HP 10Base-T Hub 24M Manual
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HP 10Base-T Hub 24M Manual

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Summary of Contents for HP 10Base-T Hub 24M

  • Page 1 HP 10Base-T Hubs Management and Configuration HP 10Base-T Hub 12M HP 10Base-T Hub 24M For world-wide support on all HP Network Connectivity Products visit our web site at: http://www.hp.com/go/network_city Less Work, More Network...
  • Page 2 HP 10Base-T Hubs Management and Configuration...
  • Page 3 Microsoft Corporation. Internet Explorer is a trademark of Hewlett-Packard products and replacement parts can be Microsoft Corporation. Ethernet is a registered trademark obtained from your HP Sales and Service Office or autho- of Xerox Corporation. Netscape is a registered trademark rized dealer.
  • Page 4 Product information Support contacts Your HP Reseller can help, too! Be sure to talk to your reseller about the support services they offer for your HP networking products. Other HP Electronic Support Services If you don’t have World Wide Web access, these sources provide firmware, drivers, and technical information.
  • Page 5 HP FIRST Fax Retrieval Service HP FIRST is an automated fax retrieval service that is available 24 hours a day, seven days a week. HP FIRST provides a variety of product and technical information. To access HP FIRST, dial one of the following telephone numbers: In the U.S.

  • Page 6: Table Of Contents

    Advantages of Using the Hub Console Interface ....1-2 HP AdvanceStack Assistant ....... 1-3 2 Running the Hub Console Overview of the Hub Console .
  • Page 7 Understanding the Browser Interface Environment ....4-7 Understanding the Overview Window ..... . . 4-7 The Gauges Area .
  • Page 8 Management Access Configuration Menu..... . . 6-30 IP Configuration ..........6-32 Setting an IP Address in the Browser Interface .
  • Page 9 Ping Test ..........6-93 Running a Ping Test in the Browser Interface .

  • Page 10: About Hub Management Interfaces

    Browser Interface and the hub console. For coverage of HP AdvanceStack Assistant (ASA), see the HP AdvanceStack Assistant User’s Guide or the online help available with that product. HP ASA comes on a separate CD-ROM with the HP 10Base-T Hubs that have built-in...

  • Page 11: Advantages Of Using The Browser Interface

    About Hub Management Interfaces Advantages of Using the Browser Interface The following are advantages of using the Browser Interface: easy access of the hub from anywhere on the network, if you know the device IP address familiar browser interface--locations of window objects consistent with known standard faster configuration, avoiding cycling through a series of prompts—...

  • Page 12: Hp Advancestack Assistant

    HP AdvanceStack Assistant The manageable HP 10Base-T Hubs enable you to use HP AdvanceStack Assistant (HP ASA). Operate HP ASA from a PC on the network to monitor traffic and manager your hubs and switches. Easy to install and use, HP ASA (formerly HP Interconnect Manager) is the answer to your management challenges.

  • Page 14: Running The Hub Console

    Running the Hub Console This chapter describes the following topics: overview of the hub console starting a hub console session • through a direct out-of-band serial connection • through a modem out-of-band serial connection • through an in-band Telnet connection using the hub console •...

  • Page 15: Starting A Hub Console Session

    Running the Hub Console Overview of the Hub Console The hub console interface enables you use a PC, running a terminal emulator, or a standard ASCII terminal to do the following: modify the hub’s configuration configure the hub with an IP address that enables the hub to be managed from an SNMP-based network management station, through the hub’s Browser Interface, described in chapter 4, “Running the Browser Inter- face”, or through Telnet access to the console interface.

  • Page 16: Starting A Session Through A Direct Serial Connection

    Console port on the hub using the serial cable supplied with your hub. (For pin-outs on the cable and Console port connector, see the Cables and Connectors appendix in the HP 10Base-T Hubs Installa- tion Guide.) If the PC or terminal has a 25-pin serial connector, first attach a 9-pin to 25-pin “straight-through”...

  • Page 17: Starting A Session Through A Modem Connection

    To establish a remote session, using a pair of modems and terminal, follow these steps: Use full-duplex, asynchronous (character-mode) modems only. For the list of supported modems and their initialization strings, go to the HP networking products web page, http://www.hp.com/go/network_city. Then, select Support and from the Support page, select 10Base-T hubs.

  • Page 18: Starting A Session Through A Telnet Connection

    Running the Hub Console Starting a Session Through a Telnet Connection The HP 10Base-T Hubs support accessing the hub console over Telnet. N o t e Running a Telnet session with the hub requires that the hub first be configured with an IP address.

  • Page 19: Using The Hub Console

    Running the Hub Console Using the Hub Console The hub console is an easy to use, intuitive interface that prompts you for input and guides you through any configuration. The hub console consists of two regions as described in the next section. The Console’s Two Regions The hub console interface has two regions: the Command Prompt region which you enter at first.

  • Page 20: The Command Prompt Region

    Running the Hub Console The Command Prompt Region The => prompt indicates you are at the command prompt region of the hub console. This region is a command-driven environment that enables you to perform several basic tasks. The tasks are performed by entering two-letter commands.

  • Page 21: The Console Menu System

    Running the Hub Console The Console Menu System The hub console menu system starts at the Main Menu, which contains access to the top level menus for the program. The top level menus contain all the necessary options, grouped by common topic. These menus enable you to perform a number of tasks, including: viewing hub and port counter statistics configuring access settings...

  • Page 22: Responding To An Enter Username Prompt

    Running the Hub Console Responding to an Enter username prompt If the interface displays an Enter username prompt, you need to provide proper device access strings to reach the Command Prompt (=>). To reach the Command Prompt, perform the following steps: Type in the string required at the Enter username prompt and press [Enter].
  • Page 23 Running the Hub Console Figure 2-3. A Password Issuing Session N o t e If you cannot retrieve either the hub’s username or password, you can remove it by pressing and holding the Clear button on the hub for 10 seconds. Once you have removed the password, you can issue commands in the Command Prompt region or enter the hub’s console interface Menu System.

  • Page 24: Setting An Ip Address For The Hub

    Communication Between the Hub and Network Management Station The manageable HP 10Base-T Hubs can be managed over the network by both a World Wide Web browser application and a network management software application that complies with the Simple Network Management Protocol (SNMP) standard and has standard SNMP MIB-browser functionality.

  • Page 25: Globally Assigned Ip Network Addresses

    Setting an IP Address for the Hub 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 26: Ways Of Setting An Ip Address

    Once you have set the IP address in the console, you can change it either in the console, Browser Interface, or HP ASA. For the Browser Interface, see the reference pages for IP Configuration in chapter 6. For the For ASA, see...

  • Page 27: Manually Setting An Ip Address From The Hub Console

    Setting an IP Address for the Hub Manually Setting an IP Address from the Hub Console To configure the hub with an IP address:. Start a hub console session and at the prompt, enter ME to access the menu system region. From the Main Menu, enter 2 to display the Management Access Configuration screen.
  • Page 28 Interface, or through HP ASA or other network management tools. To find out how to run the Browser Interface, see chapter 4, “Running the Browser Interface”. For details on how to manage your hub from HP ASA or HP OpenView, see the online help in those applications.

  • Page 29: Automatically Acquiring An Ip Address Using Bootp/Dhcp

    Bootp/DHCP reply. For most UNIX systems, the Bootp table is contained in the /etc/bootptab file. BOOTP Table File Entries. An entry in the BOOTP table file for an HP 10Base-T Hub-24M would be similar to the /etc/bootptab following: hphub24M:\...
  • Page 30 If you have multiple hubs that will be using BOOTP to get their IP configuration, you should use a unique symbolic name for each hub. is the “hardware type” tag. For the HP 10Base-T hubs, set this to ether (for Ethernet). This tag must precede the ha tag.

  • Page 32: Running The Browser Interface

    Running the Browser Interface This chapter details use of the Browser Interface. The following areas are covered: system requirements to run the Browser Interface places where you can run the Browser Interface establishing a Browser Interface session working with your first Browser Interface session creating usernames and passwords in the Browser Interface understanding the Browser Interface environment understanding the Gauges Area...
  • Page 33 Console Interface, it can be run using less connection types. You can begin a Browser Interface session in the hub in the following ways: directly, using an in-band network connection directly, using either a network cable or serial cable, running HP AdvanceStack Assistant on a management station Establishing a Browser Interface Session To establish a Browser Interface session, perform the following steps: Launch your Web Browser.
  • Page 34 Running the Browser Interface Working with Your First Browser Interface Session Upon accessing the Browser Interface for the first time, the Alert Log will contain one event called First Time Install. By clicking on this event, the Browser Interface displays the First Time Install window that provides information about first-time installations.
  • Page 35 Running the Browser Interface Click on the First Time Install alert. The Browser Interface displays the First- Time Install Window. Figure 4-2. The First Time Install Window This window is the launching point for the basic configuration you need to perform to set Browser Interface access parameters and Fault Detection policy for future use with the Browser Interface.

  • Page 36: Creating Operator Usernames And Password

    Running the Browser Interface Figure 4-3. The Device Passwords Window Creating Usernames and Passwords in the Browser Interface You may want to create both a username and password to create access security for your hub. Note that both a username and password are not required to use the Browser Interface.

  • Page 37: Creating Manager Usernames And Passwords

    Running the Browser Interface Click in the Operator Password box and type a string. The string should not have spaces, but may include any ASCII character in it. The string may be no longer than 16 characters. To represent spaces, use the underscore (_) character.

  • Page 38: Understanding The Browser Interface Environment

    Running the Browser Interface Understanding the Browser Interface Environment Now that you have successfully run the Browser Interface and created a password and username, become comfortable with the environment. The Browser Interface is a powerful tool that enables you to perform complex network configuration procedures with the simplicity of a mouse click.
  • Page 39 Running the Browser Interface The areas and fields in the Browser Interface Overview Window are detailed here. Tab Bar. The row of tabs displaying all the Browser Interface Top Level menus. Active Tab. The current tab selected. The tab is darkened and all the buttons contained by the tab are displayed.

  • Page 40: The Gauges Area

    Running the Browser Interface The Gauges Area The Gauges Area contains four separate graphical meters or gauges which display values associated with four separate attributes. The Gauges Area, shown across the top of the screen, details performance for the hub based on four attributes.
  • Page 41 Running the Browser Interface Take a moment to review the various gauge components to understand how the feature works. Attribute Medium Severity Region Gauge Marker Critical Severity Region Severity Region Gauge Attribute Needle Reading High Watermark Indicator (not shown) Figure 4-6. Gauge Elements The objects in the figure are described here.
  • Page 42 Running the Browser Interface Critical Severity Region. The higher region of the gauge, always shown in red, indicating a problem with the level of attribute activity and that action needs to be taken. After the Browser Interface displays the Overview Window, the Attribute Reading fields for all four attributes display the string Measuring..., indicating the application is collecting current data from the hub to represent in the gauges.

  • Page 43: The Alert Log

    Running the Browser Interface The Alert Log The Alert Log, shown in the lower half of the screen, shows a list of network occurrences, or alerts, that were retrieved from the hub’s MIB. Typical alerts are Loss of Link, indicating a severed connection between a hub port and the management station, Broadcast Storm, indicating an excessive number of broadcasts received on a port, and Problem Cable, indicating a faulty cable.

  • Page 44: Alert Types

    Running the Browser Interface The alerts are sorted, by default, by the Date/Time field with the most recent alert listed at the top of the list. The second most recent alert is displayed below the top alert and so on. If alerts occurred at the same time, the simultaneous alerts are sorted by order in which they appear in the MIB.

  • Page 45: Working With Detail Views

    Running the Browser Interface Working with Detail Views By clicking on Alert Entries, the Browser Interface displays a Detail View or separate window detailing information about the events. The Detail View contains a description of the problem and a possible solution. It also provides three management buttons: an Acknowledge Event Button that removes the New symbol from the entry.
  • Page 46 Running the Browser Interface The Alert Control Bar The Alert Control Bar appears at the bottom of the Alert Log and contains buttons that enable you to manage the Overview Window. Figure 4-9. The Alert Control Bar The buttons are detailed here. Refresh Button.

  • Page 47: Understanding The Tab Bar

    Running the Browser Interface Understanding The Tab Bar The Browser Interface Tab Bar contains six tabs, four of which launch button bars which launch specific functional windows. One tab, Identity, launches a dedicated functional window with no buttons. Another tab, Support, launches a separate web page with support information.

  • Page 48: Configuration

    Running the Browser Interface Configuration Figure 4-11. The Configuration Tab Bar This tab displays the Configuration Button bar which contains buttons that launch sessions enabling you to set or change values in various configuration areas on your hub. The buttons are: Device View.

  • Page 49: Security

    Running the Browser Interface Security Figure 4-12. The Security Tab Bar This tab displays the Security Button Bar which contains buttons that enable you view and set access restrictions for your hub. The buttons are: Device Passwords. Enables you to set operator and manager-level pass- words for the hub.

  • Page 50: Understanding The Status Bar

    Running the Browser Interface Understanding the Status Bar The Status Bar is the area between the Tab Bar and the top portion of your browser’s frame. Status Indicator Status Label System Name Figure 4-14. The Status Bar The Status Bar consists of four objects: Status Indicator.

  • Page 51: Setting Fault Detection Policy

    Running the Browser Interface Setting Fault Detection Policy One of the powerful features in the Browser Interface is the Fault Detection facility. This feature enables you to perform two types of fault management tasks: controls the types of alerts reported to the Alert Log based on their level of severity controls the sensitivity level required by a port before the port is disabled.

  • Page 52: Working With Fault Detection

    Running the Browser Interface Working With Fault Detection The Fault Detection Area contains two list boxes that control fault detection and response policy. The list boxes are: Log Network Problems. Provides sensitivity threshold levels that deter- mine when a network problem should generate an alert and send it to the Alert Log.
  • Page 53 Running the Browser Interface High Automation. The most sensitive of the settings, this policy directs the hub to send all alerts to the Alert Log and to disable the offending port in instances of severe network disruption. Sample Scenario You have a network with no or very few problems. You can use high automation Fault Detection settings to take action on any deetrimental network event.

  • Page 54: Using Snmp To Monitor And Manage The Hub

    Event reporting via SNMP traps and RMON (SNMP v2 Notifications are not supported at this time.) Managing the hub with a network management tool such as HP AdvanceStack Assistant Monitoring data normally associated with the SNMP agent (“Get” operations). Supported Standard MIBs include: •...
  • Page 55 HP 10Base-T Hubs configuration (config.mib) • HP VLAN configuration information (vlan.mib) supporting hpVlanGeneralGroup • HP EASE MIB version 4 to allow EASE sampling • HP Linktest MIB for basic device management (linktest.mib) • HP ICF Linktest MIB for link test features (icfbasic.mib)

  • Page 56: Snmp Configuration Process

    Using SNMP To Monitor and Manage the Hub SNMP Configuration Process The general steps to configuring for SNMP access to the preceding features are: From the Main menu, select Hub Configuration. Enable and configure an IP address for the hub, including any necessary gateways.
  • Page 58 Configuration Reference This chapter provides reference descriptions for screens in the Hub Console Interface and windows in the Browser Interface. The reference pages each contain the following: Quick Lookup Table Screen/Window Purpose Description Field and Column Descriptions Sample Views of Browser Interface Windows and Hub Console Screens Procedures on how to use features in both the Browser Interface and the Hub Console The way the screens and windows are ordered in this chapter are by the order...
  • Page 59 Configuration Reference Refer to the following table for a master list of the order of all console screens and Browser Interface Windows to determine where they will be presented in the reference. Note that menu names are bolded. Table 6-1. Console Screen/Browser Interface Map Hub Console Menu/Screen Browser Interface Window...

  • Page 60: Main Menu

    Configuration Reference Main Menu Attribute Description Screen Name Main Menu Menu Function The home menu upon first entry into the Hub Console Interface’s menu system. Displays a list of all menus and top-level options available from the console. Common Use Launching any top-level menu available from the console.
  • Page 61 Configuration Reference Figure 6-1. The Main Menu Screen...

  • Page 62: Hub Status And Counters

    Configuration Reference Hub Status and Counters Attribute Description Screen Name Hub Status and Counters Menu Main Menu Function Displays a list of options that detail hub identification and state information. Common Use Launching options that detail hub identification and state information.
  • Page 63 Configuration Reference Figure 6-2. The Hub Status and Counters Menu Screen...

  • Page 64: General System Information

    Configuration Reference General System Information Attribute Description Screen Name General System Information Menu Hub Status and Counters Function Displays a list of information about the hub. Common Use • Obtaining the hub’s MAC address. • Obtaining the hub’s IP Address. •...
  • Page 65 Configuration Reference System Up Time. Provides the amount of time elapsed since the device was powered on. Device Fault. Indicates errors discovered during the device self test. MAC Address. Provides the MAC address of the device. For example, 080009-495925. Serial Number. Provides the serial number of the device. For example, SG63401386.

  • Page 66: Viewing Hub System Information In The Browser Interface

    Configuration Reference Quick and easy access to IP Address of hub Quick and easy access to MAC Address of hub Figure 6-3. The Identity Window Viewing Hub System Information in the Browser Interface To view information in the Identity Window in the Browser Interface, click on the Identity Tab.

  • Page 67: Viewing Hub System Information In The Console

    Configuration Reference System Up-Time provides quick and easy way to tell when the hub was powered on Figure 6-4. The General Status Screen Viewing Hub System Information in the Console To view information in the General Status Screen in the Hub Console Inter- face, perform the following steps: From the Main Menu, type 1 and press [Enter].

  • Page 68: Port Status

    Configuration Reference Port Status Attribute Description Screen Name Port Status Menu in Hub Console Statistics and Counters Function Displays port list that provides information about the state of all ports on the hub. Common Use Determining whether the hub is receiving packets from a connected device Identifying which devices are connected to the hub;...
  • Page 69 Configuration Reference Link status. Indicates whether the Link Beat signal has been detected on the hub. Settings can be: Detected. Indicates the port has sensed a device that supports link beat. Not Detected. Indicates the port has not sensed a device that supports link beat.

  • Page 70: Changing Port Settings In The Browser Interface

    Configuration Reference You can both view port states and turn them on and off in the Port Settings Window. Figure 6-5. The Port Settings Window Changing Port Settings in the Browser Interface To view information in the Port Settings Window in the Browser Interface, perform the following steps: From the Tab Bar, select the Configuration Tab.

  • Page 71: Viewing The Port Settings In The Console

    Configuration Reference Ports 1 and 4 have a device connected to MAC addresses of them. devices connected to ports 1 and 4 display. Figure 6-6. The Port Status Screen Viewing the Port Settings in the Console To view settings in the Port Status Screen in the Hub Console Interface, perform the following steps: From the Main Menu, type 1 and press [Enter].

  • Page 72: Hub Port Counters

    Configuration Reference Hub Port Counters Attribute Description Screen Name Hub Port Counters Menu Hub Status and Counters Function Displays activity recorded on each hub port for six MIB variables. Common Use Determining which ports may be experiencing problems. Browser Interface Window Port Counters Browser Interface Tab Status...
  • Page 73 Configuration Reference Late Collisions. Provides the total number of late collisions on the port. A late collision is a packet reporting a collision after the first 64 bytes of the packet have been successfully transmitted. A late collision is generally indicative of one of the packets not detecting the other at the onset of transmission.

  • Page 74: Viewing Port Counter Statistics In The Browser Interface

    Configuration Reference The Refresh Button enables you to update the Window to have a current update of MIB counter values on your hub. Figure 6-7. The Port Counters Window Viewing Port Counter Statistics in the Browser Interface To view port counter values in the Port Counters Window in the Browser Interface, perform the following steps: From the Tab Bar, click on the Status Tab.

  • Page 75: Viewing Port Counter Statistics In The Console

    Configuration Reference Watch for high counts of Collisions, CRC Errors and Broadcast Packets. High values indicate heavy port traffic. Figure 6-8. The Hub Port Counters Screen. Viewing Port Counter Statistics in the Console To view port counter values in the Port Counters Screen in the Hub Console Interface, perform the following steps: From the Main Menu, type 1 and press [Enter].

  • Page 76: Global Counters

    Configuration Reference Global Counters Attribute Description Screen Name Global Counters Menu Hub Status and Counters Function Displays a list of MIB variables that show activity recorded on the hub. Common Use To determine traffic patterns on the hub to help make decisions about ways to optimize hub performance.
  • Page 77 Configuration Reference CRC/Alignment Errors. Displays the number of instances where the Cyclic Redundancy Check (CRC) method was used to detect a packet whose bits were misaligned because of timing errors. CRC is a method for detecting timing errors on a frame or packet. The CRC is a code typically placed at the end of the frame or packet to ensure the integrity of the data within the frame.

  • Page 78: Viewing Hub Counter Statistics In The Browser Interface

    Configuration Reference Figure 6-9. The Global Counters Window Viewing Hub Counter Statistics in the Browser Interface To view hub counter values in the Global Counters Window in the Browser Interface, perform the following tasks: From the Tab Bar, click on the Status Tab. The Browser Interface displays the Status Button Bar.

  • Page 79: Viewing Hub Counter Statistics In The Console

    Configuration Reference Check any high values that appear in the counter list and then check the time period in which they were recorded. A high value in a short time period may tindicate a network problem. Figure 6-10. The Global Repeater Counters Screen Viewing Hub Counter Statistics in the Console To view hub counter values in the Global Counters Screen in the Hub Console Interface, perform the following steps:...

  • Page 80: Security Intruder Log

    Configuration Reference Security Intruder Log Attribute Description Screen Name Security Intruder Log Menu Hub Status and Counters Function Displays a listing of ports that have learned of MAC addresses of devices attempting to connect to the ports without proper authorization. Common Use To detect port intruders.
  • Page 81 Configuration Reference Port Intrusions. Occurs when a MAC address detected from an incoming packet on a port does not match the authorized MAC address for the port. Port intrusions are controlled by the entries you make in the Port Security dialog box in ASA or the Browser Interface.

  • Page 82: Viewing The Intruder Information In The Browser Interface

    Configuration Reference Note that an IP Address is reported here and NOT a MAC address. This indicates that the violation was a manager intrusion. Figure 6-11. The Intrusion Log Window Viewing the Intruder Information in the Browser Interface To view unauthorized addresses in the Intruder Log from the Browser Inter- face, perform the following tasks: From the Tab Bar, click on the Security Tab.

  • Page 83: Stopping Intruder Flashing Leds In The Browser Interface

    Configuration Reference View each column to learn about unauthorized access activity occurring on the hub. • Pay special attention to repeat intrusions by the same address. • If you feel the intrusions are not significant, you may want to change the Address Selection settings in the Port Security Window to be less restrictive.

  • Page 84: Viewing Intruder Information In The Console

    Configuration Reference Note the violation time values. This can be helpful in determining how long the intrusion has been active. Figure 6-12. The Intruder Log Screen Viewing Intruder Information in the Console To view unauthorized addresses in the Intruder Log from the Hub Console Interface, perform the following tasks: From the Main Menu, type 1 and press [Enter].

  • Page 85: Clear Security Blinking Port Leds

    Configuration Reference Clear Security Blinking Port LEDs Attribute Description Screen Name Clear Security Blinking Port LEDs Menu Hub Status and Counters Function Enables you to stop port intruder-related flashing on LEDs for ports that have recorded intruders. Common Use Clearing LEDs flashing on the hub to create a less confusing LED panel.

  • Page 86: Stopping Intruder Flashing Leds In The Console

    Configuration Reference Before typing Y, make sure to note from the Intruder Log which ports have experienced intruders as LEDs will no longer indicate known intrusions by flashing. Figure 6-13. The Clear Security Blinking Port LEDs Option Stopping Intruder Flashing LEDs in the Console To stop LEDs from flashing in response to port intruders, using the Browser Interface, perform the following steps: From the Main Menu, type 1 and press [Enter].

  • Page 87: Management Access Configuration Menu

    Configuration Reference Management Access Configuration Menu Attribute Description Screen Name Management Access Configuration Menu Menu Function Displays a list of all menus and options that enable you to configure agent access methods. Common Use Launching screens to perform device access tasks. Browser Interface Window Browser Interface Tab Configuration...
  • Page 88 Configuration Reference Figure 6-14. The Management Access Configuration Menu 6-31...

  • Page 89: Ip Configuration

    IP network. It also enables you to access the hub via HP AdvanceStack Assistant and the Browser Interface. You can configure the IP Address manually or direct the agent on the hub to retrieve an available address, using the BOOTP/DHCP facility.
  • Page 90 Configuration Reference Subnet Mask. Indicates the subnet mask assigned to the hub. The subnet mask is a bit mask defining the subnet portion of the IP Address in the same format as the IP Address. Gateway. Indicates the IP Address of the nearest router in the network. If there are no routers, the address of the network management station is commonly used.

  • Page 91: Setting An Ip Address In The Browser Interface

    Configuration Reference Use the IP Configuration List Box to select either a manual or automatic (Bootp or DHCP) address setting session. Figure 6-15. The IP Settings Window Setting an IP Address in the Browser Interface To set an IP Address on the hub using the Browser Interface, perform the following steps: From the Tab Bar, click on the Configuration tab.

  • Page 92: Setting An Ip Address In The Console

    Configuration Reference Note that you need both a Subnet Mask and a Gateway to have a valid IP Address. Figure 6-16. The IP Configuration Screen Setting an IP Address in the Console To set an IP Address on the hub, using the Hub Console, perform the following tasks: From the Main Menu, type 2 and press [Enter].

  • Page 93: Community Name

    Community Names have many access levels. The access levels used in HP 10Base-T Hubs are described here. If you are using HP AdvanceStack Assistant or an SNMP tool to manage your HP hubs, you can assign a Community Name for both the Read and Write privileges for a user attempting to access a device.
  • Page 94 Name of Public that has Read and Write privileges for all areas of the device. The following table indicates the recommended combination of Read and Write settings for different levels of access to HP 10Base-T Hubs. Table 6-2. Community Names Read-Write Settings...

  • Page 95: Setting Community Names In The Console

    Configuration Reference Unlike most SNMP management programs, the HP Hub Console enables you to control the different levels of access for BOTH Read and Write privileges for a device. Figure 6-17. The Community List Screen Setting Community Names in the Console...
  • Page 96 Configuration Reference Type the name of the Community Name you want to use and press [Enter]. The Community LIst Screen displays the following prompt and information: Enter in Read View as (N)one, (R)estricted, (U)ser, (F)ull: Type the Read-level access you want this Community Name to provide (either N, R, U, or F) and press [Enter].
  • Page 97 Configuration Reference To edit a Community Name: From the Community List Screen, type E and press [Enter]. The Community List Screen displays the following prompt: Select community name to edit (1 - #) and press Enter. Type the number of the Community Name in the Community Name List that you want to edit and press [Enter].

  • Page 98: Authorized Managers

    For example, a security mask of 255.255.255.251 applied to an address of 15.47.66.40 to disallow values of 15.47.66.46, 15.47.66.47, 15.47.66.48, and 15.47.66.49. HP recommends you use a security mask value of 255.255.255.255.

  • Page 99: Setting Authorized Managers In The Console

    Configuration Reference Both the Community Name (access level) and IP Address of the authorized manager are shown to identify both who the manager is and what level of control they have. Figure 6-19. The Authorized Managers Screen Setting Authorized Managers in the Console To set authorized managers for the hub, perform the following tasks: From the Main Menu, type 2.
  • Page 100 Enter in manager IP mask: Type the security mask for the device that you want to act as a manager for the hub and press [Enter]. HP recommends you use a security mask value of 255.255.255.255. The Hub Console Interface displays the authorized manager list with the authorized manager you just created at the bottom of the list.
  • Page 101 Configuration Reference Type in the IP Address of the device that you want to act as a manager for the hub and press [Enter]. The Hub Console Interface displays the following prompt: Enter in manager IP mask: Type the subnet mask for the device that you want to act as a manager for the hub and press [Enter].

  • Page 102: Console Passwords

    Configuration Reference Console Passwords Attribute Description Screen Name Console Password Menu Management Access Configuration Function Enables you to set or change both a password and username for entry to the console and Browser Interface for device management. Common Use Block use of the console or Browser Interface by unauthorized users.
  • Page 103 Configuration Reference The Device Passwords Window in the Browser Interface contains the follow- ing boxes and buttons: Operator User Name. Enables you to enter a string that will be a username providing read-only privileges. Operator Password. Enables you to enter a string that will be a pass- word providing read privileges.

  • Page 104: Setting Operator Usernames And Passwords In The Browser

    Configuration Reference You can set both Operator (read access only) and Manager (read-write access) level passwords in the Browser Interface. Figure 6-20. The Device Passwords Window Setting Operator Usernames and Passwords in the Browser Interface To create an operator username and password, perform the following steps: From the Tab Bar, click on the Security Tab.
  • Page 105 Configuration Reference Click on the Apply Changes Button. The Browser Interface stores the username and password information and returns you to the Overview Window. Creating Manager Usernames and Passwords To create a manager username and password, perform the following steps: From the Tab Bar, click on the Security Tab.

  • Page 106: Setting Usernames And Passwords In The Console

    Configuration Reference As in many password setting programs, the Hub Console does not echo the issuing of the password string in the password setting session. The username, however, is echoed. Figure 6-21. The Device Password Option Setting Usernames and Passwords in the Console To initially set or change both a username and a password in the Hub Console, perform the following steps: From the Main Menu, type 2 and press [Enter].

  • Page 107: Telnet Enable/Disable

    Configuration Reference Telnet Enable/Disable Attribute Description Screen Name Telnet Enable/Disable Menu Management Access Configuration Function Enables and disables the ability to access the Hub Console Interface using a Telnet connection. Common Use Allowing Telnet session to be run. Browser Interface Window None Browser Interface Tab Bar None...

  • Page 108: Setting Telnet Access On The Hub In The Console

    Configuration Reference Be careful. If you are currently in a Telnet session, disabling Telnet will require a user who has access to the hub to reauthorize you if you want to return. Figure 6-22. The Telnet Enable/Disable Option Setting Telnet Access on the Hub in the Console To control Telnet access capability on the hub, perform the following steps: From the Main Menu, type 2.

  • Page 109: The Web Enable/Disable Screen Enables And Disables The Ability To Access The Browser Interface To Manage The Hub

    Configuration Reference Web Enable/Disable Attribute Description Screen Name Web Enable/Disable Menu Management Access Configuration Function Turns on and off the ability to manage the hub using the Browser Interface. Common Use To keep unauthorized operators from using the Browser Interface. Browser Interface Window None Browser Interface Tab Bar...

  • Page 110: Setting Browser Interface Access On The Hub In The Console

    Configuration Reference If you choose to disable web access, make sure to alert all users who may want to use the Browser Interface to manage the hub. Figure 6-23. The Web Enable/Disable Option Setting Browser Interface Access on the Hub in the Console To control Browser Interface access capability on the hub, perform the following steps: From the Main Menu, type 2 and press [Enter].

  • Page 111: Serial Timeout

    Configuration Reference Serial Timeout Attribute Description Screen Name Serial Timeout Menu Management Access Configuration Function Sets the amount of minutes allowed to lapse before the Hub Console Interface becomes inactive. Common Use Launching any second-level menu available from the console. Browser Interface Window None Browser Interface Tab Bar...

  • Page 112: Setting A Console Serial Timeout Value

    Configuration Reference When changing the timeout value, come up with a value that is not too low so all operators using the console will not lose connection too easily. Figure 6-24. The Serial Timeout Option Setting a Console Serial Timeout Value To set an Hub Console serial timeout default value, perform the following steps: From the Main Menu, type 2 and press [Enter].

  • Page 113: Hub Configuration Menu

    Configuration Reference Hub Configuration Menu Attribute Description Screen Name Hub Configuration Menu Menu Function Displays a list of options that enable you to perform hub and port configuration tasks. Common Use Launches options that enable you to perform hub and port configuration tasks.
  • Page 114 Configuration Reference Figure 6-25. The Hub Configuration Menu 6-57...

  • Page 115: Hub System Information

    Configuration Reference Hub System Information Attribute Description Screen Name Hub System Information Menu Hub Configuration Function Displays a list of all menus and top-level options available from the console. Common Use Launching any second-level menu available from the console. Browser Interface Window Identity Browser Interface Tab Identity...
  • Page 116 Configuration Reference MAC Address. The MAC address of the device. For example, 080009-495925. Serial Number. The serial number of the device. For example, SG63401386. SNMP Module Security Information. Indicates whether the hub has experienced a violation, generally, an packet from a device or manage- ment station that has not been authorized to transmit to the hub.

  • Page 117: Changing Hub System Information In The Browser Interface

    Configuration Reference Note that the information you supply here will be displayed in the Identity Window. Figure 6-26. The Identity Window Changing Hub System Information in the Browser Interface To change hub system information from the Browser Interface, perform the following steps: From the Tab Bar, click on the Configuration Tab.

  • Page 118: Changing Hub System Information In The Console

    Configuration Reference Information you can change is System Name, System Contact, and System Location. Figure 6-27. The Hub System Information Screen Changing Hub System Information in the Console To change hub system information from the Hub Console, perform the following steps: From the Main Menu, type 3 and press [Enter].
  • Page 119 Configuration Reference To begin entering or changing one or all of these strings, perform the appropriate step: To enter a new system name, type N and press [Enter]. • To enter a new system contact, type C and press [Enter]. •...

  • Page 120: Port Enable/Disable

    Configuration Reference Port Enable/Disable Attribute Description Screen Name Port Enable/Disable Menu Hub Configuration Function Displays a list of all menus and top-level options available from the console. Common Use Launching any second-level menu available from the console. Browser Interface Window Device View Browser Interface Tab Configuration...
  • Page 121 Enable Selected Ports Button. Activates any selected port. Disable Selected Ports Button. Renders inactive any selected port. The Device View graphic for HP 10Base-T Hubs contains the following graph- ical objects: Power LED. Always illuminates green to indicate that power is on. If power is not on, you will not be able to display the Device View.

  • Page 122: Enabling And Disabling Ports In The Browser Interface

    Retrieving Port Status This message indicates that the Browser Interface application is retrieving port state information from your HP 10Base-T Hub for all the ports on the hub. Take a moment to review the panel graphic. It is a representation of what you see on the front of your device.
  • Page 123 Configuration Reference To enable a port that is disabled, click the left mouse button on a gray- colored port. The Browser Interface highlights the port a blue border, indicating the port has been selected. The port can display one of two states: •...

  • Page 124: Enabling And Disabling Ports In The Console

    Configuration Reference By disabling a port, it will not be able to respond to packets transmitted to it. Figure 6-29. The Port Enable/Disable Screen Enabling and Disabling Ports in the Console To enable and disable ports using the Port Enable/Disable Screen in the Hub Console Interface, perform the following tasks: From the Main Menu, type 3 and press [Enter].
  • Page 125 Configuration Reference Type a number and press [Enter]. You can enter port numbers in the following fashion: • a discrete number, for example, 5 • multiple discrete numbers, separating each with a comma, for example, 3, 11, 19 • a range of port numbers, using a dash, for example, 3-6 •...

  • Page 126: Port Security

    Configuration Reference Port Security Attribute Description Screen Name Port Security Menu Hub Configuration Function Sets security parameters on the hub, providing address selection for intruder prevention and eavesdrop detection. Common Use Learning of unauthorized ports that attempt to communicate with the hub.
  • Page 127 Configuration Reference Eavesdrop Prevention. Indicates whether packets not intended for the port will be scrambled. The settings can be: On. Indicates that a packet not intended for the port will be scrambled. Off. Indicates that a packet not intended for the port will be received by the port.

  • Page 128: Intruder Prevention

    Configuration Reference Take a moment to review the settings in the Port Security environment. Additionally, you may want to become comfortable with several concepts before continuing. Network security comprises several features that are commonly used for protecting your device from potential problems. The features used are described below.

  • Page 129: Understanding Address Selections Methods

    Configuration Reference Understanding Address Selections Methods The technique used to control which devices are permitted to communicate with a port is known as Address Selection. Address Selection is the process by which the port sets policy for receiving packets. The port performs this task by comparing addresses in the source header of a packet with preset address tables that compile lists of acceptable source addresses.
  • Page 130 OpenView running OpenView as a platform for your SNMP manager) HP AdvanceStack Assistant for Unix/NT Any of various topically specific logs in the HP OpenView/Unix Event Categories Region Third Party SNMP Managers Logs of other SNMP managers you may have running in tandem with the Browser Interface.

  • Page 131: Setting Security On Ports In The Browser Interface

    Configuration Reference Port 5 will disable itself because it does not recognize the MAC address of a packet sent to it (080009-123458). Figure 6-30. The Port Security Window Setting Security on Ports in the Browser Interface To set security parameters on a port on the hub, perform the following steps: From the Tab Bar, click on the Security Tab.
  • Page 132 Configuration Reference From the Address Selection list box, select the Address Selection method you want to use. The options are: • continuous • first heard • assigned For more detail on these address selection methods, see the discussion on address selection methods at the beginning of this section. If you selected the Assigned address selection method, in the Authorized Address box, type the MAC address of the device you want to permit to communicate with the current port.
  • Page 133 Configuration Reference The Address Selection method is Continuous, meaning the port will continue to learn new addresses as they are received. When the port sees a packet not intended for it, no alarm will be generated. Figure 6-31. The Port Security Configuration Window 6-76...

  • Page 134: Disabling Security From Ports In The Console

    Configuration Reference Ports with assigned Address Selection Method allow only devices with the MAC Address shown in the Authorized Address column to connect. Figure 6-32. The Port Security Screen Disabling Security from Ports in the Console You can disable security from ports. To disable security on a port, perform the following steps: Type Y at the prompt Disable Security from the Ports and press [Enter].
  • Page 135 Configuration Reference Type Y and press [Enter]. The port list is redistilled, indicating disabled security for the ports you selected. Disabled security is indicated by the following settings: None in the Authorized Address column No in the Eavesdrop Prevention column No in the Send Alarm column The example shows ports, 6, 7, 8, 9, and 15...

  • Page 136: Backup Links

    One port on the current or local HP 10Base-T hub is defined as the connection to the primary path to the other device and another port on the current hub is defined as the connection to the secondary or backup path to the other device.
  • Page 137 Configuration Reference Primary Port. Indicates the number of the port on the hub. This port is used during a standard connection of a hub and the connected device. Backup Port. Indicates the number of the backup port on the hub. Test Time (Seconds).

  • Page 138: Setting Backup Links In The Browser Interface

    Configuration Reference Port 14 failed to respond after two one- second attempts by a packet. Port 15 is now the active port. Figure 6-34. The Backup Links Window Setting Backup Links in the Browser Interface To set backup links from the Browser Interface, perform the following steps: From the Tab Bar, click on the Configuration Tab.
  • Page 139 Configuration Reference From the Retries box, type the number of times you will allow the port to time out during test packet transmissions because of no response from the remote device before being disabled. Press the Apply Changes Button. Remember that this is the MAC address of the device being tested for a reachable link.

  • Page 140: Setting Backup Links In The Hub Console

    Configuration Reference In this example, backup port 4 has become the active port for failed port 1 while primary port 2 is active and healthy and has not had to use backup port 10. Figure 6-36. The Backup Links Screen Setting Backup Links in the Hub Console To set Backup Links from the Hub Console Interface, perform the following steps:...
  • Page 141 Configuration Reference To Add a Backup Link, perform the following Type A and press [Enter]. The Hub Console Interface displays the following prompt: Enter in primary port in backup link configuration (1-24, XCVR): Type the number of the port for which you want to assign a backup port. Press [Enter].
  • Page 142 Configuration Reference If you want a highly secure connection, you don’t want to allow too many attempts or timeout seconds within the attempts for the packet to fail. Figure 6-37. Adding a Backup Link 6-85...
  • Page 143 Configuration Reference Be careful not to remove a backup link that is the active port. Figure 6-38. Editing a Backup Link To edit or delete a Backup Link Type E to edit a backup link or D to delete a backup link and press [Enter].

  • Page 144: Reset Hub To Factory Default

    Configuration Reference Reset Hub to Factory Default Attribute Description Screen Name Reset Hub to Factory Default Menu Hub Configuration Function Reinitializes the hub’s configuration. Common Use Correcting a corrupted hub that was altered by a computer virus, network bottlenecking, a power failure, and other irregular activities.

  • Page 145: Resetting The Hub In The Browser Interface

    Configuration Reference Careful! When you reset the hub, you clear all of your settings. You may want to record your current settings to reconstruct your environment. Figure 6-39. The Factory Reset Window Resetting the Hub in the Browser Interface To reset the hub from the Browser Interface, perform the following tasks: From the Tab Bar, click on the Diagnostics Tab.

  • Page 146: Resetting The Hub To Factory Defaults In The Console

    Configuration Reference Resetting hub parameters is a quick way to remove current configuration values to start rebuilding your hub’s profile. Figure 6-40. The Reset Hub to Factory Default Option Resetting the Hub to Factory Defaults in the Console To reset the hub to factory defaults from the Hub Console Interface, perform the following steps: From the Main Menu, type 3 and press [Enter].
  • Page 147 Configuration Reference If you are sure you want to clear all values and reset the hub, type Y and press [Enter]. Note that if backup links were configured, possible network loops will occur on a factory default. 6-90...

  • Page 148: Diagnostics Menu

    Configuration Reference Diagnostics Menu Attribute Description Screen Name Diagnostics Menu Menu Function Displays a list of options available pertaining to network device troubleshooting. Common Use Launching any option pertaining to troubleshooting. Browser Interface Window Browser Interface Tab Bar Diagnostics The Diagnostics Menu contains several options pertaining to network device troubleshooting.
  • Page 149 Configuration Reference Figure 6-41. The Diagnostics Menu 6-92...

  • Page 150: Ping Test

    The node must be capable of receiving and responding to ICMP packets. The Ping Test is useful because they can tell you whether the HP 10Base-T hub you are managing is commu- nicating properly with another device on the network.
  • Page 151 Configuration Reference Number of Packets to Send. Indicates the number of times you want the current device to attempt to test a connection with another device before terminating further connection tests. Can be 1, 5, 10, or 20 on the Browser Interface and 1 through 10,000 in the Hub Console Interface.

  • Page 152: Running A Ping Test In The Browser Interface

    In the Number of Packets to Send box, use the list box to select a number, either 1, 5, 10, or 20, to indicate the number packets the HP 10Base-T Hub should send to the test device to determine whether a valid connection exists between the two devices.
  • Page 153 Configuration Reference In the Timeout in Seconds box, type a number between 1 and 30 that indicates the number of seconds the hub should wait for a response to a test packet request from the target device. Click the left mouse button on the Start button. 6-96...

  • Page 154: Running A Ping Test In The Console

    Configuration Reference The port was able to pass 10 tests of attempting to connect with a device with an IP Address of 15.31.200.204. Figure 6-43. The Ping/Link Test Screen Running a Ping Test Running a Ping Test in the Console To run a Ping Test in the Hub Console Interface, perform the following steps: From the Main Menu, type 4 and press [Enter].
  • Page 155 Configuration Reference Type a number between 1 and 30 that indicates the number of seconds the hub should wait for a response from the target device. Press [Enter]. The Hub Console Interface indicates the following information: • Test Attempts. The number of times the hub tried to successfully send a packet to the test device.

  • Page 156: Link Test

    Configuration Reference Link Test Attribute Description Screen Name Link Test Menu Diagnostics Function Tests the connection between a local device and a designated remote device. Common Use Indicates whether the hub is communicating properly with another device. Browser Interface Window Ping/Link Test Browser Interface Tab Diagnostics...
  • Page 157 Configuration Reference Number of Packets to Send. Indicates the number of times you want the current device to attempt to test a connection with another device before terminating further connection tests. Can be 1, 5, 10, or 20 on the Browser Interface and 1 through 10,000 in the Hub Console Interface.

  • Page 158: Running A Link Test In The Browser Interface

    Configuration Reference Note that the Link Test tests a path between two devices, using a MAC address. Figure 6-44. The Ping/Link Test Window Running a Link Test. Running a Link Test in the Browser Interface To run a Link Test from the Browser Interface, perform the following steps: From the Tab Bar, click on the Diagnostics Tab.
  • Page 159 Configuration Reference In the Number of Packets to Send box, use the list box to select a number, either 1, 5, 10, or 20, to indicate the number packets the hub should send to the test device to determine whether a valid connection exists between the two devices.

  • Page 160: Running A Link Test In The Console

    Configuration Reference The port was able to pass 10 tests of attempting to connect with a device with a MAC address of 080009-64cecf. Figure 6-45. The Ping/Link Test Screen Running a Link Test Running a Link Test in the Console To run a Link Test from the Hub Console Interface, perform the following tasks: From the Main Menu, type 4 and press [Enter].
  • Page 161 Configuration Reference Type a number between 1 and 30 that indicates the number of seconds the hub should wait for a response to a test packet request from the target device.Press [Enter] The Hub Console Interface indicates the following information: Test Attempts.

  • Page 162: Browse Hub Configuration

    Configuration Reference Browse Hub Configuration Attribute Description Screen Name Browse Hub Configuration Menu Diagnostics Function Displays a master dump of many status screens available:showing current values. Common Use To obtain a quick glance at all settings and status information without having to search for specific screens. Browser Interface Window Configuration Report Browser Interface Tab...

  • Page 163: Viewing Multiple Configuration Windows In The Browser Interface

    Configuration Reference Figure 6-46. The Configuration Report Window Viewing Multiple Configuration Windows in the Browser Interface To view multiple configuration values from the Browser Interface, perform the following steps: From the Tab Bar, click on the Diagnostics Tab. The Browser Interface displays the Diagnostics Button Bar.

  • Page 164: Viewing Multiple Hub Configuration Screens In The Console

    Configuration Reference Be ready to stop the screen quickly. Once you press Enter, the contents of almost a dozen Hub Console screens will be scrolled. Figure 6-47. The Browse Hub Configuration Option Viewing Multiple Hub Configuration Screens in the Console To browse multiple hub configuration values, perform the following steps: Type 4 and press [Enter] from the Main Menu.
  • Page 165 Configuration Reference A sample multiple configuration dump at mid-browse. Shown are portions of the Backup Links, Community List, and Authorized Managers screens. Figure 6-48. The Browse Configuration Screen Displaying Multiple Screens 6-108...

  • Page 166: Exporting Multiple Hub Configuration Screens To A Log File

    Configuration Reference Figure 6-49. A Browse Hub Configuration Log File Viewed in the DOS Editor Exporting Multiple Hub Configuration Screens to a Log File The following procedure assumes you are working in HyperTerminal in a Windows environment. To send multiple configuration data to a log file, perform the following tasks: From the HyperTerminal menu bar, click on the Transfer Menu.

  • Page 167: Reboot Hub

    Configuration Reference Reboot Hub Attribute Description Screen Name Reboot Hub Menu Main Menu Function Clears counters on hub as though the hub has been powered on and off. Common Use To remove settings from your hub to begin a fresh new session.

  • Page 168: Rebooting The Hub In The Console

    Configuration Reference Careful! Rebooting will cause you to lose your current Hub Console session. Unlike the Reset Hub option, however, all values will persist to the next session. Figure 6-50. The Reboot Hub Option Rebooting the Hub in the Console To reboot the hub, perform the following steps: From the Main Menu, type 5 and press [Enter].

  • Page 169: Download Os

    Configuration Reference Download OS Attribute Description Screen Name Download OS Menu Main Menu Function Installs new agent firmware. Common Use Upgrades to a better version of firmware. Web Counterpart None Web Tab Bar None Default Settings The Download OS Screen displays a port list that provides several columns of information about the state of all ports on the hub.

  • Page 170: Downloading Firmware To The Hub In The Console

    Configuration Reference Careful. By downloading new firmware, you overwrite existing firmware on the hub. You may also lose your console session. Figure 6-51. The Download OS Option Downloading Firmware to the Hub in the Console To download new firmware to the hub, perform the following steps: Make sure you are connected to a firmware server with an Xmodem connection on your console.

  • Page 171: Return To The Command Prompt

    Configuration Reference Return to the Command Prompt Attribute Description Screen Name Return to the Command Prompt Menu Function Returns you to the Command Prompt region of the Hub Console Interface Common Use Enabling you to use command prompts to perform tasks. Browser Interface Window None Browser Interface Tab...
  • Page 172 Browser Interface Window Support URL Browser Interface Tab Configuration Default Setting http://www.hp.com/go/network_city The Support URL Window enables you to change the World Wide Web Universal Resource Locator for your Browser Interface support site. The default URL is: http://www.hp.com/go/network_city The Support URL Window contains the following objects: Support URL box.

  • Page 173: Changing Your Support Url In The Browser Interface

    Configuration Reference The Support URL provided here makes the Network City World Wide Web page your default support page when you click on the Support Tab. Figure 6-52. The Support URL Window Changing Your Support URL in the Browser Interface To change your Support URL, perform the following steps: From the Tab Bar, click on the Configuration Tab.
  • Page 174 Configuration Reference Support Attribute Description Screen Name None Menu None Function Displays the support site specified in the Support URL. Common Use To learn more about the nature of the Browser Interface. Browser Interface Window Support Browser Interface Tab Support Default Settings None The Support Tab in the Browser Interface displays the support site specified...

  • Page 175: How To Find Support Material In The Browser Interface

    Figure 6-53. The Support Window How to Find Support Material in the Browser Interface To find support material for use of HP 10Base-T Hubs, using the Browser Interface, perform the following steps: From the Tab Bar, click on the Support Tab. The Browser Interface displays the Home Page of the Hewlett-Packard Network City Web Site.
  • Page 176 Configuration Reference 6-119...

  • Page 178: Troubleshooting

    “Diagnosing with the LEDs” in this chapter. You can diagnose hubs on the HP J3301A and HP J3303A, the managed hubs, by By using the Browser Interface, a Web-based interface that provides a full management environment.
  • Page 179 Troubleshooting Diagnosing with the LEDs Use the following table to diagnose the problem with your HP 10Base-T Hub. Problem Solution How do I reset the hub? You can reset the hub three five different ways: • From the device, remove the plug on the power cord from the power source or the hub and reconnect it.

  • Page 180: Interpreting Led Status

    Status information for both are described in the following tables. Interpreting Hub Status LEDs The hub status LEDs indicate whether the hub is functioning properly. The following table provides LED port information for the HP J3301A and HP J3303A. LED Color...

  • Page 181: Interpreting Port Status Leds

    Troubleshooting Interpreting Port Status LEDs The following table provides LED port information for the HP J3301A and the HP J3303A. Color Meaning of LED Twisted-pair Green On indicates Link Beat is detected from the attached Ports node and the port is enabled on the HP J3301A and HP J3303A.

  • Page 182: Led Operation

    See Port Security in Browser Interface or Hub Console Interface. The hub has failed its self-test. Power-cycle the hub. If this condition persists, call your HP- authorized LAN dealer or HP representative for assistance. *This LED is not important for the diagnosis.
  • Page 184 Index Symbols AUI/Xcvr LED … 7-4 Authorized Manager List => prompt … 2-6 Browse Hub Configuration … 6-105 authorized manager list … 6-23 Authorized Managers … 3-3 adding … 6-42 access level configuration tasks … 1-2 editing … 6-43 access levels number of network management stations device …...
  • Page 185 Backup Links Window … 6-81 Browser Interface elements … 4-7 Add New Backup Link Button … 6-81 Browser Interface Tab Bar … 4-8 Backup Port list box … 6-81 Button Bar Primary Port list box … 6-81 Browser Interface … 4-8 Retries box …...
  • Page 186 user levels … 6-37 Diagnostics screen … 6-3 User Read Setting … 6-37 Disable Selected Ports Button User Read Setting mapped to user level … 6-37 Device View Window … 6-64 write privileges … 6-30, 6-36 disabling ports from the Hub Console Interface … 6-67 Community Names Screen …...
  • Page 187 Header Bar Alert Log … 4-8 High Watermark Indicator Gauges Area … 4-10 HP AdvanceStack Assistant … 5-1, 6-23, 6-32, 6-36, 6-70 alarm management … 6-73 working with Community Names … 6-36 HP proprietary MIB … 5-2 reference … 7-3 troubleshooting …...
  • Page 188 IP Address … 1-2, 6-32, 6-35 LEDs communication between hub and net AUI/Xcvr … 7-4 management … 3-1 Collision … 7-3 configuration parametersI … 3-2 diagnosing the hub status … 7-2 configuration screen … 3-5 patterns showing error conditions … 7-5 default router …...
  • Page 189 … 2-8 ME command … 2-7 manager … 4-5–4-6, 6-45 MIB listing … 5-1 operator … 4-5, 6-45 MIB, HP proprietary … 5-1 string limit … 6-47 MIB, IPX … 5-1 MIB, standard … 5-1 Min Response Time Ping Test …...
  • Page 190 Ping Test … 6-91 Port Region about … 6-91, 6-93 Device View Window … 6-64 Destination IP/MAC Address column … 6-93 Port Security failed … 6-93 Intruder Prevention … 6-71 Max Response Time … 6-94 port security Max Response Time (ms) … 6-98 alarm destinations …...
  • Page 191 Set Security Policy for Selected Ports Button … 6-74 SNMP … 5-1 Read privileges … 6-36 configure … 5-3 Reboot Hub option … 6-110 IP address … 5-1 rebooting the hub … 6-111 traps … 5-1 reinitializing hub counters … 6-87 v1 agent …...
  • Page 192 Browse Hub Configuration … 6-105 troubleshooting Web Enable/Disable Option … 6-52, 6-53 approaches … 7-1 web site, HP … 5-2 diagnosing with the LEDs … 7-2 world wide web site … 5-2 LED patterns showing errors … 7-5 Write privileges … 6-36 using the Diagnostics options …...
  • Page 193 10 – Index...
  • Page 194 Technical information in this document is subject to change without notice. ©Copyright Hewlett-Packard Company 1997. All rights reserved. Reproduction, adaptation, or translation without prior written permission is prohibited except as allowed under the copyright laws. Printed in Singapore 11/97 Manual Part Number 5967-0853 *5967-0853*...

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