gvrp

    Contents Overview ..........10-2 SNMP Management Features .

  • Page 12: Table Of Contents

    Contents Menu: Configuring VLAN Parameters ......11-10 To Change VLAN Support Settings ..... . . 11-10 Adding or Editing VLAN Names .

  • Page 13: Table Of Contents, W Rapid Spanning Tree Protocol (rstp), And 802.1d Spanning Tree Protocol (stp)

    Contents IGMP Operating Features ........12-5 Basic Operation .

  • Page 14: Table Of Contents, Hp Procurve Stack Management, Hp Procurve Stack Management

    Which Devices Support Stacking? ......14-4 Components of HP Procurve Stack Management ....14-5 General Stacking Operation .

  • Page 15: Table Of Contents

    CLI: Switch-To-Switch Downloads ..... . . A-10 Using the HP TopTools for Hubs & Switches Utility ... . A-11 Troubleshooting TFTP Downloads .

  • Page 16: Table Of Contents

    Contents Status and Counters Data ........B-3 Menu Access To Status and Counters .

  • Page 17: Table Of Contents

    Contents Browser or Telnet Access Problems ......C-4 Unusual Network Activity ........C-6 General Problems .

  • Page 18

    Menu: Viewing the Switch’s MAC Addresses ....D-3 CLI: Viewing the Port and VLAN MAC Addresses ....D-4 E Daylight Savings Time on HP Procurve Switches Index...

  • Page 19: Getting Started

    Getting Started Contents Getting Started Contents Getting Started Introduction ..........xiv Conventions .

  • Page 20: Command Syntax Statements

    “Related Publications” on page xx. The Product Documentation CD-ROM shipped with the switch includes a copy of this guide. You can also download a copy from the HP Procurve website. (See “Getting Documentation From the Web” on page xxi, below.)

  • Page 21: Command Prompts, Screen Simulations

    Command Prompts In the default configuration, your Series 4100GL switch displays one of the following CLI prompts: HP Procurve Switch 4104# HP Procurve Switch 4108# To simplify recognition, this guide uses HPswitch to represent command prompts for all models. For example: HPswitch# (You can use the hostname command to change the text in the CLI prompt.)

  • Page 22: Related Publications

    LED indications for correct operation and trouble analysis. A PDF version of this guide is also provided on the Product Documentation CD- ROM shipped with the switch. And you can download a copy from the HP Procurve website. (See “Getting Documentation From the Web” on page xxi.) Access Security.

  • Page 23: Getting Documentation From The Web

    Getting Started Getting Documentation From the Web Getting Documentation From the Web Go to the HP Procurve website at http://www.hp.com/go/hpprocurve Click on technical support. Click on manuals. Click on the product for which you want to view or download a manual.

  • Page 24: Sources For More Information

    Interface (hereafter referred to as the “web browser interface”), use the online help available for the web browser interface. For more information on web browser Help options, refer to “Online Help for the HP Web Browser Interface” on page 4-11.

  • Page 25: Need Only A Quick Start, To Set Up And Install The Switch In Your Network

    IP Addressing. If you just want to give the switch an IP address so that it can communicate on your network, or if you are not using VLANs, HP recommends that you use the Switch Setup screen to quickly configure IP addressing.

  • Page 26

    Getting Started Need Only a Quick Start? xxiv...

  • Page 27: Contents

    Advantages of Using the CLI ........1-4 Advantages of Using the HP Web Browser Interface ... . . 1-5...

  • Page 28: Overview, Understanding Management Interfaces, Understanding Management Interfaces

    For information on how to access the web browser interface Help, see “Online Help for the Web Browser Interface” on page 4-11. To use HP TopTools for Hubs & Switches, refer to the HP TopTools User’s Guide and the TopTools online help, which are available electronically with the TopTools software.

  • Page 29: Advantages Of Using The Menu Interface

    Selecting a Management Interface Advantages of Using the Menu Interface Advantages of Using the Menu Interface Figure 1-1. Example of the Console Interface Display Provides quick, easy management access to a menu-driven subset of switch configuration and performance features: • IP addressing •...

  • Page 30: Advantages Of Using The Cli

    Selecting a Management Interface Advantages of Using the CLI Advantages of Using the CLI Operator Level HPswitch> Manager Level HPswitch# Global Configuration Level HPswitch(config)# Context Configuration Levels (port, VLAN) HPswitch(<context>)# Figure 1-2. Command Prompt Examples Provides access to the complete set of the switch configuration, perfor- mance, and diagnostic features.

  • Page 31: Advantages Of Using The Hp Web Browser Interface

    Advantages of Using the HP Web Browser Interface Advantages of Using the HP Web Browser Interface Figure 1-3. Example of the HP Web Browser Interface Easy access to the switch from anywhere on the network Familiar browser interface--locations of window objects consistent...

  • Page 32: Advantages Of Using Hp Toptools For Hubs & Switches

    Advantages of Using HP TopTools for Hubs & Switches You can operate HP TopTools from a PC on the network to monitor traffic, manage your hubs and switches, and proactively recommend network changes to increase network uptime and optimize performance. Easy to install and use, HP TopTools for Hubs &...

  • Page 33

    Enables you to proactively manage your network by using the Alert Log to quickly identify problems and suggest solutions, saving valu- able time. • Notifies you when HP hubs use “self-healing” features to fix or limit common network problems. • Provides a list of discovered devices, with device type, connectivity status, the number of new or open alerts for each device, and the type of management for each device.

  • Page 34

    Selecting a Management Interface Advantages of Using HP TopTools for Hubs & Switches...

  • Page 35

    Using the Menu Interface Contents Overview ........... . . 2-2 Starting and Ending a Menu Session .

  • Page 36

    Reboot the switch For a detailed list of menu features, see the "Menu Features List" on page 2-14. Privilege Levels and Password Security. HP strongly recommends that you configure a Manager password to help prevent unauthorized access to your network. A Manager password grants full read-write access to the switch.

  • Page 37: Starting And Ending A Menu Session

    Using the Menu Interface Starting and Ending a Menu Session N o t e If the switch has neither a Manager nor an Operator password, anyone having access to the console interface can operate the console with full manager privileges. Also, if you configure only an Operator password, entering the Operator password enables full manager privileges.

  • Page 38: How To Start A Menu Interface Session

    A PC terminal emulator or terminal • Telnet (You can also use the stack Commander if the switch is a stack member. See Chapter 14, “HP Procurve Stack Management”). Do one of the following: • If you are using Telnet, go to step 3.

  • Page 39: How To End A Menu Session And Exit From The Console:

    Using the Menu Interface Starting and Ending a Menu Session Figure 2-1. The Main Menu with Manager Privileges For a description of Main Menu features, see “Main Menu Features” on page 2-7. N o t e To configure the switch to start with the menu interface instead of the CLI, go to the Manager level prompt in the CLI, enter the command, and in the setup...

  • Page 40

    Using the Menu Interface Starting and Ending a Menu Session Asterisk indicates a configuration change that requires a reboot to activate. Figure 2-2. An Asterisk Indicates a Configuration Change Requiring a Reboot In the current session, if you have not made configuration changes that require a switch reboot to activate, return to the Main Menu and press (zero) to log out.

  • Page 41: Main Menu Features

    Using the Menu Interface Main Menu Features Main Menu Features Figure 2-3. The Main Menu View with Manager Privileges The Main Menu gives you access to these Menu interface features: Status and Counters: Provides access to display screens showing switch information, port status and counters, port and VLAN address tables, and spanning tree information.

  • Page 42

    Stacking: Enables you to use a single IP address and standard network cabling to manage a group of up to 16 switches in the same subnet (broadcast domain). See Chapter 14, “HP Procurve Stack Management”. Logout: Closes the Menu interface and console session, and disconnects Telnet access to the switch.

  • Page 43: Screen Structure And Navigation

    Using the Menu Interface Screen Structure and Navigation Screen Structure and Navigation Menu interface screens include these three elements: Parameter fields and/or read-only information such as statistics Navigation and configuration actions, such as Save, Edit, and Cancel Help line to describe navigation options, individual parameters, and read- only data For example, in the following System Information screen: Screen title –...

  • Page 44

    Using the Menu Interface Screen Structure and Navigation Table 2-1. How To Navigate in the Menu Interface Task: Actions: Execute an action Use either of the following methods: from the “Actions –>” • Use the arrow keys ( [<] ,or [>] ) to highlight the action you want list at the bottom of to execute, then press [Enter] .

  • Page 45

    Using the Menu Interface Screen Structure and Navigation To get Help on individual parameter descriptions. In most screens there is a Help option in the Actions line. Whenever any of the items in the Actions line is highlighted, press , and a separate help screen is displayed. For example: Pressing or highlighting Help and...

  • Page 46: Rebooting The Switch

    Using the Menu Interface Rebooting the Switch Rebooting the Switch Rebooting the switch from the menu interface Terminates all current sessions and performs a reset of the operating system Activates any menu interface configuration changes that require a reboot Resets statistical counters to zero (Note that statistical counters can be reset to zero without rebooting the switch.) To Reboot the switch, use the Reboot Switch option in the Main Menu.

  • Page 47

    Using the Menu Interface Rebooting the Switch Rebooting To Activate Configuration Changes. Configuration changes for most parameters in the menu interface become effective as soon as you save them. However, you must reboot the switch in order to implement a change in the .

  • Page 48: Menu Features List

    Using the Menu Interface Menu Features List Menu Features List Status and Counters • General System Information • Switch Management Address Information • Port Status • Port Counters • Address Table • Port Address Table • Spanning Tree Information Switch Configuration •...

  • Page 49: Where To Go From Here

    To use the Run Setup option Refer to the Installation and Getting Started Guide shipped with the switch. To use the HP Procurve Stack Manager Chapter 14, “HP Procurve Stack Management” To view and monitor switch status and Appendix B, “Monitoring and Analyzing Switch counters Operation”...

  • Page 50

    Using the Menu Interface Where To Go From Here 2-16...

  • Page 51

    Using the Command Line Interface (CLI) Contents Overview ........... . . 3-2 Accessing the CLI .

  • Page 52

    Using the Command Line Interface (CLI) Overview Overview The CLI is a text-based command interface for configuring and monitoring the switch. The CLI gives you access to the switch’s full set of commands while providing the same password protection that is used in the web browser interface and the menu interface.

  • Page 53: Privilege Levels At Logon

    Using the Command Line Interface (CLI) Using the CLI Startup Config file in non-volatile memory. If you reboot the switch without first using write memory, all changes made since the last reboot or write memory (whichever is later) will be lost. For more on switch memory and saving configuration changes, see Chapter 5, “Switch Memory and Configuration”.

  • Page 54: Privilege Level Operation, Operator Privileges, Operator Privileges

    Using the CLI C a u t i o n HP strongly recommends that you configure a Manager password. If a Man- ager password is not configured, then the Manager level is not password- protected, and anyone having in-band or out-of-band access to the switch may be able to reach the Manager level and compromise switch and network security.

  • Page 55: Manager Privileges

    Using the Command Line Interface (CLI) Using the CLI Manager Privileges Manager privileges give you three additional levels of access: Manager, Global Configuration, and Context Configuration. (See figure .) A "#" character delimits any Manager prompt. For example: (Example of the Manager prompt.) HPswitch#_ Manager level: Provides all Operator level privileges plus the ability to perform system-level actions that do not require saving changes to the...

  • Page 56

    Using the Command Line Interface (CLI) Using the CLI Changing Interfaces. If you change from the CLI to the menu interface, or the reverse, you will remain at the same privilege level. For example, entering the menu command from the Operator level of the CLI takes you to the Operator privilege level in the menu interface.

  • Page 57: How To Move Between Levels

    Using the Command Line Interface (CLI) Using the CLI How To Move Between Levels Change in Levels Example of Prompt , Command, and Result Operator level HPswitch> enable Password:_ Manager level enable After you enter , the Password prompt appears. After you enter the Manager password, the system prompt appears with the symbol: HPswitch#_...

  • Page 58: Listing Commands And Command Options, Listing Commands Available At Any Privilege Level

    Using the Command Line Interface (CLI) Using the CLI for VLAN 1 and later use the CLI to configure a different IP address of "Y" for VLAN 1, then "Y" replaces "X" as the IP address for VLAN 1 in the running- config file.

  • Page 59

    Using the Command Line Interface (CLI) Using the CLI Typing ? at the Manager level produces this listing: When - - MORE - - appears, use the Space [Return] bar or to list additional commands. Figure 3-4. Example of the Manager-Level Command Listing When - - MORE - - appears, there are more commands in the listing.

  • Page 60: Command Option Displays

    Using the Command Line Interface (CLI) Using the CLI As mentioned above, if you type part of a command word and press , the [T ab] CLI completes the current word (if you have typed enough of the word for the CLI to distinguish it from other possibilities), including hyphenated exten- sions.

  • Page 61: Displaying Cli "help", Displaying Cli "help, Displaying Cli "help

    Using the Command Line Interface (CLI) Using the CLI Listing Command Options. You can use the CLI to remind you of the options available for a command by entering command keywords followed by . For example, suppose you want to see the command options for configuring port C5: This example displays the command options for configuring port C5 on the switch.

  • Page 62

    Using the Command Line Interface (CLI) Using the CLI Figure 3-6. Example of Context-Sensitive Command-List Help Displaying Help for an Individual Command. You can display Help for any command that is available at the current context level by entering enough of the command string to identify the command, along with help.

  • Page 63: Configuration Commands And The Context Configuration Modes

    Using the Command Line Interface (CLI) Using the CLI Figure 3-8. Example of Help for a Specific Instance of a Command Note that trying to list the help for an individual command from a privilege level that does not include that command results in an error message. For example, trying to list the help for the interface command while at the global configuration level produces this result: HPswitch# interface help...

  • Page 64

    Using the Command Line Interface (CLI) Using the CLI Lists the commands you HPswitch(eth-C5-C8)# ? can use in the port or static trunk context, plus the HPswitch(eth-C5-C8)# ? Manager, Operator, and context commands you can execute at this level. In the port context, the first block of commands in the "?" listing show the context-specific commands that will affect only ports C3-C6.

  • Page 65

    Using the Command Line Interface (CLI) Using the CLI VLAN Context . Includes VLAN-specific commands that apply only to the selected VLAN, plus Manager and Operator commands. The prompt for this mode includes the VLAN ID of the selected VLAN. For example, if you had already configured a VLAN with an ID of 100 in the switch: Command executed at configura- HPswitch(config)# vlan 100...

  • Page 66: Cli Control And Editing

    Using the Command Line Interface (CLI) CLI Control and Editing CLI Control and Editing Keystrokes Function [Ctrl] Jumps to the first character of the command line. or [<] Moves the cursor back one character. [Ctrl] [Ctrl] Terminates a task and displays the command prompt. [Ctrl] Deletes the character at the cursor.

  • Page 67

    Using a Standalone Web Browser in a PC or UNIX Workstation ..4-4 Using HP TopTools for Hubs & Switches ..... . . 4-5 Tasks for Your First HP Web Browser Interface Session .

  • Page 68

    Using the HP Web Browser Interface Overview Overview The HP web browser interface built into the switch lets you easily access the switch from a browser-based PC on your network. This lets you do the following: Optimize your network uptime by using the Alert Log and other diagnostic...

  • Page 69: General Features

    Using the HP Web Browser Interface General Features General Features The Switch 4108GL include these web browser interface features: Switch Configuration: • Ports • VLANs and Primary VLAN • Fault detection • Port monitoring (mirroring) • System information • Enable/Disable Multicast Filtering (IGMP) and Spanning Tree •...

  • Page 70: Starting An Hp Web Browser Interface Session With The Switch

    • Directly connected to your network • Connected through remote access to your network Using a management station running HP TopTools for Hubs & Switches on your network Using a Standalone Web Browser in a PC or UNIX Workstation This procedure assumes that you have a supported web browser installed on your PC or workstation, and that an IP address has been configured on the switch.

  • Page 71: Using Hp Toptools For Hubs & Switches

    Using HP TopTools for Hubs & Switches HP TopTools for Hubs & Switches is designed for installation on a network management workstation. For this reason, the HP TopTools system require- ments are different from the system requirements for accessing the switch’s web browser interface from a non-management PC or workstation.

  • Page 72

    Using the HP Web Browser Interface Starting an HP Web Browser Interface Session with the Switch The web browser interface automatically starts with the Status Overview window displayed for the selected device, as shown in figure 4-1. N o t e If the Registration window appears, click on the Status tab.

  • Page 73: Tasks For Your First Hp Web Browser Interface Session, Viewing The "first Time Install" Window

    Using the HP Web Browser Interface Tasks for Your First HP Web Browser Interface Session Tasks for Your First HP Web Browser Interface Session The first time you access the web browser interface, there are three tasks that you should perform: Review the “First Time Install”...

  • Page 74: Creating Usernames And Passwords In The Browser Interface

    Using the HP Web Browser Interface Tasks for Your First HP Web Browser Interface Session This window is the launching point for the basic configuration you need to perform to set web browser interface passwords to maintain security and Fault Detection policy, which determines the types of messages that will be displayed in the Alert Log.

  • Page 75

    Using the HP Web Browser Interface Tasks for Your First HP Web Browser Interface Session Figure 4-3. The Device Passwords Window To set the passwords: Access the Device Passwords screen by one of the following methods: • If the Alert Log includes a “First Time Install” event entry, double click on this event, then, in the resulting display, click on the secure access to the device link.

  • Page 76: Using The Passwords, Using The User Names, Using The User Names

    Using the HP Web Browser Interface Tasks for Your First HP Web Browser Interface Session N o t e Passwords you assign in the web browser interface will overwrite previous passwords assigned in either the web browser interface, the Command Prompt, or the switch console.

  • Page 77: If You Lose A Password, Online Help For The Hp Web Browser Interface

    Context-sensitive help is provided for the screen you are on. N o t e If you do not have HP TopTools for Hubs and Switches installed on your network and do not have an active connection to the World Wide Web, then Online help for the web browser interface will not be available.

  • Page 78: Support/mgmt Urls Feature

    - the URL of the network Management server or other source of the online help files for this web browser inter- face. (The default accesses Help on HP’s World Wide Web site.) Figure 4-6. The Default Support/Mgmt URLs Window 4-12...

  • Page 79: Support Url, Help And The Management Server Url, Help And The Management Server Url

    4-6. The switch is shipped with the URL set to retrieve online Help from the HP World Wide Web site. However, if HP TopTools for Hubs & Switches is installed on a management station on your network and discovers the switch, the Management Server URL is automatically changed to retrieve the Help from your TopTools management station.

  • Page 80

    Support/Mgmt URLs Feature If you have World Wide Web access from your PC or workstation, and do not have HP TopTools installed on your network, enter the following URL in the Management Server URL field shown in figure 4-7 on page 4-14: http://www.hp.com/rnd/device_help...

  • Page 81: Status Reporting Features, The Overview Window, The Overview Window

    Using the HP Web Browser Interface Status Reporting Features Status Reporting Features Browser elements covered in this section include: The Overview window (below) Port utilization and status (page 4-16) The Alert log (page 4-19) The Status bar (page 4-22) The Overview Window The Overview Window is the home screen for any entry into the web browser interface.The following figure identifies the various parts of the screen.

  • Page 82: The Port Utilization And Status Displays, Port Utilization, Port Utilization

    Using the HP Web Browser Interface Status Reporting Features The Port Utilization and Status Displays The Port Utilization and Status displays show an overview of the status of the switch and the amount of network activity on each port. The following figure shows a sample reading of the Port Utilization and Port Status.

  • Page 83

    Using the HP Web Browser Interface Status Reporting Features Maximum Activity Indicator: As the bars in the graph area change height to reflect the level of network activity on the corresponding port, they leave an outline to identify the maximum activity level that has been observed on the port.

  • Page 84: Port Status

    Using the HP Web Browser Interface Status Reporting Features Port Status Port Status Indicators Legend Figure 4-12. The Port Status Indicators and Legend The Port Status indicators show a symbol for each port that indicates the general status of the port. There are four possible statuses: Port Connected –...

  • Page 85: The Alert Log, Sorting The Alert Log Entries, Sorting The Alert Log Entries

    Using the HP Web Browser Interface Status Reporting Features The Alert Log The web browser interface Alert Log, shown in the lower half of the screen, shows a list of network occurrences, or alerts, that were detected by the switch. Typical alerts are Broadcast Storm, indicating an excessive number of broadcasts received on a port, and Problem Cable, indicating a faulty cable.

  • Page 86: Alert Types

    Using the HP Web Browser Interface Status Reporting Features Alert Types The following table lists the types of alerts that can be generated. Table 4-1. Alert Strings and Descriptions Alert String Alert Description First Time Install Important installation information for your switch.

  • Page 87: Viewing Detail Views Of Alert Log Entries

    Using the HP Web Browser Interface Status Reporting Features N o t e When troubleshooting the sources of alerts, it may be helpful to check the switch’s Port Status and Port Counter windows and the Event Log in the console interface.

  • Page 88: The Status Bar

    Using the HP Web Browser Interface Status Reporting Features The Status Bar The Status Bar is displayed in the upper left corner of the web browser interface screen. Figure 4-15 shows an expanded view of the status bar. Most Critical Alert Description...

  • Page 89: Setting Fault Detection Policy

    Using the HP Web Browser Interface Status Reporting Features Product Name. The product name of the switch to which you are connected in the current web browser interface session. Setting Fault Detection Policy One of the powerful features in the web browser interface is the Fault Detection facility.

  • Page 90

    Never. Disables the Alert Log and transmission of alerts (traps) to the management server (in cases where a network management tool such as HP TopTools for Hubs & Switches is in use). Use this option when you don’t want to use the Alert Log.

  • Page 91

    Switch Memory and Configuration Contents Contents ............5-1 Overview .

  • Page 92

    Switch Memory and Configuration Overview Overview This chapter describes: How switch memory manages configuration changes How the CLI implements configuration changes How the menu interface and web browser interface implement configu- ration changes How the switch provides OS (operating system) options through primary/ secondary flash image options How to use the switch’s primary and secondary flash options, including displaying flash information, booting or restarting the switch, and other...

  • Page 93

    Switch Memory and Configuration Overview of Configuration File Management Running Config File: Exists in volatile memory and controls switch operation. If no configuration changes have been made in the CLI since the switch was last booted, the running-config file is identical to the startup-config file.

  • Page 94: Using The Cli To Implement Configuration Changes

    Switch Memory and Configuration Using the CLI To Implement Configuration Changes "permanent". When you are satisfied that the change is satisfactory, you can make it permanent by executing the command. For example, write memory suppose you use the following command to disable port 5: HPswitch(config)# interface ethernet 5 disable The above command disables port 5 in the running-config file, but not in the startup-config file.

  • Page 95

    Switch Memory and Configuration Using the CLI To Implement Configuration Changes Access to the full set of switch configuration features The option of testing configuration changes before making them perma- nent How To Use the CLI To View the Current Configuration Files. Use show commands to view the configuration for individual features, such as port status or Spanning Tree Protocol.

  • Page 96

    Switch Memory and Configuration Using the CLI To Implement Configuration Changes For example, the default port mode setting is . Suppose that your network auto uses Cat 3 wiring and you want to connect the switch to another autosensing device capable of 100 Mbps operation. Because 100 Mbps over Cat 3 wiring can introduce transmission problems, the recommended port mode is auto-10 which allows the port to negotiate full- or half-duplex, but restricts speed to...

  • Page 97

    Switch Memory and Configuration Using the CLI To Implement Configuration Changes Disables port 1 in the running configuration, which causes port 1 to block all traffic. HPswitch(config)# interface e 1 disable HPswitch(config)# boot Device will be rebooted, do you want to continue [y/n]? y Press to continue the rebooting process.

  • Page 98: Configuration Changes

    Switch Memory and Configuration Using the Menu and Web Browser Interfaces To Implement Configuration Changes How To Reset the startup-config and running-config Files to the Factory-Default Configuration. This command reboots the switch, replacing the contents of the current startup-config and running-config files with the factory-default startup configuration.

  • Page 99: Using The Menu Interface To Implement Configuration Changes

    Switch Memory and Configuration Using the Menu and Web Browser Interfaces To Implement Configuration Changes Using the Menu Interface To Implement Configuration Changes You can use the menu interface to simultaneously save and implement a subset of switch configuration changes without having to reboot the switch. That is, when you save a configuration change in the menu interface, you simulta- neously change both the running-config file and the startup-config file.

  • Page 100: Rebooting From The Menu Interface

    Switch Memory and Configuration Using the Menu and Web Browser Interfaces To Implement Configuration Changes N o t e If you reconfigure a parameter in the CLI and then go to the menu interface without executing a write memory command, those changes are stored only in the running configuration (even if you execute a Save operation in the menu interface).

  • Page 101: Changes

    Switch Memory and Configuration Using the Menu and Web Browser Interfaces To Implement Configuration Changes Rebooting To Activate Configuration Changes. Configuration changes for most parameters become effective as soon as you save them. However, you must reboot the switch in order to implement a change in the Maximum parameter VLANs to support...

  • Page 102: Using Primary And Secondary Flash Image Options, Displaying The Current Flash Image Data

    Switch Memory and Configuration Using Primary and Secondary Flash Image Options N o t e If you reconfigure a parameter in the CLI and then go to the browser interface without executing a write memory command, those changes will be saved to the startup-config file if you click on in the web [Apply Changes]...

  • Page 103

    Switch Memory and Configuration Using Primary and Secondary Flash Image Options Identify which OS version is currently running Viewing the Currently Active Flash Image Version. This command identifies the software version on which the switch is currently running, and whether the active version was booted from the primary or secondary flash image.

  • Page 104: Os Downloads

    Switch Memory and Configuration Using Primary and Secondary Flash Image Options Thus, by using show version, then rebooting the switch from the opposite flash image and using show version again, you can determine the version of the OS image in both flash sources. For example: 1.

  • Page 105: Local Os Replacement And Removal

    OS file. The process automatically overwrites the previous file with the new file. If you want to remove an unwanted OS version from flash, HP recommends that you do so by overwriting it with the same OS version that you are using to operate the switch, or with another acceptable OS version.

  • Page 106

    Switch Memory and Configuration Using Primary and Secondary Flash Image Options where: destination flash = primary or secondary: For example, to copy the image in secondary flash to primary flash: Verify that there is a valid flash image in the secondary flash location. The following figure indicates that an OS image is present in secondary flash.

  • Page 107

    Switch Memory and Configuration Using Primary and Secondary Flash Image Options The prompt shows which flash location will be erased. Figure 5-11. Example of Erase Flash Prompt Type y at the prompt to complete the flash erase. Use show flash to verify erasure of the selected OS flash image The "...

  • Page 108

    Switch Memory and Configuration Using Primary and Secondary Flash Image Options Booting from Primary Flash. This command always boots the switch from primary flash, and executes the complete set of subsystem self-tests. Syntax: boot For example, to boot the switch from primary flash with pending configuration changes in the running-config file: Figure 5-13.

  • Page 109: Operating Notes

    Switch Memory and Configuration Using Primary and Secondary Flash Image Options Booting from the Current OS Version. Reload reboots the switch from the flash image on which the switch is currently running, and saves to the startup-config file any configuration changes currently in the running-config file.

  • Page 110

    Switch Memory and Configuration Using Primary and Secondary Flash Image Options while using a version "Y" of the OS, and then reboot the switch with an earlier OS version "X" that does not include all of the features found in "Y", the OS simply ignores the parameters for any features that it does not support.

  • Page 111

    Interface Access, System Information, and Friendly Port Names Contents Contents ............6-1 Overview .

  • Page 112

    Chapter 2, “Using the Menu Interface” Chapter 3, “Using the Command Line Interface (CLI)” Chapter 4, Using the HP Web Browser Interface” Why Configure Interface Access and System Information? The inter- face access features in the switch operate properly by default. However, you can modify or disable access features to suit your particular needs.

  • Page 113: Inbound Telnet

    Interface Access, System Information, and Friendly Port Names Interface Access: Console/Serial Link, Web, and Inbound Telnet Interface Access: Console/Serial Link, Web, and Inbound Telnet Interface Access Features Feature Default Menu Inactivity Time 0 Minutes page 6-4 page 6-6 — (disabled) Inbound Telnet Access Enabled page 6-4...

  • Page 114: Menu: Modifying The Interface Access

    Interface Access, System Information, and Friendly Port Names Interface Access: Console/Serial Link, Web, and Inbound Telnet Menu: Modifying the Interface Access The menu interface enables you to modify these parameters: Inactivity Timeout Inbound Telnet Enabled Web Agent Enabled To Access the Interface Access Parameters: From the Main Menu, Select...

  • Page 115: Cli: Modifying The Interface Access

    Interface Access, System Information, and Friendly Port Names Interface Access: Console/Serial Link, Web, and Inbound Telnet CLI: Modifying the Interface Access Interface Access Commands Used in This Section show console below [no] telnet-server below [no] web-management page 6-6 console page 6-6 Listing the Current Console/Serial Link Configuration.

  • Page 116

    Interface Access, System Information, and Friendly Port Names Interface Access: Console/Serial Link, Web, and Inbound Telnet Outbound Telnet to Another Device. This feature operates indepen- dently of the telnet-server status and enables you to Telnet to another device that has an IP address. Syntax: telnet <...

  • Page 117

    Interface Access, System Information, and Friendly Port Names Interface Access: Console/Serial Link, Web, and Inbound Telnet VT100 operation 19,200 baud No flow control 10-minute inactivity time Critical log events you would use the following command sequence: The switch implements the Event Log change immediately. The switch implements write memory reload the other console changes after executing...

  • Page 118: Sessions

    Interface Access, System Information, and Friendly Port Names Denying Interface Access by Terminating Remote Management Sessions Denying Interface Access by Terminating Remote Management Sessions The switch supports up to four management sessions. You can use show ip ssh to list the current management sessions, and kill to terminate a currently running remote session.

  • Page 119: System Information

    System Name: Using a unique name helps you to identify individual devices in stacking environments and where you are using an SNMP network manage- ment tool such as HP TopTools for Hubs & Switches. System Contact and Location: This information is helpful for identifying the person administratively responsible for the switch and for identifying the locations of individual switches.

  • Page 120: Menu: Viewing And Configuring System Information

    Daylight Time Rule: Specifies the daylight savings time rule to apply for your location. The default is None. (For more on this topic, see appendix D, “Daylight Savings Time on HP ProCurve Switches.) Time: Used in the CLI to specify the time of day, the date, and other system parameters.

  • Page 121: Cli: Viewing And Configuring System Information

    Interface Access, System Information, and Friendly Port Names System Information Refer to the online help provided with this screen for further information on configuration options for these features. When you have finished making changes to the above parameters, press (for Save) and return to the Main Menu. , then press [Enter] CLI: Viewing and Configuring System Information...

  • Page 122

    Interface Access, System Information, and Friendly Port Names System Information Configure a System Name, Contact, and Location for the Switch. To help distinguish one switch from another, configure a plain-language identity for the switch. Syntax: hostname <name-string> snmp-server [contact <system contact>] [location <system location>] Both fields allow up to 48 characters.

  • Page 123

    Interface Access, System Information, and Friendly Port Names System Information Reconfigure the Age Time for Learned MAC Addresses. This com- mand corresponds to the MAC Age Interval in the menu interface, and is expressed in seconds. Syntax: mac-age-time <10 . . 1000000> (seconds) For example, to configure the age time to seven minutes: HPswitch(config)# mac-age-time 420 Configure the Time Zone and Daylight Time Rule.

  • Page 124: Web: Configuring System Parameters

    Interface Access, System Information, and Friendly Port Names System Information Web: Configuring System Parameters In the web browser interface, you can enter the following system information: System Name System Location System Contact For access to the MAC Age Interval and the Time parameters, use the menu interface or the CLI.

  • Page 125: Using Friendly (optional) Port Names, Configuring And Operating Rules For Friendly Port Names

    Interface Access, System Information, and Friendly Port Names Using Friendly (Optional) Port Names Using Friendly (Optional) Port Names Feature Default Menu Configure Friendly Port Names Standard Port page 16 Numbering Display Friendly Port Names page 18 This feature enables you to assign alphanumeric port names of your choosing to augment automatically assigned numeric port names.

  • Page 126: Configuring Friendly Port Names

    Interface Access, System Information, and Friendly Port Names Using Friendly (Optional) Port Names To retain friendly port names across reboots, you must save the current running-configuration to the startup-config file after entering the friendly port names. (In the CLI, use the write memory command.) Configuring Friendly Port Names Syntax:interface [e] <port-list>...

  • Page 127

    Interface Access, System Information, and Friendly Port Names Using Friendly (Optional) Port Names Configuring the Same Name for Multiple Ports. Suppose that you want to use ports A5 through A8 as a trunked link to a server used by a drafting group.

  • Page 128: Displaying Friendly Port Names With Other Port Data

    Interface Access, System Information, and Friendly Port Names Using Friendly (Optional) Port Names Displaying Friendly Port Names with Other Port Data You can display friendly port name data in the following combinations: show name: Displays a listing of port numbers with their corresponding friendly port names and also quickly shows you which ports do not have friendly name assignments.

  • Page 129

    Interface Access, System Information, and Friendly Port Names Using Friendly (Optional) Port Names Port Without a "Friendly" Name Friendly port names assigned in previous examples. Figure 6-12. Example of Friendly Port Name Data for Specific Ports on the Switch Including Friendly Port Names in Per-Port Statistics Listings. A friendly port name configured to a port is automatically included when you display the port’s statistics output.

  • Page 130

    Interface Access, System Information, and Friendly Port Names Using Friendly (Optional) Port Names For a given port, if a friendly port name does not exist in the running-config file, the Name line in the above command output appears as: Name not assigned To Search the Configuration for Ports with Friendly Port Names.

  • Page 131

    Configuring IP Addressing Contents Overview ........... . . 7-2 IP Configuration .

  • Page 132

    Configuring IP Addressing Overview Overview You can configure IP addressing through all of the switch’s interfaces. You can also easily edit a switch configuration file to allow downloading the file to multiple Series 4100GL switches without overwriting each switch’s unique gateway and VLAN 1 IP addressing.

  • Page 133: Ip Configuration

    Configuring IP Addressing IP Configuration IP Configuration IP Configuration Features Feature Default Menu IP Address and Subnet Mask DHCP/Bootp page 7-5 page 7-7 page 7-9 Default Gateway Address none page 7-5 page 7-7 page 7-9 Packet Time-To-Live (TTL) 64 seconds page 7-5 page 7-7 Time Server (Timep)

  • Page 134: Just Want A Quick Start With Ip Addressing?

    If you just want to give the switch an IP address so that it can communicate on your network, or if you are not using VLANs, HP recommends that you use the Switch Setup screen to quickly configure IP addressing. To do so, do one of the following: Enter setup at the CLI Manager level prompt.

  • Page 135: Ip Addressing In A Stacking Environment

    IP Addressing in a Stacking Environment If you are installing the switch into an HP Procurve stack management environment, entering an IP address may not be required. See chapter 14, ‘HP Procurve Stack Management’ for more information. Menu: Configuring IP Address, Gateway, and Time-To-...

  • Page 136

    Configuring IP Addressing IP Configuration For descriptions of these parameters, see the online Help for this screen. Before using the DHCP/ Bootp option, refer to “DHCP/Bootp Operation” on page 7-10. Figure 5-1. Example of the IP Service Configuration Screen without Multiple VLANs Configured Press (for Edit).

  • Page 137: Cli: Configuring Ip Address, Gateway, And Time-to-live (ttl)

    Configuring IP Addressing IP Configuration CLI: Configuring IP Address, Gateway, and Time-To- Live (TTL) IP Commands Used in This Section show ip page 7-7 vlan <vlan-id> ip page 7-8 address ip default-gateway page 7-8 ip ttl page 7-9 Viewing the Current IP Configuration. The following command displays the IP addressing for each VLAN configured in the switch.

  • Page 138

    Configuring IP Addressing IP Configuration A Switch 4108GL with IP Addressing and VLANs Configured Figure 5-3. Example of Show IP Listing with Non-Default IP Addressing Configured Configure an IP Address and Subnet Mask. The following command includes both the IP address and the subnet mask. You must either include the ID of the VLAN for which you are configuring IP addressing or go to the context configuration level for that VLAN.

  • Page 139: Web: Configuring Ip Addressing, How Ip Addressing Affects Switch Operation

    Console RS-232 port. You can use direct-connect console access to take advantage of features that do not depend on IP addressing. However, to realize the full performance capabilities HP proactive networking offers through the switch, configure the switch with an IP address and subnet mask compatible with your network.

  • Page 140: Dhcp/bootp Operation

    Additional Features Available with an IP Address and Subnet Mask • Direct-connect access to the CLI and the menu interface. • HP web browser interface access, with configuration, security, and diagnostic tools, plus the Alert Log for • Stacking Candidate or Stack Member discovering problems detected in the switch along with •...

  • Page 141

    Configuring IP Addressing IP Configuration DHCP/Bootp requests are automatically broadcast on the local network. (The switch sends one type of request to which either a DHCP or Bootp server can respond.) When a DHCP or Bootp server receives the request, it replies with a previously configured IP address and subnet mask for the switch.

  • Page 142

    Configuring IP Addressing IP Configuration Bootp Operation. When a Bootp server receives a request it searches its Bootp database for a record entry that matches the MAC address in the Bootp request from the switch. If a match is found, the configuration data in the associated database record is returned to the switch.

  • Page 143: Network Preparations For Configuring Dhcp/bootp

    Configuring IP Addressing IP Configuration is the IP address of the default gateway. TFTP server address (source of final configuration file) T144 is the vendor-specific “tag” identifying the configuration file to download. is a required entry that specifies the Bootp report format. For the Series 4100GL switches, set this parameter to rfc1048.

  • Page 144: File Downloads

    Configuring IP Addressing IP Preserve: Retaining VLAN-1 IP Addressing Across Configuration File Downloads IP Preserve: Retaining VLAN-1 IP Addressing Across Configuration File Downloads IP Preserve enables you to copy a configuration file to multiple Series 4100GL switches while retaining the individual IP address and subnet mask on VLAN 1 in each switch, and the Gateway IP address assigned to the switch.

  • Page 145

    Configuring IP Addressing IP Preserve: Retaining VLAN-1 IP Addressing Across Configuration File Downloads Entering "ip preserve" in the last line of a configuration file implements IP Preserve when the file is downloaded to the switch and the switch reboots. Figure 7-4. Example of Implementing IP Preserve in a Switch 4108GL Configuration File For example, consider Figure 7-5: DHCP TFTP...

  • Page 146

    Configuring IP Addressing IP Preserve: Retaining VLAN-1 IP Addressing Across Configuration File Downloads Using figure 7-5, above, switches 1 - 3 ignore these entries because the file implements IP Preserve and their current IP addressing was not acquired through DHCP/Bootp. Switch 4 ignores IP Preserve and implements the DHCP/Bootp addressing and IP Gateway specified in this file (because its last IP addressing was acquired...

  • Page 147

    Configuring IP Addressing IP Preserve: Retaining VLAN-1 IP Addressing Across Configuration File Downloads Because switch 4 (figure 7-5) received its most recent IP addressing from a DHCP/Bootp server, the switch ignores the ip preserve command and implements the IP addressing included in this file.

  • Page 148: Globally Assigned Ip Network Addresses

    Configuring IP Addressing Globally Assigned IP Network Addresses Globally Assigned IP Network Addresses If you intend to connect your network to other networks that use globally administered IP addresses, Hewlett-Packard strongly recommends that you use IP addresses that have a network address assigned to you. There is a formal process for assigning unique IP addresses to networks worldwide.

  • Page 149

    Time Protocols Contents Overview ........... . . 8-2 TimeP Time Synchronization .

  • Page 150

    Time Protocols Overview Overview This chapter describes: SNTP Time Protocol Operation Timep Time Protocol Operation Using time synchronization ensures a uniform time among interoperating devices. This helps you to manage and troubleshoot switch operation by attaching meaningful time data to event and error messages. The switch offers TimeP and SNTP (Simple Network Time Protocol) and a timesync command for changing the time protocol selection (or turning off time protocol operation).

  • Page 151: Turning Off Time Protocol Operation, Overview: Selecting A Time Synchronization Protocol Or Turning Off

    Time Protocols Overview: Selecting a Time Synchronization Protocol or Turning Off Time Protocol Operation ular server, it ignores time broadcasts from other SNTP servers unless the configurable expires three consecutive times without Poll Interval an update received from the first-detected server. N o t e To use Broadcast mode, the switch and the SNTP server must be in the same subnet.

  • Page 152: Disabling Time Synchronization, Sntp: Viewing, Selecting, And Configuring

    Time Protocols SNTP: Viewing, Selecting, and Configuring Note that simply selecting a time synchronization protocol does not enable that protocol on the switch unless you also enable the protocol itself (step 2, above). For example, in the factory-default configuration, TimeP is the selected time synchronization method.

  • Page 153: Menu: Viewing And Configuring Sntp

    Time Protocols SNTP: Viewing, Selecting, and Configuring Table 8-1.SNTP Parameters SNTP Parameter Operation Time Sync Used to select either SNTP, TIMEP, or None as the time synchronization method. Method SNTP Mode Disabled The Default. SNTP does not operate, even if specified by the Menu interface Time Sync Method parameter or the CLI timesync command.

  • Page 154

    Time Protocols SNTP: Viewing, Selecting, and Configuring Time Protocol Selection Parameter – TIMEP – SNTP – None Figure 8-1. The System Information Screen (Default Values) Press (for Edit ). The cursor moves to the System Name field. Use [v] to move the cursor to the field.

  • Page 155

    SNTP server version running on the device you specified in the preceding step (step ii). If you are unsure which version to use, HP recommends leaving this value at the default setting of and testing SNTP operation to determine whether any change is necessary.

  • Page 156: Cli: Viewing And Configuring Sntp

    Time Protocols SNTP: Viewing, Selecting, and Configuring CLI: Viewing and Configuring SNTP CLI Commands Described in this Section show sntp page 8-8 [no] timesync pages 8-9 and ff., 8-12 sntp broadcast page 8-9 sntp unicast page 8-10 sntp server pages 8-10 and ff. Protocol Version page 8-12 poll-interval...

  • Page 157: Configuring (enabling Or Disabling) The Sntp Mode

    Time Protocols SNTP: Viewing, Selecting, and Configuring Even though, in this example, TimeP is the current time synchronous method, the switch maintains the SNTP configuration. Figure 8-3. Example of SNTP Configuration When SNTP Is Not the Selected Time Synchronization Method Configuring (Enabling or Disabling) the SNTP Mode Enabling the SNTP mode means to configure it for either broadcast or unicast mode.

  • Page 158

    Time Protocols SNTP: Viewing, Selecting, and Configuring 3. Enable SNTP for Broadcast mode. 4. View the SNTP configuration again to verify the configuration. The commands and output would appear as follows: show sntp displays the SNTP configuration and also shows that TimeP is the currently active time synchronization mode.

  • Page 159

    Time Protocols SNTP: Viewing, Selecting, and Configuring N o t e Deleting an SNTP server when only one is configured disables SNTP unicast operation. For example, to select SNTP and configure it with unicast mode and an SNTP server at 10.28.227.141 with the default server version (3) and default poll interval (720 seconds): HPswitch(config)# timesync sntpSelects SNTP.

  • Page 160

    Time Protocols SNTP: Viewing, Selecting, and Configuring Deletes unicast SNTP server entry. Re-enters the unicast server with a non- default protocol version. show sntp displays the result. Figure 8-6. Example of Specifying the SNTP Protocol Version Number Changing the SNTP Poll Interval. This command lets you specify how long the switch waits between time polling intervals.

  • Page 161: Timep: Viewing, Selecting, And Configuring

    Time Protocols TimeP: Viewing, Selecting, and Configuring Disabling the SNTP Mode. If you want to prevent SNTP from being used even if selected by (or the Menu interface’s param- timesync Time Sync Method eter), configure the SNTP mode as disabled. Syntax: no sntp Disables SNTP by changing the SNTP mode configuration to...

  • Page 162: Menu: Viewing And Configuring Timep

    Time Protocols TimeP: Viewing, Selecting, and Configuring Table 8-2.Timep Parameters SNTP Parameter Operation Time Sync Used to select either TIMEP (the default), SNTP, or None as the time synchronization method. Method Timep Mode Disabled The Default. Timep does not operate, even if specified by the Menu interface Time Sync Method parameter or the CLI timesync command.

  • Page 163

    Time Protocols TimeP: Viewing, Selecting, and Configuring Time Protocol Selection Parameter – TIMEP (the default) – SNTP – None Figure 8-9. The System Information Screen (Default Values) Press (for Edit ). The cursor moves to the System Name field. Use [v] to move the cursor to the field.

  • Page 164: Cli: Viewing And Configuring Timep

    Time Protocols TimeP: Viewing, Selecting, and Configuring Note: This step replaces any previously configured TimeP server IP address. iii. Press [>] to move the cursor to the Poll Interval field, then go to step In the field, enter the time in minutes that you want for a TimeP Poll Interval Poll Interval.

  • Page 165: Configuring (enabling Or Disabling) The Timep Mode

    Time Protocols TimeP: Viewing, Selecting, and Configuring For example, if you configure the switch with TimeP as the time synchroniza- tion method, then enable TimeP in DHCP mode with the default poll interval, lists the following: show timep Figure 8-10. Example of TimeP Configuration When TimeP Is the Selected Time Synchronization Method If SNTP is the selected time synchronization method ), still lists the...

  • Page 166

    Time Protocols TimeP: Viewing, Selecting, and Configuring For example, suppose: Time synchronization is configured for SNTP. You want to: 1. View the current time synchronization. 2. Select TimeP as the time synchronization mode. 3. Enable TimeP for DHCP mode. 4. View the TimeP configuration. The commands and output would appear as follows: show timep displays the TimeP configuration and also shows that SNTP is the currently active time synchronization mode.

  • Page 167

    Time Protocols TimeP: Viewing, Selecting, and Configuring For example, to select TimeP and configure it for manual operation using a TimeP server address of 10.28.227.141 and the default poll interval (720 minutes, assuming the TimeP poll interval is already set to the default): HPswitch(config)# timesync timep Selects TimeP.

  • Page 168: Sntp Unicast Time Polling With Multiple Sntp Servers

    Time Protocols SNTP Unicast Time Polling with Multiple SNTP Servers If you then viewed the TimeP configuration, you would see the following: Figure 8-14. Example of TimeP with Time Sychronization Disabled Disabling the TimeP Mode. Disabling the TimeP mode means to configure it as disabled.

  • Page 169: Address Prioritization, Adding And Deleting Sntp Server Addresses

    Time Protocols SNTP Unicast Time Polling with Multiple SNTP Servers all servers in the list without success, it sends an error message to the Event Log and reschedules to try the address list again after the configured Poll Interval time has expired. Address Prioritization If you use the CLI to configure multiple SNTP servers, the switch prioritizes them according to the decimal values of their IP addresses.

  • Page 170: Addresses Configured

    Time Protocols SNTP Unicast Time Polling with Multiple SNTP Servers Prioritized list of SNTP Server IP Addresses Figure 8-16. Example of SNTP Server Address Prioritization N o t e If there are already three SNTP server addresses configured on the switch, and you want to use the CLI to replace one of the existing addresses with a new one, you must delete the unwanted address before you configure the new one.

  • Page 171: Sntp Messages In The Event Log

    Time Protocols SNTP Messages in the Event Log according to the criteria described under “Address Prioritization” on page 21. For example, suppose the switch already has the following three SNTP server IP addresses configured. 10.28.227.141 (primary) 10.28.227.153 (secondary) 10.29.227.100 (tertiary) If you use the Menu interface to add 10.28.227.160, the new prioritized list will New Address List Address Status...

  • Page 172

    Time Protocols SNTP Messages in the Event Log 8-24...

  • Page 173

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Contents Overview ........... . . 9-2 Viewing Port Status and Configuring Port Parameters .

  • Page 174

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Overview Overview This chapter includes: Configuring ports to non-default settings (page 9-2) These settings include enable/disable, mode (speed and duplex), flow control, port-trunk group, and port-trunk type. You can also set a broadcast limit that applies to all ports on the switch.

  • Page 175

    • Auto-10: Allows the port to negotiate between half-duplex (HDx) and full-duplex (FDx) while keeping speed at 10 Mbps. Also negotiates flow control (enabled or disabled). HP recommends Auto-10 for links between 10/100 autosensing ports connected with Cat 3 cabling. (Cat 5 cabling is required for 100 Mbps links.).

  • Page 176

    LACP trunk, if any, to which a port belongs. (CLI) Note: An LACP trunk requires a full-duplex link. In most cases, HP recommends that you leave the port Mode setting at Auto (the default). See the LACP Note on page 9-11.

  • Page 177: Menu: Viewing Port Status And Configuring Port Parameters

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Viewing Port Status and Configuring Port Parameters Menu: Viewing Port Status and Configuring Port Parameters From the menu interface, you can configure and view all port parameter settings and view all port status indicators. Using the Menu To View Port Status.

  • Page 178: Cli: Viewing Port Status And Configuring Port Parameters

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Viewing Port Status and Configuring Port Parameters Figure 9-2. Example of Port/Trunk Settings with a Trunk Group Configured (for Edit). The cursor moves to the Enabled field for the first port. Press Refer to the online help provided with this screen for further information on configuration options for these features.

  • Page 179

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Viewing Port Status and Configuring Port Parameters Syntax: show interfaces brief show interface config The next two figures list examples of the output of the above two commands for the same port configuration. Figure 9-3.

  • Page 180

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Viewing Port Status and Configuring Port Parameters Using the CLI To Configure Ports. You can configure one or more of the following port parameters. For details on each option, see Table 9-9-1 on page 9-3.

  • Page 181: Web: Viewing Port Status And Configuring Port Parameters

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Viewing Port Status and Configuring Port Parameters Configuring a Broadcast Limit on the Switch. Executing this command configures the broadcast limit for all ports on the switch. Syntax: broadcast-limit < 0 . . 99 > For example, to configure a broadcast limit of 20% for all ports on the switch: HPswitch(config)# broadcast-limit 20 To display the current broadcast limit setting, use one of the following com-...

  • Page 182: Port Trunking

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking Port Trunking Port Status and ConfigurationFeatures Feature Default Menu viewing port trunks page 9-16 page 9-18 page 9-24 configuring a static trunk none page 9-16 page 9-22 —...

  • Page 183: Series 4100gl Switches Port Trunk Features And Operation

    L A C P N o t e LACP operation requires full-duplex (FDx) links. For most installations, HP recommends that you leave the port Mode settings at Auto (the default). LACP also operates with Auto-10, Auto-100, and Auto-1000 (if negotiation selects FDx);...

  • Page 184: Trunk Configuration Methods

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking Fault Tolerance: If a link in a port trunk fails, the switch redistributes traffic originally destined for that link to the remaining links in the trunk. The trunk remains operable as long as there is at least one link in operation.

  • Page 185

    See “Trunk Group Operation Using LACP” on page 9-25. Trunk Provides manually configured, static-only trunking to: (non- • Most HP switches and routing switches not running the 802.3ad LACP protocol. protocol) • Windows NT and HP-UX workstations and servers Use the Trunk option when: –...

  • Page 186

    Media: All ports on both ends of a trunk group must have the same media type and mode (speed and duplex). The switch blocks any trunked links that do not conform to this rule. (For the Series 4100GL switches, HP recommends leaving the...

  • Page 187

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking Spanning Tree : Spanning Tree operates as a global setting on the switch (one instance of Spanning Tree per switch). However, you can adjust Spanning Tree parameters on a per-port basis. A static trunk of any type appears in the Spanning Tree configuration display, and you can configure Spanning Tree parameters for a static trunk in the same way that you would configure Spanning Tree parameters on a non-trunked port.

  • Page 188: Menu: Viewing And Configuring A Static Trunk Group

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking Menu: Viewing and Configuring a Static Trunk Group Important Configure port trunking before you connect the trunked links to another switch, routing switch, or server. Otherwise, a broadcast storm could occur. (If you need to connect the ports before configuring them for trunking, you can temporarily disable the ports until the trunk is configured.

  • Page 189

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking • All ports in a trunk must have the same media type and mode (such as 10/100TX set to 100FDx, or 100FX set to 100FDx). The flow control settings must also be the same for all ports in a given trunk.

  • Page 190: Trunk Group

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking During the Save process, traffic on the ports configured for trunking will be delayed for several seconds. If the Spanning Tree Protocol is enabled, the delay may be up to 30 seconds. Connect the trunked ports on the switch to the corresponding ports on the opposite device.

  • Page 191

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking Using a port list specifies, for switch ports in a static trunk group, only the ports you want to view. In this case, the command specifies ports A5 through A7.

  • Page 192

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking Listing Static LACP and Dynamic LACP Trunk Data. This command lists data for only the LACP-configured ports. Syntax: show lacp In the following example, ports A1 and A2 have been previously configured for a static LACP trunk.

  • Page 193: Using The Cli To Configure A Static Or Dynamic Trunk Group

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking “Up” Links Standby Link Figure 9-11. Example of a Dynamic LACP Trunk with One Standby Link Using the CLI To Configure a Static or Dynamic Trunk Group I m p o r t a n t Configure port trunking before you connect the trunked links between switches.

  • Page 194

    Removing a port from a trunk can result in a loop and cause a broadcast storm. When you remove a port from a trunk where STP is not in use, HP recommends that you first disable the port or disconnect the link on that port.

  • Page 195

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking Enabling a Dynamic LACP Trunk Group. In the default port configura- tion, all ports on the switch are set to LACP Passive. However, to enable the switch to automatically form a trunk group that is dynamic on both ends of the link, the ports on one end of a set of links must be LACP Active.

  • Page 196: Web: Viewing Existing Port Trunk Groups

    Unless STP is running on your network, removing a port from a trunk can result in a loop. To help prevent a broadcast storm when you remove a port from a trunk where STP is not in use, HP recommends that you first disable the port or disconnect the link on that port.

  • Page 197: Trunk Group Operation Using Lacp

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking Trunk Group Operation Using LACP The switch can automatically configure a dynamic LACP trunk group or you can manually configure a static LACP trunk group. N o t e LACP requires full-duplex (FDx) links of the same media type (10/100Base-T, 100FX, etc.) and the same speed, and enforces speed and duplex conformance across a trunk group.

  • Page 198

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking Table 9-5. LACP Trunk Types LACP Port Trunk Operation Configuration 802.3ad-compliant Dynamic LACP This option automatically establishes an trunk group, with LACP for the port Type parameter and DynX for the port Group name, where X is an automatically asssigned value from 1 to 6, depending on how many dynamic and static trunks are currently on the switch.

  • Page 199: Default Port Operation

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking Default Port Operation In the default configuration, all ports are configured for passive LACP. How- ever, if LACP is not configured, the port will not try to detect a trunk config- uration and will operate as a standard, untrunked port.

  • Page 200: Lacp Notes And Restrictions

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking LACP Notes and Restrictions 802.1x (Port-Based Access Control) Configured on a Port. To main- tain security, LACP is not allowed on ports configured for 802.1x authenticator operation. If you configure port security on a port on which LACP (active or passive) is configured, the switch removes the LACP configuration, displays a notice that LACP is disabled on the port(s), and enables 802.1x on that port.

  • Page 201

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking Changing Trunking Methods. To convert a trunk from static to dynamic, you must first eliminate the static trunk. Static LACP Trunks. Where a port is configured for LACP (Active or Passive), but does not belong to an existing trunk group, you can add that port to a static trunk.

  • Page 202: Trunk Group Operation Using The "trunk" Option, Trunk Operation Using The "fec" Option

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking Half-Duplex and/or Different Port Speeds Not Allowed in LACP Trunks. The ports on both sides of an LACP trunk must be configured for the same speed and for full-duplex (FDx). The 802.3ad LACP standard speci- fies a full-duplex (FDx) requirement for LACP trunking.

  • Page 203: How The Switch Lists Trunk Data, Outbound Traffic Distribution Across Trunked Links

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Port Trunking Depending on the capabilities of the device on the other end of the trunk, negotiate the forwarding mechanism on the trunk to the non-protocol option. When auto-negotiated to the SA/DA forwarding mechanism, provide higher performance on the trunk for broadcast, multicast, and flooded traffic through distribution in the same manner as non-protocol trunking.

  • Page 204

    In actual networking environments, this is rarely a problem. However, if it becomes a problem, you can use the HP TopTools for Hubs & Switches network management software available from Hewlett- Packard to quickly and easily identify the sources of heavy traffic (top talkers) and make adjustments to improve performance.

  • Page 205: Configuring Port-based Priority For Incoming Packets, The Role Of 802.1q Vlan Tagging

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Configuring Port-Based Priority for Incoming Packets Configuring Port-Based Priority for Incoming Packets Feature Default Menu Assigning a priority level to traffic on the basis Disabled page 9-36 of incoming port When network congestion occurs, it is important to move traffic on the basis of relative importance.

  • Page 206: Outbound Port Queues And Packet Priority Settings

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Configuring Port-Based Priority for Incoming Packets member of the VLAN, the packet carries its priority setting to the next, downstream device. If the outbound port is not configured as a tagged member of the VLAN, then the tag is stripped from the packet, which then exits from the switch without a priority setting.

  • Page 207: Gl Switches

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Configuring Port-Based Priority for Incoming Packets N o t e For a packet to carry a given 802.1p priority level from end-to-end in a network, the VLAN for the packet must be configured as tagged on all switch-to-switch links.

  • Page 208: Configuring And Viewing Port-based Priority

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Configuring Port-Based Priority for Incoming Packets Configuring and Viewing Port-Based Priority This command enables or disables port-based priority on a per-port basis. You can either enter the command on the interface context level or include the interface in the command.

  • Page 209: Messages Related To Prioritization, Troubleshooting Prioritization

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Configuring Port-Based Priority for Incoming Packets Configures port-based priority on ports A9 -A12 to "1" (Low) and saves the configuration changes to the startup- config file. Ports A9 - A12 are now configured to assign a priority level of "1"...

  • Page 210

    Optimizing Traffic Flow with Port Controls, Port Trunking, and Port-Based Priority Configuring Port-Based Priority for Incoming Packets 9-38...

  • Page 211

    Configuring for Network Management Applications Contents Using SNMP Tools To Manage the Switch ..... . 10-2 Overview ..........10-2 SNMP Management Features .

  • Page 212: Using Snmp Tools To Manage The Switch

    HP TopTools for Hubs & Switches — an OpenView-based network management application that runs on your Windows NT- or Windows 2000- based PC. HP TopTools for Hubs & Switches provides control of your switch through its web browser interface. In addition, it uses the RMON agent statistical sampling software that is included in the switch to provide easy-to- use traffic monitoring and network activity analysis tools.

  • Page 213: Snmp Management Features, Configuring For Snmp Access To The Switch

    Version 1 traps • RMON: groups 1, 2, 3, and 9 Managing the switch with an SNMP network management tool such as HP TopTools for Hubs & Switches Standard MIBs, such as the Bridge MIB (RFC 1493), Ethernet MAU MIB (RFC 1515), and others.

  • Page 214: Snmp Communities, Menu: Viewing And Configuring Snmp Communities

    Using SNMP Tools To Manage the Switch C a u t i o n The “public” community exists by default and is used by HP’s network man- agement applications. Deleting the “public” community disables many net- work management functions (such as auto-discovery, traffic monitoring, SNMP trap generation, and threshold setting).

  • Page 215

    Configuring for Network Management Applications Using SNMP Tools To Manage the Switch Note: This screen gives an overview of the SNMP communities that are currently Add and Edit options are configured. All fields in used to modify the SNMP this screen are read- options.

  • Page 216: Cli: Viewing And Configuring Community Names

    Configuring for Network Management Applications Using SNMP Tools To Manage the Switch CLI: Viewing and Configuring Community Names Community Name Commands Page show snmp-server [<community-string>] 10-6 [no] snmp-server 10-7 [community <community-str>] 10-7 [host <community-str> <ip-addr>] 10-10 [<none | debug | all | not-info | critical>] [enable traps <authentication>...

  • Page 217

    Configuring for Network Management Applications Using SNMP Tools To Manage the Switch Configuring Community Names and Values. The snmp-server command enables you to add SNMP communities with either default or specific access attributes, and to delete specific communities. Syntax: [ no ] snmp-server community < community-name > Configures a new community name.

  • Page 218: Trap Receivers And Authentication Traps

    Configuring for Network Management Applications Using SNMP Tools To Manage the Switch Trap Receivers and Authentication Traps Trap Features Feature Default Menu snmp-server host (trap receiver) public — page — 10-10 snmp-server enable (authentication trap) none — page — 10-11 A trap receiver is a management station designated by the switch to receive SNMP traps sent from the switch.

  • Page 219

    Configuring for Network Management Applications Using SNMP Tools To Manage the Switch Using the CLI To List Current SNMP Trap Receivers. This command lists the currently configured trap receivers and the setting for authentication traps (along with the current SNMP community name data — see “SNMP Communities”...

  • Page 220

    Table 10-1. Options for Sending Event Log Messages as Traps Event Level Description None (default) Send no log messages. Send all log messages. Not INFO Send the log messages that are not information-only. Critical Send critical-level log messages. Debug Reserved for HP-internal use. 10-10...

  • Page 221

    Configuring for Network Management Applications Using SNMP Tools To Manage the Switch For example, to configure a trap receiver in a community named "red-team" with an IP address of 10.28.227.130 to receive only "critical" log messages: HPswitch(config)# snmp-server trap-receiver red-team 10.28.227.130 critical N o t e s To replace one community name with another for the same IP address, you...

  • Page 222: Advanced Management: Rmon

    RMON traps and events. Note that you can access the Ethernet statistics, Alarm, and Event groups from the HP TopTools for Hubs & Switches network management software. For more on TopTools, see the "Read Me First" document shipped with your switch and also available on HP’s ProCurve website at...

  • Page 223: Introduction

    To take advantage of CDP in Series 4100GL switches, you should have a working knowledge of SNMP operation and an SNMP utility capable of polling the switches for CDP data. HP’s implementation of CDP places specific data into the switch’s Management Information Base (MIB). However, retrieval of this data for network mapping is dependent on the operation of your SNMP utility.

  • Page 224: Cdp Terminology

    Configuring for Network Management Applications An SNMP utility can progressively discover CDP devices in a network by: Reading a given device’s CDP Neighbor table (in the Management Infor- mation Base, or MIB) to learn about other, neighbor CDP devices Using the information learned in step 1 to go to and read the neighbor devices’...

  • Page 225: General Cdp Operation, Outgoing Packets

    Configuring for Network Management Applications General CDP Operation The switch stores information about adjacent CDP devices in a CDP Neigh- bors table maintained in the switch’s MIB (Management Information Base). This data is available to SNMP-based applications designed to read CDP data from the MIB.

  • Page 226: Incoming Cdp Packets

    Configuring for Network Management Applications Accepts, but does not forward CDP Switch "B" packets describing Switch "A". Also CDP-Aware transmits CDP packets describing itself Switch with (Switch "B") out all ports. CDP Running Switch "C" Drops CDP packets describing Switch "A".

  • Page 227

    Configuring for Network Management Applications CDP neighbor pairs are as follows: A/1, A/2, A/3, A/B, B/C. Note that "C" and "E" are not neighbors because the intervening CDP-disabled switch "D" does not forward CDP packets; i.e. is not transparent to CDP traffic. (For the same reason, switch "E"...

  • Page 228

    Configuring for Network Management Applications Using the example in figure 10-7, the CDP Neighbor table for switches "A" and "B" would appear similar to these: Switch A: Switch B: (Note that no CDP devices appear on port B5, which is connected to a device on which CDP is present, but disabled.) Figure 10-8.

  • Page 229: Configuring Cdp On The Switch

    Configuring for Network Management Applications CDP-disabled switch) does not forward CDP packets; i.e. is not transparent to CDP traffic. (For the same reason, switch "E" does not have any CDP neighbors.) Figure 10-7 (page 10-17) illustrates how multiple CDP neighbors can appear on a single port.

  • Page 230: Viewing The Switch's Current Cdp Configuration, Viewing The Switch's Current Cdp Neighbors Table

    Configuring for Network Management Applications Viewing the Switch’s Current CDP Configuration Syntax: show cdp Lists the switch’s global and per-port CDP configura- tion. This example shows the default CDP configuration. CDP Enable/Disable on the Switch Packet Hold Time in CDP Neighbor Table Interval for Transmitting Outbound CDP Packets on All Ports Per-Port CDP Enable/Disable...

  • Page 231: Clearing (resetting) The Cdp Neighbors Table

    CDP packets. Figure 10-10. Example of CDP Neighbors Table Listing Figure 10-11 illustrates a topology of CDP-enabled devices for the CDP Neigh- bors table listing in figure 10-10. HP Series 4100GL HP Switch 2512 Switch HP J4812A: Accounting...

  • Page 232: Configuring Cdp Operation

    Configuring for Network Management Applications Note that the table will again list entries after the switch recives new CDP packets from neighboring CDP devices. Figure 10-12. View of the CDP Neighbors Table Immediately After Executing cdp clear Configuring CDP Operation Enabling or Disabling CDP Operation on the Switch.

  • Page 233

    Configuring for Network Management Applications Enabling or Disabling CDP Operation on Individual Ports. In the factory-default configuration, the switch has all ports enabled and transmit- ting CDP packets. Disabling CDP on a port prevents that port from sending outbound CDP packets and causes it to drop inbound CDP packets without recording their data in the CDP Neighbors table.

  • Page 234: Effect Of Spanning Tree (stp) On Cdp Packet Transmission

    Configuring for Network Management Applications Changing the Transmission Interval for Outbound CDP Packets. Syntax: cdp timer < 5 . . 254 > Changes the interval the switch uses to transmit CDP packets describing itself to neighbor devices. (Default: 60 seconds) For example, if the switch’s transmit interval for CDP packets was set to a non-default value, you would use this command to reset it to one minute: HPswitch(config) cdp timer 60...

  • Page 235: Outbound Cdp Packets

    Configuring for Network Management Applications CDP Packets from Switch "A" to Switch "B" Switch "B" Switch "A" Port A3 CDP Enabled CDP Enabled Port B1 STP Root Device CDP Neighbor Table Port C5 CDP Packets from Port | Data Switch "B" to Switch "A" ------|------------------ CDP Neighbor Table A3 | Switch "B"data...

  • Page 236: Cdp Neighbor Data And Mib Objects

    Configuring for Network Management Applications If a CDP switch does not detect an IP address on the connecting port of a CDP neighbor, then the loopback IP address is used (127.0.0.1). For example, in figure 10-15, port A1 on CDP switch "X" is connected to port C5 on CDP neighbor switch "Y", with the indicated VLAN configuration on port VLAN Membership in Port C5 of Switch "Y"...

  • Page 237

    CDP Cache Address IP address of source device. Software Version ASCII String Device Name (ASCII string) In HP Procurve switches, this is the value configured for the System Name parameter. Device MAC Address Included in the Device Name entry. Destination Port Number On the Series 4100GL switches (the receiving device), the number of the port through which the CDP packet arrived.

  • Page 238

    Figure 10-16. Example of CDP Neighbor Data in a Series 4100GL Switch MIB For the current Series 4100GL switch MIB, go to the HP Procurve World Wide Web site at: http://ww.hp.com/go/hpprocurve...

  • Page 239

    Configuring for Network Management Applications CDP-Capable Hubs. Some hubs are capable of running CDP, but also forward CDP packets as if the hub itself were transparent to CDP. Such hubs will appear in the switch’s CDP Neighbor table and will also maintain a CDP neighbor table similar to that for switches.

  • Page 240

    Configuring for Network Management Applications 10-30...

  • Page 241

    Port-Based Virtual LANs (VLANs) and GVRP Contents Overview ........... . 11-2 Port-Based Virtual LANs (Static VLANs) .

  • Page 242

    For general information on how to use the switch’s built-in interfaces, see: Chapter 2, “Using the Menu Interface” Chapter 3, “Using the Command Line Interface (CLI)” Chapter 4, “Using the HP Web Browser Interface Chapter 5, “Switch Memory and Configuration” 11-2...

  • Page 243: Port-based Virtual Lans (static Vlans), Port-based Virtual Lans (static Vlans), Port-based Virtual Lans (static Vlans)

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) Port-Based Virtual LANs (Static VLANs) VLAN Features Feature Default Menu view existing VLANs n/a page 11-10 page 11-16 page 11-21 thru 11-15 configuring static default VLAN with page 11-10 page 11-15 page 11-21 VLANs VID = 1...

  • Page 244

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) eliminated and bandwidth is saved by not allowing packets to flood out all ports. An external router is required to enable separate VLANs on a switch to communicate with each other. For example, referring to figure 11-1, if ports A1 through A4 belong to VLAN_1 and ports A5 through A8 belong to VLAN_2, traffic from end-node stations on ports A2 through A4 is restricted to only VLAN_1, while traffic from ports A5...

  • Page 245

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) Switch 4108 Figure 11-2. Example of Overlapping VLANs Using the Same Server Similarly, using 802.1Q-compliant switches, you can connect multiple VLANs through a single switch-to-switch link. Switch Procurve Procurve Switch 2524 Switch...

  • Page 246: Overview Of Using Vlans, Vlan Support And The Default Vlan, The Primary Vlan

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) Switch 2524 Switch Procurve Procurve Switch 2524 Switch Switch Tagged VLAN Link Untagged VLAN Links Non-802.1Q- compliant switch Figure 11-4. Example of Tagged and Untagged VLAN Technology in the Same Network For more information on VLANs, refer to: “Overview of Using VLANs”...

  • Page 247: Per-port Static Vlan Configuration Options

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) features and ensure that multiple instances of DHCP or Bootp on different VLANs do not result in conflicting configuration values for the switch. The primary VLAN is the VLAN the switch uses to run and manage these features and data.

  • Page 248

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) Example of Per-Port VLAN Configuration Example of Per-Port with GVRP Disabled VLAN Configuration (the default) with GVRP Enabled Enabling GVRP causes “No” to display as “Auto”. Figure 11-5. Comparing Per-Port VLAN Options With and Without GVRP Table 11-1.

  • Page 249: General Steps For Using Vlans, Notes On Using Vlans

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) General Steps for Using VLANs Plan your VLAN strategy and create a map of the logical topology that will result from configuring VLANs. Include consideration for the interaction between VLANs and other features such as Spanning Tree Protocol, load balancing, and IGMP.

  • Page 250: Menu: Configuring Vlan Parameters

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) Menu: Configuring VLAN Parameters In the factory default state, support is enabled for up to eight VLANs. (You can change the switch VLAN configuration to support up to 30 VLANs.) Also, all ports on the switch belong to the default VLAN (DEFAULT_VLAN) and are in the same broadcast/multicast domain.

  • Page 251

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) To change the maximum number of VLANs, type the new number (1 - 30 allowed; default 8). To designate a different VLAN as the primary VLAN, select the Primary VLAN field and use the space bar to select from the existing options.

  • Page 252: Adding Or Editing Vlan Names

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) Adding or Editing VLAN Names Use this procedure to add a new VLAN or to edit the name of an existing VLAN. From the Main Menu select: 2. Switch Configuration 8.

  • Page 253: Adding Or Changing A Vlan Port Assignment

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) Example of a New VLAN and ID Figure 11-9. Example of VLAN Names Screen with a New VLAN Added Repeat steps 2 through 5 to add more VLANs. Remember that you can add VLANs until you reach the number specified in the Maximum VLANs to support field on the VLAN Support screen (see figure 11-6 on page 11-10).

  • Page 254

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) Default: In this example, the “VLAN-22” has been defined, but no ports have yet been assigned to it. (“No” means the port is not assigned to that VLAN.) Using GVRP? If you plan on using GVRP, any ports you don’t want to join should be changed...

  • Page 255: Cli: Configuring Vlan Parameters

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) Ports A4 and A5 are assigned to both VLANs. Ports A6 and A7 are assigned only to VLAN-22. All other ports are assigned only to the Default VLAN. Figure 11-11. Example of VLAN Assignments for Specific Ports For information on VLAN tags (“Untagged”...

  • Page 256

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) VLAN Commands Used in this Section show vlans below show vlan <vlan-id> page 11-17 max-vlans <1..30> page 11-18 primary-vlan <vlan-id> page 11-18 [no] vlan <vlan-id> page 11-19 name <vlan-name> page 11-20 [no] tagged <port-list>...

  • Page 257

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) Displaying the Configuration for a Particular VLAN . This command uses the VID to identify and display the data for a specific static or dynamic VLAN. Syntax: show vlan <vlan-id> Figure 11-13.

  • Page 258

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) Changing the Number of VLANs Allowed on the Switch. By default, the switch allows a maximum of 8 VLANs. You can specify any value from 1 to 30. (If GVRP is enabled, this setting includes any dynamic VLANs on the switch.) As part of implementing a new value, you must execute a write memory command (to save the new value to the startup-config file) and then reboot the switch.

  • Page 259

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) Creating a New Static VLAN Changing the VLAN Context Level. With this command, entering a new VID creates a new static VLAN. Entering the VID or name of an existing static VLAN places you in the context level for that VLAN.

  • Page 260

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) Converting a Dynamic VLAN to a Static VLAN. If GVRP is running on the switch and a port dynamically joins a VLAN, you can use the next command to convert the dynamic VLAN to a static VLAN. (For GVRP and dynamic VLAN operation, see “GVRP”...

  • Page 261: Web: Viewing And Configuring Vlan Parameters

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) For example, if you have a VLAN named VLAN100 with a VID of 100, and all ports are set to No for this VLAN. To change the VLAN name to “Blue_Team” and set ports 1-5 to Tagged, you could do so with these commands: HPswitch(config)# vlan 100 name Blue_Team HPswitch(config)# vlan 100 tagged 1-5...

  • Page 262: Vlan Tagging Information

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) VLAN Tagging Information VLAN tagging enables traffic from more than one VLAN to use the same port. (Even when two or more VLANs use the same port they remain as separate domains and cannot receive traffic from each other without going through an external router.) As mentioned earlier, a “tag”...

  • Page 263

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) In switch X: • VLANs assigned to ports X1 - X6 can all be untagged because there is only one VLAN assignment per port. Red VLAN traffic will go out only the Red ports;...

  • Page 264

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) VLAN tagging gives you several options: Since the purpose of VLAN tagging is to allow multiple VLANs on the same port, any port that has only one VLAN assigned to it can be configured as “Untagged”...

  • Page 265

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) The VLANs assigned to ports X3, X4, Y2, Y3, and Y4 can all be untagged because there is only one VLAN assigned per port. Port X1 has multiple VLANs assigned, which means that one VLAN assigned to this port can be untagged and any others must be tagged.

  • Page 266: The Secure Management Vlan

    The Secure Management VLAN Configures a secure Management VLAN by creating an isolated network for managing the HP Procurve switches that support this feature. (As of June 1, 2002, includes the HP Procurve Series 4100GL switches and Series 5300XL switches.) Access to this VLAN, and to the switch’s management functions (Menu, CLI, and web browser interface) is available only through ports configured as members.

  • Page 267: Preparation

    Manual. Plan your Management VLAN topology to use HP Procurve switches that support this feature. (As of June 1, 2002, this includes the HP Procurve Series 5300XL and Series 4100GL switches.) The ports belonging to the Management VLAN should be only the following: •...

  • Page 268: Configuration

    • Ports on one switch that you will use to extend the Management VLAN to ports on other HP Procurve switches (such as ports A1 and B2 or B4 and C2 in figure 11-21 on page 11-27.). Hubs dedicated to connecting management stations to the Management VLAN can also be included in the above topology.

  • Page 269: Operating Notes For Management Vlans

    Operating Notes for Management VLANs If there are more than 25 VLANs configured on the switch, reboot the switch after configuring the management VLAN. ( HP Series 5300XL switches only.) If you implement a Management VLAN in a switch mesh environment, all meshed ports on Series 5300XL switches will be members of the Manage- ment VLANs.

  • Page 270: Effect Of Vlans On Other Switch Features, Spanning Tree Operation With Vlans, Ip Interfaces

    Operation with 802.1Q VLANs” on page 13-4. Note that Spanning Tree operates differently in different devices. For example, in the (obsolete, non-802.1Q) HP Switch 2000 and the HP Switch 800T, Span- ning Tree operates on a per-VLAN basis, allowing redundant physical links as long as they are in separate VLANs.

  • Page 271: Vlan Mac Addresses, Port Trunks, Port Monitoring, Vlan Restrictions

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) IP interface for that VLAN is also activated. Likewise, when a VLAN is deactivated because all of its ports are down, the corresponding IP interface is also deactivated. VLAN MAC Addresses The switch has one unique MAC address for each of its VLAN interfaces.

  • Page 272

    Port-Based Virtual LANs (VLANs) and GVRP Port-Based Virtual LANs (Static VLANs) HP Router Requirements. Use the Hewlett-Packard version A.09.70 (or later) router OS release if any of the following Hewlett-Packard routers are installed in networks in which you will be using VLANs:...

  • Page 273: Gvrp

    Port-Based Virtual LANs (VLANs) and GVRP GVRP GVRP Feature Default Menu view GVRP configuration page 11-42 page 11-43 page 11-46 list static and dynamic VLANs — page 11-45 page 11-46 on a GVRP-enabled switch enable or disable GVRP disabled page 11-42 page 11-44 page 11-46 enable or disable GVRP on...

  • Page 274: General Operation

    Port-Based Virtual LANs (VLANs) and GVRP GVRP General Operation When GVRP is enabled on a switch, the VID for any static VLANs configured on the switch is advertised (using BPDUs—Bridge Protocol Data Units) out all ports, regardless of whether a port is up or assigned to any particular VLAN. A GVRP-aware port on another device that receives the advertisements over a link can dynamically join the advertised VLAN.

  • Page 275

    Port-Based Virtual LANs (VLANs) and GVRP GVRP For example, in the following figure, Tagged VLAN ports on switch “A” and switch “C” advertise VLANs 22 and 33 to ports on other GVRP-enabled switches that can dynamically join the VLANs. Switch “C” Switch “A”...

  • Page 276: Per-port Options For Handling Gvrp "unknown Vlans", Per-port Options For Handling Gvrp "unknown Vlans

    Port-Based Virtual LANs (VLANs) and GVRP GVRP Note also that a port belonging to a Tagged or Untagged static VLAN has these configurable options: Send VLAN advertisements, and also receive advertisements for VLANs on other ports and dynamically join those VLANs. Send VLAN advertisements, but ignore advertisements received from other ports.

  • Page 277

    Port-Based Virtual LANs (VLANs) and GVRP GVRP Table 11-3. Options for Handling “Unknown VLAN” Advertisements: Unknown VLAN Operation Mode Learn Enables the port to become a member of any unknown VLAN for which it (the Default) receives an advertisement. Allows the port to advertise other VLANs that have at least one other port on the same switch as a member.

  • Page 278: Per-port Options For Dynamic Vlan Advertising And Joining

    Port-Based Virtual LANs (VLANs) and GVRP GVRP Per-Port Options for Dynamic VLAN Advertising and Joining Initiating Advertisements. As described in the preceding section, to enable dynamic joins, GVRP must be enabled and a port must be configured to Learn (the default). However, to send advertisements in your network, one or more static (Tagged, Untagged, or Auto) VLANs must be configured on one or more switches (with GVRP enabled), depending on your topology.

  • Page 279

    Port-Based Virtual LANs (VLANs) and GVRP GVRP Table 11-4. Controlling VLAN Behavior on Ports with Static VLANs Per-Port Static VLAN Options—Per VLAN Specified on Each Port “Unknown VLAN” Port Activity: Port Activity: Port Activity: Forbid (Per VLAN) (GVRP) Auto (Per VLAN) Tagged or Untagged (Per VLAN) Configuration Learn...

  • Page 280: Gvrp And Vlan Access Control

    Because dynamic VLANs operate as Tagged VLANs, and because a tagged port on one device cannot communicate with an untagged port on another device, HP recommends that you use Tagged VLANs for the static VLANs you will use to generate advertisements.

  • Page 281: Planning For Gvrp Operation, Configuring Gvrp On A Switch

    Port-Based Virtual LANs (VLANs) and GVRP GVRP Planning for GVRP Operation These steps outline the procedure for setting up dynamic VLANs for a seg- ment. Determine the VLAN topology you want for each segment (broadcast domain) on your network. Determine the VLANs that must be static and the VLANs that can be dynamically propagated.

  • Page 282: Menu: Viewing And Configuring Gvrp

    Port-Based Virtual LANs (VLANs) and GVRP GVRP Menu: Viewing and Configuring GVRP From the Main Menu, select: 2. Switch Configuration . . . 8. VLAN Menu . . . 1. VLAN Support Figure 11-27. The VLAN Support Screen (Default Configuration) Do the following to enable GVRP and display the Unknown VLAN fields: Press (for Edit).

  • Page 283: Cli: Viewing And Configuring Gvrp

    Port-Based Virtual LANs (VLANs) and GVRP GVRP Use the arrow keys to select the port you want, and the Space bar to select Unknown VLAN option for any ports you want to change. When you finish making configuration changes, press , then (for [Enter]...

  • Page 284

    Port-Based Virtual LANs (VLANs) and GVRP GVRP Enabling and Disabling GVRP on the Switch. This command enables GVRP on the switch. Syntax: gvrp This example enables GVRP: HPswitch(config)# gvrp This example disables GVRP operation on the switch: HPswitch(config)# no gvrp Enabling and Disabling GVRP On Individual Ports.

  • Page 285

    Port-Based Virtual LANs (VLANs) and GVRP GVRP Displaying the Static and Dynamic VLANs Active on the Switch. The show vlans command lists all VLANs present in the switch. Syntax: show vlans For example, in the following illustration, switch “B” has one static VLAN (the default VLAN), with GVRP enabled and port 1 configured to Learn for Unknown VLANs.

  • Page 286: Web: Viewing And Configuring Gvrp, Gvrp Operating Notes

    Port-Based Virtual LANs (VLANs) and GVRP GVRP Converting a Dynamic VLAN to a Static VLAN. If a port on the switch has joined a dynamic VLAN, you can use the following command to convert that dynamic VLAN to a static VLAN: Syntax: static <dynamic-vlan-id>...

  • Page 287

    Port-Based Virtual LANs (VLANs) and GVRP GVRP Converting a dynamic VLAN to a static VLAN and then executing the write memory command saves the VLAN in the startup-config file and makes it a permanent part of the switch’s VLAN configuration. Within the same broadcast domain, a dynamic VLAN can pass through a device that is not GVRP-aware.

  • Page 288

    Port-Based Virtual LANs (VLANs) and GVRP GVRP 11-48...

  • Page 289

    Multimedia Traffic Control with IP Multicast (IGMP) Contents Overview ........... . 12-2 General Operation and Features .

  • Page 290

    For general information on how to use the switch’s built-in interfaces, see: Chapter 2, “Using the Menu Interface” Chapter 3, “Using the Command Line Interface (CLI)” Chapter 4, “Using the HP Web Browser Interface Appendix C, “Switch Memory and Configuration” 12-2...

  • Page 291: General Operation And Features

    Multimedia Traffic Control with IP Multicast (IGMP) General Operation and Features General Operation and Features IGMP Features Feature Default Menu view igmp configuration — page 12-6 — show igmp status for multicast — — groups used by the selected VLAN enabling or disabling IGMP disabled —...

  • Page 292: Igmp Terms

    Querier. When enabled (the default state), the switch’s querier function eliminates the need for a multicast router. In most cases, HP recommends that you leave this parameter in the default “enabled”...

  • Page 293: Igmp Operating Features, Basic Operation

    Multimedia Traffic Control with IP Multicast (IGMP) General Operation and Features IGMP Operating Features Basic Operation In the factory default configuration, IGMP is disabled. If multiple VLANs are not configured, you must configure IGMP on the default VLAN (DEFAULT_VLAN; VID = 1). If multiple VLANs are configured, you must configure IGMP on a per-VLAN basis for every VLAN where this feature is desired.

  • Page 294: Cli: Configuring And Displaying Igmp

    Multimedia Traffic Control with IP Multicast (IGMP) CLI: Configuring and Displaying IGMP Querier Capability: The switch performs this function for IGMP on VLANs having an IP address when there is no other device in the VLAN acting as querier. See “Querier Operation” on page 12-18. N o t e s Whenever IGMP is enabled, the switch generates an Event Log message indicating whether querier functionality is enabled.

  • Page 295

    Multimedia Traffic Control with IP Multicast (IGMP) CLI: Configuring and Displaying IGMP Viewing the Current IGMP Configuration. This command lists the IGMP configuration for all VLANs configured on the switch or for a specific VLAN. Syntax: show ip igmp config IGMP configuration for all VLANs on the switch show ip igmp vlan <vid>...

  • Page 296

    Multimedia Traffic Control with IP Multicast (IGMP) CLI: Configuring and Displaying IGMP IGMP Configuration for the Selected VLAN IGMP Configuration On the Individual Ports in the VLAN Figure 12-2. Example Listing of IGMP Configuration for A Specific VLAN Enabling or Disabling IGMP on a VLAN. You can enable IGMP on a VLAN, along with the last-saved or default IGMP configuration (whichever was most recently set), or you can disable IGMP on a selected VLAN.

  • Page 297

    Multimedia Traffic Control with IP Multicast (IGMP) CLI: Configuring and Displaying IGMP Configuring Per-Port IGMP Packet Control. Use this command in the VLAN context to specify how each port should handle IGMP traffic. Syntax: vlan <vid> ip igmp [auto <port-list> | blocked <port-list> | forward <port-list>] auto Default: For example, suppose you wanted to configure IGMP as follows for VLAN 1...

  • Page 298: Web: Enabling Or Disabling Igmp

    Multimedia Traffic Control with IP Multicast (IGMP) CLI: Configuring and Displaying IGMP Returns IGMP traffic to (vlan 1)# no ip igmp HPswitch high-priority-forward “normal” priority. Show command to display HPswitch > show ip igmp config results of above high-priority commands. Configuring the Querier Function.

  • Page 299: How Igmp Operates

    Multimedia Traffic Control with IP Multicast (IGMP) How IGMP Operates How IGMP Operates The Internet Group Management Protocol (IGMP) is an internal protocol of the Internet Protocol (IP) suite. IP manages multicast traffic by using switches, multicast routers, and hosts that support IGMP. (In Hewlett-Pack- ard’s implementation of IGMP, a multicast router is not necessary as long as a switch is configured to support IGMP with the feature enabled.) A set...

  • Page 300: Operation With Or Without Ip Addressing

    IGMP client on a port in the VLAN leaves the cast router or another switch configured for IGMP oper- group. ation. (HP recommends that the VLAN also include a device operating as a backup Querier in case the device Support Fast-Leave IGMP (below) and Forced operating as the primary Querier fails for any reason.

  • Page 301: Automatic Fast-leave Igmp

    Multimedia Traffic Control with IP Multicast (IGMP) How IGMP Operates Automatic Fast-Leave IGMP IGMP Operation Presents a "Delayed Leave" Problem. Where multiple IGMP clients are connected to the same port on an IGMP device (switch or router), if only one IGMP client joins a given multicast group, then later sends a Leave Group message and ceases to belong to that group, the IGMP device retains that IGMP client in its IGMP table and continues forwarding IGMP traffic to the IGMP client until the Querier triggers confirmation that no other...

  • Page 302: Forced Fast-leave Igmp

    Multimedia Traffic Control with IP Multicast (IGMP) How IGMP Operates In the next figure, automatic Fast-Leave operates on the switch ports for IGMP clients "3A" and "5B", but not on the switch port for IGMP clients "7A" and 7B, Server "7C", and printer "7D". Fast-Leave IGMP Server automatically operates on...

  • Page 303: Configuration Options For Forced Fast-leave, Listing The Forced Fast-leave Configuration

    IGMP client) on that port. N o t e o n V L A N In the HP Procurve Switch 4108GL, the walkmib and setmib commands use an internal N u m b e r s : VLAN number (and not the VLAN ID, or VID) to display or change many per-vlan features, such as the Forced Fast-Leave state.

  • Page 304

    Multimedia Traffic Control with IP Multicast (IGMP) How IGMP Operates - OR - walkmib 1.3.6.1.4.1.11.2.14.11.5.1.7.1.15.3.1.5 The resulting display lists the Forced Fast-Leave state for all ports in the switch, by VLAN. (A port belonging to more than one VLAN will be listed once for each VLAN, and if multiple VLANs are not configured, all ports will be listed as members of the default VLAN.) The following command produces a listing such as that shown in figure 12-4:...

  • Page 305: Configuring Per-port Forced Fast-leave Igmp

    Multimedia Traffic Control with IP Multicast (IGMP) How IGMP Operates shows that Fast Forced-Leave is disabled on port 7. 6 specifies port A6. indicates the default VLAN. (See the "Note on VLAN Numbers" on page 12-15.) Figure 15-5. Example Listing the Forced Fast-Leave State for a Single Port on the Default VLAN Configuring Per-Port Forced Fast-Leave IGMP In the factory-default configuration, Forced Fast-Leave is disabled for all ports...

  • Page 306: Using The Switch As Querier, Querier Operation

    Multimedia Traffic Control with IP Multicast (IGMP) Using the Switch as Querier DEFAULT_CONFIG: setmib hpSwitchIgmpPortForcedLe- aveState.1.49 -i 1 Verifies Forced Fast-Leave enabled. indicates port C1. indicates the default VLAN. (See the note on page 12-15.) Figure 15-6. Example of Changing the Forced Fast-Leave Configuration on Port 49 Using the Switch as Querier Querier Operation The function of the IGMP Querier is to poll other IGMP-enabled devices in an...

  • Page 307: The Switch Excludes Well-known Or Reserved Multicast Addresses From Ip Multicast Filtering

    Multimedia Traffic Control with IP Multicast (IGMP) The Switch Excludes Well-Known or Reserved Multicast Addresses from IP Multicast Filtering In the above scenario, if the other device ceases to operate as a Querier on the default VLAN, then the switch detects this change and can become the Querier as long as it is not pre-empted by some other IGMP Querier on the VLAN.

  • Page 308: Number Of Ip Multicast Addresses Allowed

    IGMP group is active. If the IGMP group subsequently deactivates, the switch returns filtering control to the static filter. This operation applies to the HP Procurve Switch 1600M, 2400M, 2424M, 4000M, and 8000M, but not to the Series 2500 switches and the Switch 4108GL (which do not have static traffic/security filters).

  • Page 309

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Contents Overview ........... . 13-2 How Spanning Tree Operates .

  • Page 310

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Overview Overview STP Features 802.1d Spanning Tree Default Menu Protocol viewing the STP page 13-19 page 13-10 — configuration enable/disable STP disabled page 13-19 page 13-23 page 13-41 reconfiguring general priority: 32768 page 13-19 page 13-24...

  • Page 311

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Overview Use spanning tree to ensure that only one active path at a time exists between any two nodes on the network. In networks where there is more than one physical, active path between any two nodes, enabling spanning tree ensures a single active path between such nodes by blocking all redundant paths.

  • Page 312: How Spanning Tree Operates

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) How Spanning Tree Operates How Spanning Tree Operates The switch automatically senses port identity and type, and automatically defines spanning-tree parameters for each type, as well as parameters that apply across the switch.

  • Page 313: Spanning Tree Options: Rstp (802.1w) And Stp (802.1d)

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) How Spanning Tree Operates ates untagged BPDUs). This means that if redundant physical links exist in separate VLANs, spanning tree will block all but one of those links. However, if you need to use spanning tree on the Series 4100GL switches in a VLAN environment with redundant physical links, you can prevent blocked redun- dant links by using a port trunk.

  • Page 314: Stp (802.1d)

    RSTP is designed to be compatible with IEEE 802.1d STP, and HP recommends that you employ it in your network. For more information, refer to “Transi- tioning from STP to RSTP”...

  • Page 315: Configuring Rapid Reconfiguration Spanning Tree (rstp), Configuring Rapid Reconfiguration Spanning Tree (rstp)

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Configuring Rapid Reconfiguration Spanning Tree (RSTP) Configuring Rapid Reconfiguration Spanning Tree (RSTP) This section describes the operation of the IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) Overview RSTP Feature Default Menu Viewing the RSTP/STP configuration...

  • Page 316: Transitioning From Stp To Rstp

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Configuring Rapid Reconfiguration Spanning Tree (RSTP) Transitioning from STP to RSTP IEEE 802.1w RSTP is designed to be compatible with IEEE 802.1d STP. Even if all the other devices in your network are using STP, you can enable RSTP on your switch, and even using the default configuration values, your switch will interoperate effectively with the STP devices.

  • Page 317: Configuring Rstp, Optimizing The Rstp Configuration

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Configuring Rapid Reconfiguration Spanning Tree (RSTP) Configuring RSTP The default switch configuration has spanning tree disabled with RSTP as the selected protocol. That is, when spanning tree is enabled, RSTP is the version of spanning tree that is enabled, by default.

  • Page 318: Cli: Configuring Rstp

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Configuring Rapid Reconfiguration Spanning Tree (RSTP) CLI: Configuring RSTP Spanning Tree Commands in This Section Applicable Location Protocol Version show spanning-tree config both Below on this page spanning-tree both page 13-11 protocol-version <rstp | stp>...

  • Page 319

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Configuring Rapid Reconfiguration Spanning Tree (RSTP) Figure 13-3. Example of the Spanning Tree Configuration Display Enabling or Disabling RSTP. Issuing the command to enable spanning tree on the switch implements, by default, the RSTP version of spanning tree for all physical ports on the switch.

  • Page 320

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Configuring Rapid Reconfiguration Spanning Tree (RSTP) For the STP version of spanning tree, the rest of the information in this section does not apply. Refer to “802.1p Spanning-Tree Protocol (STP)” on page 13-19 for more information on the STP version and its parameters.

  • Page 321

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Configuring Rapid Reconfiguration Spanning Tree (RSTP) N o t e Executing the spanning-tree command alone enables spanning tree. Executing the command with one or more of the whole-switch RSTP parameters shown in the table on the previous page, or with any of the per-port RSTP parameters shown in the table on page 14, does not enable spanning tree.

  • Page 322

    Forwarding state. In this way, the ports operate very similarly to ports that are configured in “fast mode” under the STP implementation in previous HP switch software. Disable this feature on all switch ports that are connected to another switch, or bridge, or hub.

  • Page 323

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Configuring Rapid Reconfiguration Spanning Tree (RSTP) Syntax: Abbreviations: spanning-tree [ethernet] <port-list> span <port-list> path-cost <1 - 200000000> path <1 - 200000000> point-to-point-mac <force-true | force-false | auto> forc <force-t | force-f | auto> priority <0 - 15>...

  • Page 324: Menu: Configuring Rstp

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Configuring Rapid Reconfiguration Spanning Tree (RSTP) Menu: Configuring RSTP From the console CLI prompt, enter the menu command. HP Procurve Switch # menu From the switch console Main Menu, select 2. Switch Configuration ... 4. Spanning Tree Operation (for Edit) to highlight the Protocol Version parameter field.

  • Page 325

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Configuring Rapid Reconfiguration Spanning Tree (RSTP) Figure 13-4. Example of the RSTP Configuration Screen Press the key or use the arrow keys to go to the next parameter you [T ab] want to change, then type in the new value or press the Space bar to select a value.

  • Page 326: Web: Enabling Or Disabling Rstp

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Configuring Rapid Reconfiguration Spanning Tree (RSTP) Web: Enabling or Disabling RSTP In the web browser interface, you can enable or disable spanning tree on the switch. If the default configuration is in effect such that RSTP is the selected protocol version, enabling spanning tree through the web browser interface will enable RSTP with its current configuration.

  • Page 327: P Spanning-tree Protocol (stp), P Spanning-tree Protocol (stp), Menu: Configuring 802.1d Stp

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) Menu: Configuring 802.1D STP From the Main Menu, select: 2. Switch Configuration . . . 4. Spanning Tree Operation Use this field to select the 802.1d version of STP. Figure 13-5.

  • Page 328

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) Use this field to enable spanning tree. Read-Only Fields Figure 13-6. Enabling Spanning-Tree Operation If the remaining STP parameter settings are adequate for your network, go to step 10.

  • Page 329

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) Figure 13-7. The Configuration Menu Indicating a Reboot Is Needed to Implement a Configuration Change 11. Press to return to the Main menu. Figure 13-8. The Main Menu Indicating a Reboot Is Needed To Implement a Configuration Change 12.

  • Page 330: Cli: Configuring 802.1d Stp

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) CLI: Configuring 802.1D STP STP Commands Used in This Section show spanning-tree config Below spanning-tree protocol-version page 13-23 forward-delay <4 - 30> page 13-24 hello-time <1 - 10>...

  • Page 331

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) Configuring the Switch To Use the 802.1d Spanning Tree Protocol (STP). In the default configuration, the switch is set to RSTP (that is, 802.1w Rapid Spanning Tree), and spanning tree operation is disabled.

  • Page 332

    C a u t i o n Because incorrect STP settings can adversely affect network performance, HP recommends that you use the default STP parameter settings. You should not change these settings unless you have a strong understanding of how STP operates.

  • Page 333

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) N o t e Executing spanning-tree alone enables STP. Executing spanning-tree with one or more of the above “STP Operating Parameters” does not enable STP. It only configures the STP parameters (regardless of whether STP is actually running (enabled) on the switch).

  • Page 334: Stp Fast Mode

    (Forwarding or Blocking, as determined by the STP negotiation). This sequence takes two times the forward delay value configured for the switch. The default is 15 seconds on HP switches, per the IEEE 802.1D standard recommendation, resulting in a total STP negotiation time of 30 seconds. Each switch port goes through this start-up sequence whenever the network con- nection is established on the port.

  • Page 335: Fast-uplink Spanning Tree Protocol (stp), Fast-uplink Spanning Tree Protocol (stp), Fast-uplink Spanning Tree Protocol (stp)

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) C a u t i o n The Fast Mode configuration should be used only on switch ports connected to end nodes. Changing the Mode to Fast on ports connected to hubs, switches, or routers may cause loops in your network that STP may not be able to immediately detect, in all cases.

  • Page 336

    STP. However, because fast uplink should be configured only on the Series 4100GL switch uplink ports, the device(s) on the other end of the links can be either HP devices or another vendor’s devices, regardless of whether they support fast uplink. For example: Port A is the STP root port.

  • Page 337: Terminology

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) Terminology Term Definition downlink port A switch port that is linked to a port on another switch (or to an end node) that is sequentially further away from the STP root device.

  • Page 338: Operating Rules For Fast Uplink

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) In figure 13-12, STP is enabled and in its default configuration on all switches, unless otherwise indicated in table 13-5, below: Table 13-5.STP Parameter Settings for Figure 13-12 STP Parameter Switch "1"...

  • Page 339: Menu: Viewing And Configuring Fast-uplink Stp

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) Edge switches cannot be directly linked together using fast-uplink ports. For example, the connection between switches 4 and 5 in figure 13-13 is not allowed for fast-uplink operation. Switch The ports that make up...

  • Page 340

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) To View and/or Configure Fast-Uplink STP. This procedure uses the Spanning Tree Operation screen to enable STP and to set the Mode for fast- uplink STP operation.

  • Page 341

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) If the Protocol Version is set to RSTP (as shown in figure 13-14), do the following: ) to move the cursor to the Protocol Version field. Press Edit b.

  • Page 342

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) In this example, ports 2 and 3 have already been configured as a port trunk (Trk1), which appears at the end of the port listing. All ports (and the trunk) are in their default STP configuration.

  • Page 343

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) STP is enabled. Port A1 and Trk1 are now configured for fast-uplink STP. Figure 13-17. Example of STP Enabled with Two Redundant Links Configured for Fast-Uplink STP Press (for...

  • Page 344

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) Indicates which uplink is the active path to the STP root device. Note: A switch using fast-uplink STP must never be the STP root device.

  • Page 345: Cli: Viewing And Configuring Fast-uplink Stp

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) In figure 13-19: • Port A1 and Trk1 (trunk 1; formed from ports 2 and 3) are redundant fast-uplink STP links, with trunk 1 forwarding (the active link) and port A1 blocking (the backup link).

  • Page 346

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) Indicates that Trk1 (Trunk 1) provides the currently active path to the STP root device. Redundant STP link in the Blocking state. Links to PC or Workstation End Nodes Redundant STP link in the Forwarding state.

  • Page 347

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) STP Enabled on the Switch Fast-Uplink Configured on Port 1 and Trunk 1 (Trk1) Figure 13-22. Example of a Configuration Supporting the STP Topology Shown in Figure 13-20 Using the CLI To Configure Fast-Uplink STP.

  • Page 348

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) 802.1p Spanning-Tree Protocol (STP) Lists STP configuration. Shows the default STP protocol 1. Changes the Spanning-Tree protocol to STP (required for Fast-Uplink). 2. Saves the change to the startup-configuration 3.

  • Page 349: Web: Enabling Or Disabling Stp

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Web: Enabling or Disabling STP N o t e When you add a port to a trunk, the port takes on the STP mode configured for the trunk, regardless of which STP mode was configured on the port before it was added to the trunk.

  • Page 350

    802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP) Web: Enabling or Disabling STP 13-42...

  • Page 351

    Which Devices Support Stacking? ......14-4 Components of HP Procurve Stack Management ....14-5 General Stacking Operation .

  • Page 352

    For general information on how to use the switch’s built-in interfaces, see: Chapter 2, “Using the Menu Interface” Chapter 3, “Using the Command Line Interface (CLI)” Chapter 4, “Using the HP Web Browser Interface Chapter 5, “Switch Memory and Configuration” 14-2...

  • Page 353: Operation

    60 seconds page 14-13 page 14-44 HP Procurve Stack Management (termed stacking) enables you to use a single IP address and standard network cabling to manage a group of up to 16 total switches in the same IP subnet (broadcast domain). Using stacking, you can: Reduce the number of IP addresses needed in your network.

  • Page 354: Which Devices Support Stacking?, Which Devices Support Stacking

    *Requires software release C.08.03 or later, which is included with the 8000M, 4000M, 2424M, and 1600M models as of July, 2000. Release C.08.03 or a later version is also available on the HP Procurve website at www.hp.com/go/ procurve. (Click on...

  • Page 355: Components Of Hp Procurve Stack Management, General Stacking Operation

    HP Procurve Stack Management Operation Components of HP Procurve Stack Management Table 14-1. Stacking Definitions Stack Consists of a Commander switch and any Member switches belonging to that Commander’s stack. Commander A switch that has been manually configured as the controlling device for a stack. When this occurs, the switch’s stacking configuration appears as Commander.

  • Page 356: Operating Rules For Stacking

    HP Procurve Stack Management Operation Use the Commander’s console or web Wiring Closet "A" browser interface to access the user Member Switch 1 Candidate Switch interface on any Member switch in IP Address: None Assigned IP Address: None Assigned the same stack.

  • Page 357

    HP Procurve Stack Management Operation If multiple VLANs are configured, stacking uses only the primary VLAN on any switch. In the factory-default configuration, the DEFAULT_VLAN is the primary VLAN. (See “Stacking Operation with Multiple VLANs Configured” on page 14-44 and “The Primary VLAN”...

  • Page 358: Specific Rules

    HP Procurve Stack Management Operation Specific Rules Table 14-2. Specific Rules for Commander, Candidate, and Member Switche IP Addressing and Number Allowed Passwords SNMP Communities Stack Name Per Stack Commander IP Addr: Requires an Only one The Commander’s Manager Standard SNMP community...

  • Page 359: Configuring Stack Management, Overview Of Configuring And Bringing Up A Stack

    Candidates from automatically joining a stack prematurely or joining the wrong stack (if more than one stack Commander is configured in a subnet or broadcast domain). If you plan to install more than one stack in a subnet, HP recommends that you leave...

  • Page 360

    HP Procurve Stack Management Configuring Stack Management Options for Configuring a Commander and Candidates. Depending on how Commander and Candidate switches are configured, Candidates can join a stack either automatically or by a Commander manually adding (“pulling”) them into the stack. In the default configuration, a Candidate joins only when manually pulled by a Commander.

  • Page 361

    HP Procurve Stack Management Configuring Stack Management Default stacking configuration ( set to , and Stack State Candidate Auto Join set to Same subnet (broadcast domain) and default VLAN as the Commander (If VLANs are used in the stack environment, see "Stacking Operation with a Tagged VLAN"...

  • Page 362

    HP Procurve Stack Management Configuring Stack Management Configure the Commander switch. Doing this first helps to establish consistency in your stack configuration, which can help prevent startup problems. • A stack requires one Commander switch. If you plan to implement...

  • Page 363: Configure Stacking

    HP Procurve Stack Management Configuring Stack Management Using the Menu Interface To View Stack Status and Configure Stacking Using the Menu Interface To View and Configure a Commander Switch Configure an IP address and subnet mask on the Commander switch.

  • Page 364

    HP Procurve Stack Management Configuring Stack Management Move the cursor to the Stack State field by pressing (for ). Then Edit use the Space bar to select the option. Commander Press the downarrow key to display the Commander configuration fields in the Stack Configuration screen.

  • Page 365: Using The Menu To Manage A Candidate Switch

    HP Procurve Stack Management Configuring Stack Management Using the Menu To Manage a Candidate Switch Using the menu interface, you can perform these actions on a Candidate switch: Add (“push”) the Candidate into an existing stack Modify the Candidate’s stacking configuration (...

  • Page 366

    1 to 300 seconds. Note: All switches in the stack must be set to the same transmis- sion interval to help ensure proper stacking operation. HP recom- mends that you leave this parameter set to the default 60 seconds.

  • Page 367: Using The Commander To Manage The Stack

    HP Procurve Stack Management Configuring Stack Management Press (for ) to save your configuration changes and return to the Save Stacking menu. Using the Commander To Manage The Stack The Commander normally operates as your stack manager and point of entry into other switches in the stack.

  • Page 368

    HP Procurve Stack Management Configuring Stack Management For status descriptions, see the table on page 14-46. Figure 14-9. Example of the Stack Management Screen Press (for ) to add a Candidate. You will then see this screen listing the available Candidates: The Commander automatically selects an available switch number (SN).

  • Page 369

    HP Procurve Stack Management Configuring Stack Management • If the desired Candidate has a Manager password, press the downarrow key to move the cursor to the Candidate Password field, then type the password. • If the desired Candidate does not have a password, go to step 6.

  • Page 370

    HP Procurve Stack Management Configuring Stack Management 2. Stacking Status (All) You will then see the Stacking Status (All) screen: For status descriptions, see the table on page 14-46. This column lists the MAC Addresses for switches Using the MAC addresses for these...

  • Page 371

    HP Procurve Stack Management Configuring Stack Management Do one of the following: • If the stack containing the Member you are moving has a Manager password, press the downarrow key to select the Candidate Password field, then type the password.

  • Page 372

    HP Procurve Stack Management Configuring Stack Management To remove a Member from a stack, use the Stack Management screen. From the Main Menu, select: 9. Stacking... 4. Stack Management You will then see the Stack Management screen: For status descriptions, see the table on page 14-46.

  • Page 373: Using The Commander To Access Member Switches For Configuration Changes And Monitoring Traffic

    HP Procurve Stack Management Configuring Stack Management To continue deleting the selected Member, press the Space bar once to select for the prompt, then press to complete the deletion. The [Enter] Stack Management screen updates to show the new stack Member list.

  • Page 374: Another Stack

    HP Procurve Stack Management Configuring Stack Management Main Menu for stack Member named "Coral Sea" (SN = 1 from figure 14-16) Figure 14-17. The eXecute Command Displays the Console Main Menu for the Selected Stack Member You can now make configuration changes and/or view status data for the selected Member in the same way that you would if you were directly connected or telnetted into the switch.

  • Page 375: Monitoring Stack Status

    HP Procurve Stack Management Configuring Stack Management Press (for Back) to return to the Stacking Menu. To display Stack Configuration menu for the switch you are moving, select 3. Stack Configuration Press (for Edit) to select the Stack State parameter.

  • Page 376

    HP Procurve Stack Management Configuring Stack Management Using Any Stacked Switch To View the Status for All Switches with Stacking Enabled. This procedure displays the general status of all switches in the IP subnet (broadcast domain) that have stacking enabled.

  • Page 377

    HP Procurve Stack Management Configuring Stack Management You will then see the Commander’s Stacking Status screen: Figure 14-19. Example of the Commander’s Stacking Status Screen Viewing Member Status. This procedure displays the Member’s stacking information plus the Commander’s status, IP address, and MAC address.

  • Page 378

    HP Procurve Stack Management Configuring Stack Management Figure 14-20. Example of a Member’s Stacking Status Screen Viewing Candidate Status. This procedure displays the Candidate’s stacking configuration. To display the status for a Candidate: Use Telnet (if the Candidate has a valid IP address for your network) or...

  • Page 379: Using The Cli To View Stack Status And Configure Stacking

    HP Procurve Stack Management Configuring Stack Management Using the CLI To View Stack Status and Configure Stacking The CLI enables you to do all of the stacking tasks available through the menu interface.) Table 14-6. CLI Commands for Configuring Stacking on a Switch...

  • Page 380

    HP Procurve Stack Management Configuring Stack Management CLI Command Operation [no] stack member Commander: Adds a Candidate to stack membership. “No” form removes a Member from stack membership. To easily determine the MAC address of a <switch-num> Candidate, use the show stack candidates command. To determine the MAC mac-address <mac-addr>...

  • Page 381: Using The Cli To View Stack Status

    HP Procurve Stack Management Configuring Stack Management Using the CLI To View Stack Status You can list the stack status for an individual switch and for other switches that have been discovered in the same subnet. Syntax: show stack [candidates | view | all] Viewing the Status of an Individual Switch.

  • Page 382

    HP Procurve Stack Management Configuring Stack Management Viewing the Status of all Stack-Enabled Switches Discovered in the IP Subnet. The next example lists all the stack-configured switches discovered in the IP subnet. Because the Series 4100GL switches on which the show stack all command was executed is a candidate, it is included in the “Others”...

  • Page 383: Using The Cli To Configure A Commander Switch

    HP Procurve Stack Management Configuring Stack Management Using the CLI To Configure a Commander Switch You can configure any stacking-enabled switch to be a Commander as long as the intended stack name does not already exist on the broadcast domain.

  • Page 384

    Syntax: no stack stack commander <stack name> Suppose, for example, that an HP switch named “Bering Sea” is a Member of a stack named “Big_Waters”. To use the switch’s CLI to convert it from a stack Member to the Commander of a new stack named “Lakes”, you would use the...

  • Page 385: Adding To A Stack Or Moving Switches Between Stacks

    HP Procurve Stack Management Configuring Stack Management The output from this command tells you the MAC address of the current stack Commander. Removes the Member from the “Big_Waters” stack. Converts the former Member to the Com- mander of the new “Lakes”...

  • Page 386

    HP Procurve Stack Management Configuring Stack Management Using the Commander’s CLI To Manually Add a Candidate to the Stack. To manually add a candidate, you will use: A switch number (SN) to assign to the new member. Member SNs range from 1 to 15.

  • Page 387

    HP Procurve Stack Management Configuring Stack Management For example, if the HP 8000M in the above listing did not have a Manager password and you wanted to make it a stack Member with an , you would execute the following command:...

  • Page 388

    HP Procurve Stack Management Configuring Stack Management The Candidate’s Auto Join is set to Yes (and you do not want to enable Auto Grab on the Commander) or the Candidate’s Auto Join is set to No. Either you know the MAC address of the Commander for the stack into which you want to insert the Candidate, or the Candidate has a valid IP address and is operating in your network.

  • Page 389

    HP Procurve Stack Management Configuring Stack Management Syntax: stack member <switch-number> mac-address <mac-addr> [password<password-str>] In the destination Commander, use show stack all to find the MAC address of the Member you want to pull into the destination stack. For example, suppose you created a new Commander with a stack name of “Cold_Waters”...

  • Page 390: Using The Cli To Remove A Member From A Stack

    HP Procurve Stack Management Configuring Stack Management Syntax: no stack name <stack name> stack join <mac-address> If you don’t know the MAC address of the destination Commander, you can to identify it. show stack all For example, suppose you have a Series 4100GL switch operating as the Commander for a temporary stack named “Test”.

  • Page 391

    HP Procurve Stack Management Configuring Stack Management Syntax: [no] stack member <switch-num> mac-address <mac-addr> Use show stack view to list the stack Members. For example, suppose that you wanted to use the Commander to remove the “North Sea” Member from the...

  • Page 392: Changes And Traffic Monitoring

    HP Procurve Stack Management Configuring Stack Management You would then execute this command in the “North Sea” switch’s CLI to remove the switch from the stack: North Sea(config)# no stack join 0030c1-7fec40 Using the CLI To Access Member Switches for Configuration...

  • Page 393: Snmp Community Operation In A Stack

    HP Procurve Stack Management Configuring Stack Management SNMP Community Operation in a Stack Community Membership In the default stacking configuration, when a Candidate joins a stack, it automatically becomes a Member of any SNMP community to which the Commander belongs, even though any community names configured in the Commander are not propagated to the Member’s SNMP Communities listing.

  • Page 394: Using The Cli To Disable Or Re-enable Stacking, Transmission Interval

    (Enables stacking on the switch.) Transmission Interval All switches in the stack must be set to the same transmission interval to help ensure proper stacking operation. HP recommends that you leave this param- eter set to the default 60 seconds. stack transmission-interval <seconds>...

  • Page 395: Web: Viewing And Configuring Stacking

    HP Procurve Stack Management Configuring Stack Management Stacking uses only the primary VLAN on each switch in a stack. The primary VLAN can be tagged or untagged as needed in the stacking path from switch to switch. The same VLAN ID (VID) must be assigned to the primary VLAN in each stacked switch.

  • Page 396: Status Messages

    HP Procurve Stack Management Configuring Stack Management Status Messages Stacking screens and listings display these status messages: Message Condition Action or Remedy Candidate Auto-join Indicates a switch configured with Stack State set to None required Candidate, Auto Join set to Yes (the default), and no Manager password.

  • Page 397

    CLI: Switch-To-Switch Downloads ..... . . A-10 Using the HP TopTools for Hubs & Switches Utility ... . A-11 Troubleshooting TFTP Downloads .

  • Page 398

    Chapter 5, “Switch Memory and Configuration”. Downloading an Operating System (OS) HP periodically provides switch operating system (OS) updates through the HP Procurve website (http://www.hp.com/go/hpprocurve). For more informa- tion, see the support and warranty booklet shipped with the switch. After you...

  • Page 399: Using Tftp To Download An Os Image From A Server

    This procedure assumes that: An OS file for the switch has been stored on a TFTP server accessible to the switch. (The OS file is typically available from the HP Procurve website at http://www.hp.com/go/hpprocurve.) The switch is properly connected to your network and has already been configured with a compatible IP address and subnet mask.

  • Page 400: Menu: Tftp Download From A Server To Primary Flash

    File Transfers Downloading an Operating System (OS) Menu: TFTP Download from a Server to Primary Flash Note that the menu interface accesses only the primary flash. In the console Main Menu, select Download OS to display this screen: Figure A-1. Example of the Download OS Screen (Default Values) (for Edit).

  • Page 401: Secondary Flash

    File Transfers Downloading an Operating System (OS) A “progress” bar indicates the progress of the download. When the entire OS file has been received, all activity on the switch halts and you will see Validating and writing system software to FLASH... After the primary flash memory has been updated with the new operating system, you must reboot the switch to implement the newly downloaded OS.

  • Page 402: Workstation

    File Transfers Downloading an Operating System (OS) Execute copy as shown below: This message means that the image you Dynamic counter continually displays the want to upload will replace the image number of bytes transferred. currently in primary flash. Figure A-3. Example of the Command to Download an OS When the switch finishes downloading the OS file from the server, it displays this progress message: Validating and Writing System Software to FLASH .

  • Page 403: Menu: Xmodem Download To Primary Flash

    File Transfers Downloading an Operating System (OS) The terminal emulator you are using includes the Xmodem binary transfer feature. (For example, in the HyperTerminal application included with Windows NT, you would use the Send File option in the Transfer dropdown menu.) Menu: Xmodem Download to Primary Flash Note that the menu interface accesses only the primary flash.

  • Page 404: Primary Or Secondary Flash

    File Transfers Downloading an Operating System (OS) CLI: Xmodem Download from a PC or Unix Workstation to Primary or Secondary Flash Using Xmodem and a terminal emulator, you can download an OS image to either primary or secondary flash. Syntax: copy xmodem flash [<primary | secondary>] Note that if you do not specify the flash destination, the Xmodem download defaults to primary flash.

  • Page 405: Switch-to-switch Download

    File Transfers Downloading an Operating System (OS) If you need information on primary/secondary flash memory and the boot commands, see “Using Primary and Secondary Flash Image Options” on page 5-12. Switch-to-Switch Download You can use TFTP to transfer an OS image between two Series 4100GL switchess.

  • Page 406: Cli: Switch-to-switch Downloads

    File Transfers Downloading an Operating System (OS) To confirm that the operating system downloaded correctly: From the Main Menu, select Status and Counters General System Information b. Check the Firmware revision line. CLI: Switch-To-Switch Downloads You can download an OS image between two Series 4100GL switchess con- nected on your LAN by initiating a copy tftp command from the destination switch.The options for this CLI feature include: Copy from primary flash in the source to either primary or secondary in...

  • Page 407: Using The Hp Toptools For Hubs & Switches Utility

    HP TopTools for Hubs & Switches includes a software update utility for updating on HP ProCurve switch products such as the Series 4100GL switches. For further information, refer to the HP TopTools for Hubs & Switches User Guide, provided electronically with the HP TopTools software.

  • Page 408: Troubleshooting Tftp Downloads

    File Transfers Troubleshooting TFTP Downloads Troubleshooting TFTP Downloads When using the menu interface, if a TFTP download fails, the Download OS screen indicates the failure. Message Indicating cause of TFTP Download Failure Figure A-6. Example of Message for Download Failure To find more information on the cause of a download failure, examine the messages in the switch’s Event Log by executing this CLI command: HPswitch# show log tftp...

  • Page 409: Transferring Switch Configurations

    File Transfers Transferring Switch Configurations For a Unix TFTP server, the file permissions for the OS file do not allow the file to be copied. Another console session (through either a direct connection to a terminal device or through Telnet) was already running when you started the session in which the download was attempted.

  • Page 410

    File Transfers Transferring Switch Configurations TFTP: Copying a Configuration File to a Remote Host. copy <startup-config | running-config> tftp <ip-addr> <remote-file> Syntax: This command copies the switch’s startup configuration (startup-config file) to a remote TFTP host. For example, to upload the current startup configuration to a file named sw4100 in the configs directory on drive "d"...

  • Page 411

    File Transfers Transferring Switch Configurations Xmodem: Copying a Configuration File from a Serially Connected PC or Unix Workstation. To use this method, the switch must be connected via the serial port to a PC or Unix workstation on which is stored the configuration file you want to copy.

  • Page 412: Unix Workstation

    File Transfers Copying Diagnostic Data to a Remote Host, PC, or Unix Workstation Copying Diagnostic Data to a Remote Host, PC, or Unix Workstation You can use the CLI to copy the following types of switch data to a text file in a management device: Command Output: Sends the output of a switch CLI command as a file on the destination device.

  • Page 413: Copying Event Log Output To A Destination Device

    File Transfers Copying Diagnostic Data to a Remote Host, PC, or Unix Workstation Copying Event Log Output to a Destination Device This command uses TFTP or Xmodem to copy the Event Log content to a PC or UNIX workstation on the network. copy event-log tftp <ip-address>...

  • Page 414: Copying Crash Log Data Content To A Destination Device

    File Transfers Copying Diagnostic Data to a Remote Host, PC, or Unix Workstation Copying Crash Log Data Content to a Destination Device This command uses TFTP or Xmodem to copy the Crash Log content to a PC or UNIX workstation on the network. You can copy individual slot information or the master switch information.

  • Page 415

    Monitoring and Analyzing Switch Operation Contents Overview ........... . B-2 Status and Counters Data .

  • Page 416

    Monitoring and Analyzing Switch Operation Overview Overview The Switch 4108GL has several built-in tools for monitoring, analyzing, and troubleshooting switch and network operation: Status: Includes options for displaying general switch information, man- agement address data, port status, port and trunk group statistics, MAC addresses detected on each port or VLAN, and STP, IGMP, and VLAN data (page B-3).

  • Page 417: Status And Counters Data

    Monitoring and Analyzing Switch Operation Status and Counters Data Status and Counters Data This section describes the status and counters screens available through the switch console interface and/or the web browser interface. N o t e You can access all console screens from the web browser interface via Telnet to the console.

  • Page 418: Menu Access To Status And Counters

    Monitoring and Analyzing Switch Operation Status and Counters Data Menu Access To Status and Counters Beginning at the Main Menu, display the Status and Counters menu by select- ing: 1. Status and Counters Figure B-1. The Status and Counters Menu Each of the above menu items accesses the read-only screens described on the following pages.

  • Page 419: General System Information

    Monitoring and Analyzing Switch Operation Status and Counters Data General System Information Menu Access From the console Main Menu, select: 1. Status and Counters 1. General System Information Figure B-2. Example of General Switch Information This screen dynamically indicates how individual switch resources are being used.

  • Page 420: Switch Management Address Information

    Monitoring and Analyzing Switch Operation Status and Counters Data Switch Management Address Information Menu Access From the Main Menu, select: 1 Status and Counters . . . 2. Switch Management Address Information Figure B-3. Example of Management Address Information with VLANs Configured This screen displays addresses that are important for management of the switch.

  • Page 421: Module Information

    Monitoring and Analyzing Switch Operation Status and Counters Data Module Information Use this feature to determine which slots have modules installed and which type(s) of modules are installed. Menu: Displaying Port Status From the Main Menu, select: 1. Status and Counters . . . 3.

  • Page 422

    Monitoring and Analyzing Switch Operation Status and Counters Data Port Status The web browser interface and the console interface show the same port status data. Menu: Displaying Port Status From the Main Menu, select: 1. Status and Counters . . . 4.

  • Page 423: Viewing Port And Trunk Group Statistics And Flow Control Status

    Monitoring and Analyzing Switch Operation Status and Counters Data Viewing Port and Trunk Group Statistics and Flow Control Status Feature Default Menu viewing port and trunk statistics for all page B-10 page B-11 page B-11 ports, and flow control status viewing a detailed summary for a page B-10 page B-11...

  • Page 424: Menu Access To Port And Trunk Statistics

    Monitoring and Analyzing Switch Operation Status and Counters Data Menu Access to Port and Trunk Statistics To access this screen from the Main Menu, select: 1. Status and Counters . . . 4. Port Counters Figure B-6. Example of Port Counters on the Menu Interface To view details about the traffic on a particular port, use the [v] key to highlight that port number, then select Show Details.

  • Page 425: Cli Access To Port And Trunk Group Statistics

    Monitoring and Analyzing Switch Operation Status and Counters Data CLI Access To Port and Trunk Group Statistics To Display the Port Counter Summary Report. This command provides an overview of port activity for all ports on the switch. show interfaces Syntax: To Display a Detailed Traffic Summary for Specific Ports.

  • Page 426: Viewing The Switch's Mac Address Tables

    Monitoring and Analyzing Switch Operation Status and Counters Data Viewing the Switch’s MAC Address Tables Feature Default Menu viewing MAC addresses on all page B-13 page B-15 — ports on a specific VLAN viewing MAC addresses on a page B-14 page B-15 —...

  • Page 427: Menu Access To The Mac Address Views And Searches

    Monitoring and Analyzing Switch Operation Status and Counters Data Menu Access to the MAC Address Views and Searches Per-VLAN MAC-Address Viewing and Searching. This feature lets you determine which switch port on a selected VLAN is being used to communi- cate with a specific device on the network.

  • Page 428

    Monitoring and Analyzing Switch Operation Status and Counters Data Finding the Port Connection for a Specific Device on a VLAN. This feature uses a device’s MAC address that you enter to identify the port used by that device. (for Search), to display the following Proceeding from figure B-8, press prompt: Enter MAC address: _...

  • Page 429: Cli Access For Mac Address Views And Searches

    Monitoring and Analyzing Switch Operation Status and Counters Data Prompt for Selecting the Port To Search Figure B-10. Listing MAC Addresses for a Specific Port Use the Space bar to select the port you want to list or search for MAC addresses, then press to list the MAC addresses detected on that port.

  • Page 430

    Monitoring and Analyzing Switch Operation Status and Counters Data Corresponding Port Numbers. For example, to list the learned MAC address on ports A1 through A4 and port A6: HPswitch> show mac-address a1-a4,a6 To List All Learned MAC Addresses on a VLAN, with Their Port Numbers.

  • Page 431: Spanning Tree Protocol (stp) Information

    Monitoring and Analyzing Switch Operation Status and Counters Data Spanning Tree Protocol (STP) Information Menu Access to STP Data From the Main Menu, select: 1. Status and Counters . . . 8. Spanning Tree Information STP must be enabled on the switch to display the following data: Figure B-12.

  • Page 432: Cli Access To Stp Data

    Monitoring and Analyzing Switch Operation Status and Counters Data Figure B-13. Example of STP Port Information CLI Access to STP Data This option lists the STP configuration, root data, and per-port data (cost, priority, state, and designated bridge). show spanning-tree Syntax: HP4100>...

  • Page 433: Internet Group Management Protocol (igmp) Status

    Monitoring and Analyzing Switch Operation Status and Counters Data Internet Group Management Protocol (IGMP) Status The switch uses the CLI to display the following IGMP status on a per-VLAN basis: Show Command Output show ip igmp Global command listing IGMP status for all VLANs configured in the switch: •...

  • Page 434: Vlan Information

    Monitoring and Analyzing Switch Operation Status and Counters Data VLAN Information The switch uses the CLI to display the following VLAN status: Show Command Output show vlan Lists: • Maximum number of VLANs to support • Existing VLANs • Status (static or dynamic) •...

  • Page 435

    Monitoring and Analyzing Switch Operation Status and Counters Data Listing the VLAN ID (VID) and Status for Specific Ports. Because ports A1 and A2 are not members of VLAN- 44, it does not appear in this listing. Figure B-16. Example of VLAN Listing for Specific Ports Listing Individual VLAN Status.

  • Page 436: Web Browser Interface Status Information

    Alert Log, which informs you of any problems that may have occurred on the switch. For more information on this screen, see chapter 4, ‘Using the HP Web Browser Interface’. Port...

  • Page 437: Port And Static Trunk Monitoring Features

    Monitoring and Analyzing Switch Operation Port and Static Trunk Monitoring Features Port and Static Trunk Monitoring Features Port Monitoring Features Feature Default Menu display monitoring disabled page B-24 page B-26 page B-28 configuration configure the monitor port(s) ports: none page B-24 page B-26 page B-28 selecting or removing ports none selected page B-24 page B-27 page B-28 You can designate a port for monitoring incoming traffic of other ports and of...

  • Page 438: Menu: Configuring Port And Static Trunk Monitoring

    Monitoring and Analyzing Switch Operation Port and Static Trunk Monitoring Features Menu: Configuring Port and Static Trunk Monitoring This procedure describes configuring the switch for monitoring when moni- toring is disabled. (If monitoring has already been enabled, the screens will appear differently than shown in this procedure.) From the Console Main Menu, Select: 2.

  • Page 439

    Monitoring and Analyzing Switch Operation Port and Static Trunk Monitoring Features Move the cursor to the Monitoring Port parameter. Inbound Port and Trunk Monitoring (Only) on the Switch 4108 Figure B-20. How To Select a Monitoring Port Use the Space bar to select the port to use for monitoring. Use the downarrow key to move the cursor to the Action column for the individual ports and position the cursor at a port you want to monitor.

  • Page 440: Cli: Configuring Port And Static Trunk Monitoring

    Monitoring and Analyzing Switch Operation Port and Static Trunk Monitoring Features CLI: Configuring Port and Static Trunk Monitoring Port and Static Trunk Monitoring Commands Used in This Section show monitor below mirror-port page B-26 monitor page B-27 You must use the following configuration sequence to configure port and static trunk monitoring in the CLI: Assign a monitoring (mirror) port.

  • Page 441

    Monitoring and Analyzing Switch Operation Port and Static Trunk Monitoring Features To turn off monitoring: HPswitch(config)# no mirror-port Selecting or Removing Ports and Static Trunks As Monitoring Sources. After you configure a monitor port you can use either the global configuration level or the interface context level to select ports and static trunks as monitoring sources.

  • Page 442: Web: Configuring Port Monitoring

    Monitoring and Analyzing Switch Operation Port and Static Trunk Monitoring Features Web: Configuring Port Monitoring To enable port monitoring: Click on the Configuration tab. Click on [Monitor Port] To monitor one or more ports. Click on the radio button for Monitor Selected Ports. b.

  • Page 443

    Troubleshooting Contents Overview ........... . C-2 Troubleshooting Approaches .

  • Page 444

    N o t e HP periodically places switch software updates on the HP Procurve website. HP recommends that you check this website for software updates that may have fixed a problem you are experiencing. For information on support and warranty provisions, see the Support and...

  • Page 445: Troubleshooting Approaches

    IEEE 802.3 specification. See the Installation Guide shipped with the switch for correct cable types and connector pin-outs. Use HP TopTools for Hubs & Switches (if installed on your network) to help isolate problems and recommend solutions. HP TopTools is shipped at no extra cost with the switch.

  • Page 446: Browser Or Telnet Access Problems

    Troubleshooting Browser or Telnet Access Problems Browser or Telnet Access Problems Cannot access the web browser interface: Access may be disabled by the Web Agent Enabled parameter in the switch console. Check the setting on this parameter by selecting: 2. Switch Configuration . . . 1.

  • Page 447

    Troubleshooting Browser or Telnet Access Problems Cannot Telnet into the switch console from a station on the network: Telnet access may be disabled by the Inbound Telnet Enabled parameter in the System Information screen of the menu interface: 2. Switch Configuration 1.

  • Page 448: Unusual Network Activity

    Unusual network activity is usually indicated by the LEDs on the front of the switch or measured with the switch console interface or with a network management tool such as the HP TopTools for Hubs & Switches. Refer to the Installation Guide you received with the switch for information on using LEDs to identify unusual network activity.

  • Page 449: Prioritization Problems

    Troubleshooting Unusual Network Activity This can also happen, for example, if the server is first configured to issue IP addresses with an unlimited duration, then is subsequently configured to issue IP addresses that will expire after a limited duration. One solution is to configure “reservations”...

  • Page 450: Igmp-related Problems

    Troubleshooting Unusual Network Activity remaining open link may not be a member of an untagged VLAN, or any untagged VLANs to which the port belongs may not have an IP address. The adjacent device’s CDP Neighbors table may be full. Refer to the documentation provided for the adjacent CDP device to determine the table’s capacity, and then view the device’s Neighbors table to determine whether it is full.

  • Page 451: Lacp-related Problems

    Removing a port from a trunk without first disabling the port can create a traffic loop that can slow down or halt your network. Before removing a port from a trunk, HP recommends that you either disable the port or disconnect it from the LAN.

  • Page 452

    Troubleshooting Unusual Network Activity authentication request. If the RADIUS server configuration for authenti- cating the client includes a VLAN assignment, ensure that the VLAN exists as a static VLAN on the switch. See "How 802.1x Authentication Affects VLAN Operation" in the Access Security Guide for your switch. During RADIUS-authenticated client sessions, access to a VLAN on the port used for the client sessions is lost.

  • Page 453

    Troubleshooting Unusual Network Activity Port A9 shows an "Open" status even though Access Control is set to Unauthorized (Force Auth). This is because the port-access authenticator has not yet been activated. Figure C-1. Example of a Port Remaining Open After Being Configured with "Control Unauthorized" RADIUS server fails to respond to a request for service, even though the server’s IP address is correctly configured in the switch.

  • Page 454: Radius-related Problems

    Troubleshooting Unusual Network Activity The authorized MAC address on a port that is configured for both 802.1x and port security either changes or is re-acquired after execution of aaa port-access authenticator < port-list > initialize. If the port is force-authorized with aaa port-access authenticator <port-list> control authorized command and port security is enabled on the port, then executing initialize causes the port to clear the learned address and learn a new address from the first packet it receives after you execute initialize.

  • Page 455

    Troubleshooting Unusual Network Activity Global RADIUS Encryption Key Unique RADIUS Encryption Key for the RADIUS server at 10.33.18.119 Figure C-2. Examples of Global and Unique Encryption Keys C-13...

  • Page 456: Spanning-tree Protocol (stp) And Fast-uplink Problems

    Troubleshooting Unusual Network Activity Spanning-Tree Protocol (STP) and Fast-Uplink Problems C a u t i o n If you enable STP, it is recommended that you leave the remainder of the STP parameter settings at their default values until you have had an opportunity to evaluate STP performance in your network.

  • Page 457: Ssh-related Problems

    Troubleshooting Unusual Network Activity SSH-Related Problems Switch access refused to a client. Even though you have placed the cli- ent’s public key in a text file and copied the file (using the copy tftp pub-key- file command) into the switch, the switch refuses to allow the client to have access.

  • Page 458: Stacking-related Problems

    Troubleshooting Unusual Network Activity A key in the file is too long. The maximum key length is 1024 characters, including spaces. This could also mean that two or more keys are merged together instead of being separated by a <CR><LF>. There are more than ten public keys in the key file.

  • Page 459

    Troubleshooting Unusual Network Activity Disconnect the switch from network access to any TACACS+ servers and then log in to the switch using either Telnet or direct console port access. Because the switch cannot access a TACACS+ server, it will default to local authentication. You can then use the switch’s local Operator or Manager username/password pair to log on.

  • Page 460: Timep, Sntp, Or Gateway Problems

    Troubleshooting Unusual Network Activity For more help, refer to the documentation provided with your TACACS+ server application. Unknown Users Allowed to Login to the Switch. Your TACACS+ appli- cation may be configured to allow access to unknown users by assigning them the privileges included in a default user profile.

  • Page 461

    Troubleshooting Unusual Network Activity Link Configured for Multiple VLANs Does Not Support Traffic for One or More VLANs. One or more VLANs may not be properly configured as “Tagged” or “Untagged”. A VLAN assigned to a port connecting two 802.1Q- compliant devices must be configured the same on both ports.

  • Page 462

    Troubleshooting Unusual Network Activity is moving among ports because packets with the same MAC address but different VLANs are received on different ports. You can avoid this problem by creating redundant paths using port trunks or spanning tree. MAC Address "A"; VLAN 1 Server VLAN 1 Switch with...

  • Page 463: Using The Event Log To Identify Problem Sources

    W (warning) indicates that a service has behaved unexpectedly. (critical) indicates that a severe switch error has occurred. (debug) reserved for HP internal diagnostic information. Date is the date in mm/dd/yy format that the entry was placed in the log.

  • Page 464: Menu: Entering And Navigating In The Event Log

    Troubleshooting Using the Event Log To Identify Problem Sources Table C-1. Event Log System Modules Module Event Description Module Event Description addrMgr Address table Console management chassis switch hardware ports Change in port status; static trunks bootp bootp addressing snmp SNMP communications console Console interface...

  • Page 465: Cli:

    Troubleshooting Using the Event Log To Identify Problem Sources The log status line at the bottom of the display identifies where in the sequence of event messages the display is currently positioned. To display various portions of the Event Log, either preceding or following the currently visible portion, use either the actions listed at the bottom of the display (Next page, Prev page, or End), or the keys described in the following table:...

  • Page 466: Diagnostic Tools

    Troubleshooting Diagnostic Tools Diagnostic Tools Diagnostic Features Feature Default Menu Port Autonegotiation PingTest — page C-27 page C-26 Link Test — page C-27 page C-26 Display Config File — page C-29 page C-32 Admin. and Troubleshooting — page C-33 — Commands Factory-Default Config page C-34...

  • Page 467

    Troubleshooting Diagnostic Tools N o t e To respond to a Ping test or a Link test, the device you are trying to reach must be IEEE 802.3-compliant. Ping Test. This is a test of the path between the switch and another device on the same or another IP network that can respond to IP packets (ICMP Echo Requests).

  • Page 468: Web: Executing Ping Or Link Tests

    Troubleshooting Diagnostic Tools Web: Executing Ping or Link Tests 1. Click here. 2. Click here. 3. Select Ping Test (the 4. For a Ping test, enter default) or Link Test the IP address of the target device. For a Link test, enter the MAC address of the target device.

  • Page 469: Cli: Ping Or Link Tests

    Troubleshooting Diagnostic Tools Number of Packets to Send is the number of times you want the switch to attempt to test a connection. Timeout in Seconds is the number of seconds to allow per attempt to test a connection before determining that the current attempt has failed. To halt a Link or Ping test before it concludes, click on the Stop button.

  • Page 470

    Troubleshooting Diagnostic Tools Link Tests. You can issue single or multiple link tests with varying repititions and timeout periods. The defaults are: Repetitions: 1 (1 - 999) Timeout: 5 seconds (1 - 256 seconds) link <mac-address> [repetitions <1 - 999>] [timeout <1 - 256>] Syntax: [vlan <vlan-id>] Basic Link Test...

  • Page 471: Displaying The Configuration File

    Troubleshooting Diagnostic Tools Displaying the Configuration File The complete switch configuration is contained in a file that you can browse from either the web browser interface or the CLI. It may be useful in some troubleshooting scenarios to view the switch configuration. CLI: Viewing the Configuration File Using the CLI, you can display either the running configuration or the startup configuration.

  • Page 472: Troubleshooting

    Troubleshooting Listing Switch Configuration and Operation Details for Help in Troubleshooting Listing Switch Configuration and Operation Details for Help in Troubleshooting Release G.04.05 and greater includes the show tech command. This command outputs, in a single listing, switch operating and running configuration details from several internal switch sources, including: Image stamp (software version data) Running configuration...

  • Page 473

    Troubleshooting Listing Switch Configuration and Operation Details for Help in Troubleshooting In Hyperterminal, click on Transfer Capture Text... Figure C-10. The Capture Text window of the Hypertext Application Used with Microsoft Windows Software In the field, enter the path and file name under which you want to store File output.

  • Page 474: Web: Viewing The Configuration File

    Troubleshooting Listing Switch Configuration and Operation Details for Help in Troubleshooting Web: Viewing the Configuration File To display the running configuration, through the web browser interface: Click on the Diagnostics tab. Click on [Configuration Report] Use the right-side scroll bar to scroll through the configuration listing. C-32...

  • Page 475: Cli Administrative And Troubleshooting Commands

    Troubleshooting Listing Switch Configuration and Operation Details for Help in Troubleshooting CLI Administrative and Troubleshooting Commands These commands provide information or perform actions that you may find helpful in troubleshooting operating problems with the switch. N o t e For more on the CLI, refer to chapter 3, "Using the Command Line Reference (CLI).

  • Page 476: Restoring The Factory-default Configuration

    Clear/Reset button combination N o t e HP recommends that you save your configuration to a TFTP server before resetting the switch to its factory-default configuration. You can also save your configuration via Xmodem, to a directly connected PC.

  • Page 477: Restoring A Flash Image

    Troubleshooting Restoring a Flash Image Restoring a Flash Image The switch can lose its operating system if either the primary or secondary flash image location is empty or contains a corrupted OS file and an operator uses the erase flash command to erase a good OS image file from the opposite flash location.

  • Page 478

    Troubleshooting Restoring a Flash Image Since the OS file is larage, you can increase the speed of the download by changing the switch console and terminal emulator baud rates to a high speed. For example: Change the switch baud rate to 115,200 Bps. =>...

  • Page 479

    Troubleshooting Restoring a Flash Image Figure C-12. Example of Xmodem Download in Progress When the download completes, the switch reboots from primary flash using the OS image you downloaded in the preceding steps, plus the most recent startup-config file. C-37...

  • Page 480

    Troubleshooting Restoring a Flash Image C-38...

  • Page 481: Mac Address Management

    MAC Address Management Overview The switch assigns MAC addresses in these areas: For management functions: • One Base MAC address assigned to the default VLAN (VID = 1) • Additional MAC address(es) corresponding to additional VLANs you configure in the switch For internal switch operations: One MAC address per port (See "CLI: Viewing the Port and VLAN MAC Addresses"...

  • Page 482: Determining Mac Addresses

    MAC Address Management Determining MAC Addresses Determining MAC Addresses MAC Address Viewing Methods Feature Default Menu view switch’s base (default vlan) MAC address — and the addressing for any added VLANs view port MAC addresses (hexadecimal format) — — Use the menu interface to view the switch’s base MAC address and the MAC address assigned to any non-default VLAN you have configured on the switch.

  • Page 483: Menu: Viewing The Switch's Mac Addresses

    MAC Address Management Determining MAC Addresses Menu: Viewing the Switch’s MAC Addresses The Management Address Information screen lists the MAC addresses for: Base switch (default VLAN; VID = 1) Any additional VLANs configured on the switch. Also, the Base MAC address appears on a label on the back of the switch. N o t e The Base MAC address is used by the first (default) VLAN in the switch.

  • Page 484: Cli: Viewing The Port And Vlan Mac Addresses

    MAC Address Management Determining MAC Addresses CLI: Viewing the Port and VLAN MAC Addresses The MAC address assigned to each switch port is used internally by such features as Flow Control and the Spanning Tree Protocol. Using the walkmib command to determine the MAC address assignments for individual ports can sometimes be useful when diagnosing switch operation.

  • Page 485

    MAC Address Management Determining MAC Addresses ifPhysAddress.1 - 6: Ports A1 - A6 in Slot 1 (Addresses 7 - 24 in slot 1 and 25 - 48 in slot 2 are unused.) ifPhysAddress.49 - 51: Ports C1 - C3 in Slot 3 (Addresses 52 - 72 in slot 3 are unused.) ifPhysAddress.205 Base MAC Address (MAC...

  • Page 486

    MAC Address Management Determining MAC Addresses...

  • Page 487

    • 8000M • 5308XL HP Procurve switches provide a way to automatically adjust the system clock for Daylight Savings Time (DST) changes. To use this feature you define the month and date to begin and to end the change from standard time. In addition to the value "none"...

  • Page 488

    Daylight Savings Time on HP Procurve Switches Middle Europe and Portugal: • Begin DST at 2am the first Sunday on or after March 25th. • End DST at 2am the first Sunday on or after September 24th. Southern Hemisphere: •...

  • Page 489

    Daylight Savings Time on HP Procurve Switches Before configuring a "User defined" Daylight Time Rule, it is important to understand how the switch treats the entries. The switch knows which dates are Sundays, and uses an algorithm to determine on which date to change the system clock, given the configured "Beginning day"...

  • Page 491

    Index Symbols => prompt … C-35 bandwidth displaying utilization … 4-16 blocked link from STP operation … 13-5 Numerics blocked port 802.1Q VLAN standard … 13-3 from IGMP operation … 12-5 802.3u auto negotiation standard … 9-3 from STP operation … 13-4 boot ROM console …...

  • Page 492

    on individual ports … 10-23 transferring … A-13 overview of operation … 10-13 trap receivers … 10-8 port trunking … 10-28 viewing … 5-5 requirements … 10-13 VLAN … 11-3 terminology … 10-14 web browser access … 6-3 transmission interval … 10-24 configuration file transparent devices …...

  • Page 493

    download, TFTP … A-3, A-4 format, date … C-21 downstream device (QoS) format, time … C-21 effect of priority settings … 9-34 forwarding port, IGMP … 12-5 duplicate MAC address friendly port names See MAC address. See port names, friendly. Dyn1 See LACP.

  • Page 494

    … 4-5 HP TopTools web access … 7-9 See TopTools. IP preserve HP web browser interface … 1-5 DHCP server … 7-14 overview … 7-14 rules, operating … 7-14 summary of effect … 7-17 ICANN … 7-18 IP, for SNMP …...

  • Page 495

    STP … 9-29 MIB … 10-3 VLANs … 9-29 MIB listing … 10-3 with 802.1x … 9-28 MIB, HP proprietary … 10-3 with port security … 9-28 MIB, standard … 10-3 LACP, with CDP … 10-28 Microsoft Internet Explorer … 4-4 learning bridge …...

  • Page 496

    port security port trunk restriction … 9-11 password … 4-8, 4-10 trunk restriction … 9-15 creating … 4-8 port trunk … 9-10 delete … 2-7, 4-11 caution … 9-11, 9-16, 9-24 if you lose the password … 4-11 CLI access … 9-18 lost …...

  • Page 497

    See VLAN. edge-port parameter … 13-14 priority … 12-5 enabling from CLI … 13-11 Procurve, HP, URL … 10-3 enabling from the menu … 13-16 prompt, => … C-35 enabling with the web browser … 13-18 public SNMP community … 10-4 mcheck parameter …...

  • Page 498

    … C-15 sorting alert log entries … 4-19 stacking spanning tree benefits … 14-3, 14-4 802.1Q standard … 13-3 minimum software version, other HP blocked link … 13-5 switches … 14-9 blocked port … 13-4 primary … 14-45 BPDU … 13-3 standard MIB …...

  • Page 499

    … 10-2 URL … 4-13 traffic monitoring … 10-2, 10-4 browser interface online help location … 4-13 traffic, monitoring … B-23 HP Procurve … 4-13 traffic, port … B-9 management … 4-13 transceiver, fiber-optic … 9-4 management server … 4-12, 4-13 transceiver, speed change …...

  • Page 500

    URL, HP Procurve … 10-3 primary … 7-3, 11-7, 14-9, 14-33, 14-45 user name, using for browser or console access … 4- primary VLAN … 11-6 8, 4-10 primary, CLI command … 11-16, 11-18 using the passwords … 4-10 primary, select in menu … 11-11 utilization, port …...

  • Page 501

    URL, management server … 4-14 URL, support … 4-14 web browser interface, for configuring IGMP … 12-10 STP … 13-41 web site, HP … 10-3 world wide web site, HP See HP Procurve. write access … 10-4 write memory … 11-47 write memory, effect on menu interface …...

  • Page 502

    12 – Index...

  • Page 504

    Technical information in this document is subject to change without notice. ©Copyright Hewlett-Packard Company 2002. All right reserved. Reproduction, adaptation, or translation without prior written permission is prohibited except as allowed under the copyright laws. Produced in Singapore Edition 2, May 2002 Manual Part Number 5990-3007 *5990-3007*...

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