Alcatel OMNISTACK 6148 User Manual
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Alcatel OMNISTACK 6148 User Manual

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Part No. 060144-10, Rev. A
June 2002
OmniStack
6148
®

Users Guide

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Summary of Contents for Alcatel OMNISTACK 6148

  • Page 1: Users Guide

    Part No. 060144-10, Rev. A June 2002 OmniStack 6148 ® Users Guide...
  • Page 2 For more information on Alcatel’s Service Programs, see our web page at www.ind.alcatel.com, call us at 1-800-995-2696, or email us at support@ind.alcatel.com. This Manual documents OmniStack 6148 hardware and software. The functionality described in this Manual is subject to change without notice. Copyright 2002 by Alcatel Internetworking, Inc.
  • Page 3 Warning This equipment has been tested and found to comply with the limits for Class A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.

  • Page 5: Table Of Contents

    Contents Switch Management Configuration Options Backup Management Agent Closed-Loop Stack Required Connections Console Port (Out-of-Band) Connections In-Band Connections Using the System Configuration Program Login Screen Console Configuration Navigation Keys and Buttons Main Menu System Information Menu Displaying System Information Displaying Switch Version Information Management Setup Menu Changing the Network Configuration 2-10...
  • Page 6 Contents IGMP Multicast Filtering 2-37 Configuring IGMP 2-37 Configuring Broadcast Storm Control 2-38 Port Security Configuration 2-39 Configuring Bridge MIB Extensions 2-40 Configuring Traffic Classes 2-41 Port Priority Configuration 2-42 802.1P Port Traffic Class Information 2-43 Configuring Virtual LANs 2-44 802.1Q VLAN Base Information 2-44 802.1Q VLAN Current Table Information...
  • Page 7 Contents Configuration Save and Restore 3-14 Configuration Upload Management 3-14 Configuration Download Management 3-14 Address Table Configuration 3-15 Spanning Tree Algorithm (STA) 3-16 Spanning Tree Information 3-16 Spanning Tree 3-16 Ports 3-17 Spanning Tree Configuration 3-18 Switch 3-18 When the Switch Becomes Root 3-18 STA Port Configuration 3-19...
  • Page 8 Contents Advanced Topics Layer 2 Switching Spanning Tree Algorithm Virtual LANs Assigning Ports to VLANs Port Overlapping Automatic VLAN Registration (GVRP) Forwarding Traffic with Unknown VLAN Tags Forwarding Tagged/Untagged Frames Connecting VLAN Groups Multicast Filtering IGMP Snooping IGMP Protocol Class-of-Service (CoS) Support Port Trunks SNMP Management Software Remote Monitoring...

  • Page 9: Switch Management

    Chapter 1: Switch Management Configuration Options For advanced management capability, the Management Module provides a menu-driven system configuration program. This program can be accessed by a direct connection to the serial port on the rear panel (out-of-band), or by a Telnet connection over the network (in-band).

  • Page 10: Closed-Loop Stack

    Switch Management management only synchronizes the configuration file, including any configuration updates, with the backup management. • Upon the failure or “hot” removal of the master Management Module within a stackable configuration, the following occurs: - A “Trap” is sent, a “Log event” is logged, the switch is re-booted and the backup Management Module takes over without loss of configuration settings.

  • Page 11: In-Band Connections

    In-Band Connections Prior to accessing the Management Module via a network connection, you must first configure it with a valid IP address, subnet mask, and default gateway using an out-of-band connection or the BOOTP protocol. Note: By default BOOTP is disabled and the IP address is set to 192.168.10.1. To enable BOOTP, see “IP Configuration”...
  • Page 12 Switch Management...

  • Page 13: Using The System Configuration Program

    Login Screen Once a direct connection to the serial port or a Telnet connection is established, the login screen for the on-board configuration program appears as shown below. Alcatel OmniStack 6148 Alcatel Internetworking 26801 West Agoura Road Calabasas, CA, 91301...
  • Page 14 Using the System Configuration Program After you enter the user name and password, you will have access to the system configuration program as illustrated by the following menu hierarchy: System Information About Switch Information This Product IP Configuration IP Connectivity Test(Ping) Management HTTP Configuration Network Configuration...

  • Page 15: Console Configuration Navigation Keys And Buttons

    Console Configuration Navigation Keys and Buttons Console Configuration Navigation Keys and Buttons Menu items and configurable parameters in any screen can be selected by using <TAB> or the arrow keys. As you select each field, help information for the item is displayed in the highlighted line at the bottom of the screen.

  • Page 16: Main Menu

    Note: Options for the currently selected item are displayed in the highlighted area at the bottom of the interface screen. Alcatel OmniStack 6148 < Main Menu > About this product Management Setup Menu...
  • Page 17 Main Menu Menu Description Device Control Menu Port Configuration Enables any port, enables/disables flow control, and sets communication mode to auto-negotiation, full duplex or half duplex. Port State Displays operational status, including link state, flow control method, and duplex mode. Spanning Tree Configuration Enables Spanning Tree Algorithm;...

  • Page 18: System Information Menu

    Using the System Configuration Program System Information Menu Use the “About this product” menu to display a basic description of the switch, including contact information, and hardware/firmware versions. Alcatel OmniStack 6148 < About this product > System Information Switch Information <Ok>...

  • Page 19: Displaying System Information

    Use the System Information screen to display descriptive information about the switch, or for quick system identification as shown in the following figure and table. Alcatel OmniStack 6148 < System Information > System Description : Alcatel OmniStack 6148 System Object ID : 1.3.6.1.4.1.800.3.1.1.9 System Up Time...

  • Page 20: Displaying Switch Version Information

    Expansion Slot 2 Shows module type if inserted: (100BASE-FX, 1000BASE-SX, 1000BASE-LX, 1000BASE-T, GBIC, Stacking, or Redundant Stacking). Model Type Indicates the switch model (OmniStack 6148). Agent Module Label Indicates the Part Number, Serial Number, and Revision Number of the agent board.

  • Page 21: Management Setup Menu

    Also set the community string which controls access to the on-board SNMP agent via in-band management software (SNMP Configuration). The items provided by the Management Setup Menu are described in the following sections. Alcatel OmniStack 6148 < Management Setup Menu > Network Configuration Serial Port Configuration...

  • Page 22: Changing The Network Configuration

    Internet Protocol (IP) parameters, enable the on-board Web agent, or to set the number of concurrent Telnet sessions allowed. The screen shown below is described in the following table. Alcatel OmniStack 6148 < Network Configuration > IP Configuration IP Connectivity Test(Ping)

  • Page 23: Ip Configuration

    IP Configuration Use the IP Configuration screen to set the bootup option, or configure the switch’s IP parameters. The screen shown below is described in the following table. Alcatel OmniStack 6148 < IP Configuration > Interface Type : Ethernet IP Address : 192.168.10.1...

  • Page 24: Ip Connectivity Test (Ping)

    IP Connectivity Test (Ping) Use the IP Connectivity Test to see if another site on the Internet can be reached. The screen shown below is described in the following table. Alcatel OmniStack 6148 < IP Connectivity Test(Ping) > IP Address :...

  • Page 25: Http Configuration

    Use the HTTP Configuration screen to enable/disable the on-board Web agent, and to specify the TCP port that will provide HTTP service. The screen shown below is described in the following table. Alcatel OmniStack 6148 < HTTP Configuration > HTTP Server...

  • Page 26: Configuring The Serial Port

    “Required Connections” on page 1-2.) The communication parameters for this port can be accessed from the Serial Port Configuration screen shown below and described in the following table. Alcatel OmniStack 6148 < Serial Port Configuration > Management Mode...

  • Page 27: Assigning Snmp Parameters

    NMS must first submit a valid community string for authentication. The options for configuring community strings and related trap functions are described in the following sections. Alcatel OmniStack 6148 < SNMP Configuration > Send Authentication Fail Traps : ENABLED...

  • Page 28: Configuring Community Names

    Using the System Configuration Program Configuring Community Names The following figure and table describe how to configure the community strings authorized for management access. Up to 5 community names may be entered. Alcatel OmniStack 6148 < SNMP Security > Community Name Access...

  • Page 29: Configuring Ip Trap Managers

    The following figure and table describe how to specify management stations that will receive authentication failure messages or other trap messages from the switch. Up to 5 trap managers may be entered. Alcatel OmniStack 6148 < IP Trap Managers > IP Address...

  • Page 30: Console Login Configuration

    System Configuration Program, contact Alcatel Technical Support for assistance.) The parameters shown on this screen are indicated in the following figure and table. Alcatel OmniStack 6148 < Console Login Configuration > Password Threshold...

  • Page 31: Downloading System Software

    TFTP server and the quality of the network connection. After downloading the new software, the agent will automatically restart itself. Parameters shown on this screen are indicated in the following figure and table. Alcatel OmniStack 6148 < TFTP Download New Software > Download Server IP :...

  • Page 32: Saving The System Configuration

    The success of the operation depends on the accessibility of the TFTP server and the quality of the network connection. Parameters shown on this screen are indicated in the following figure and table. Alcatel OmniStack 6148 < Configuration Upload > Upload Server IP...

  • Page 33: Managing The Switch

    Management Setup Menu Managing the Switch Use the Management Configuration screen to configure the management access of the switch. Alcatel OmniStack 6148 < Management Configuration > Management VLAN : ALL VLAN <Apply> <Ok> <Cancel> Use <TAB> or arrow keys to move, <Space> to scroll options.

  • Page 34: Configuring The Banner Message

    Windows HyperTerminal, select “Paste to Host” from the Edit menu in the menu bar. Note that the maximum line length in the screen is 80 characters. The first page of a sample banner message is shown below. Alcatel OmniStack 6148 < Banner Message Configuration > SECURITY ALERT This is an Organization Z computer system.

  • Page 35: Configuring The Switch

    Spanning Tree, port mirroring, multicast filtering, and Virtual LANs. Each of the setup screens provided by these configuration menus are described in the following sections. Alcatel OmniStack 6148 < Switch Configuration Menu > Port Configuration Extended Bridge Configuration Port State 802.1P Configuration...

  • Page 36: Configuring Port Parameters

    Configuring Port Parameters Use the Port Configuration menus to set or display communication parameters for any port or module in the stack. Alcatel OmniStack 6148 < Port Configuration > Unit 1 Port 1 - 12 Flow Control on all ports :...
  • Page 37 Configuring the Switch Parameter Default Description Speed and Duplex Auto Indicates current port speed and duplex mode. Note that autonegotiation is not available for the 100BASE-FX ports. Port Type Speed Duplex Mode Flow Control 100BASE-FX 100M full duplex auto 1000BASE-SX 1000M auto auto...

  • Page 38: Viewing The Current Port Configuration

    The Port Information screen displays the port type, status, link state, and flow control in use, as well as the communication speed and duplex mode. To change any of the port settings, use the Port Configuration menu. Alcatel OmniStack 6148 < Port State > Unit 1 Port...

  • Page 39: Using The Spanning Tree Algorithm

    For a more detailed description of how to use this algorithm, refer to “Spanning Tree Algorithm” on page 4-1. Alcatel OmniStack 6148 < Spanning Tree Configuration Menu > Spanning Tree Bridge Configuration Spanning Tree Port Configuration <Ok>...
  • Page 40 Using the System Configuration Program Parameter Default Description Spanning Tree Enabled Enable this parameter to participate in a STA compliant network. Protocol Priority 32,768 Device priority is used in selecting the root device, root port, and designated port. The device with the highest priority becomes the STA root device.

  • Page 41: Configuring Sta For Ports

    Configuring the Switch Configuring STA for Ports The following figure and table describe port STA configuration. Alcatel OmniStack 6148 < Spanning Tree Port Configuration > Unit 1 Port 1 - 12 Fast forwarding on all ports : [Enable] [Disable] Port...

  • Page 42: Viewing The Current Spanning Tree Information

    The Spanning Tree Information screen displays a summary of the STA information for the overall bridge or for a specific port. To make any changes to the parameters for the Spanning Tree, use the Spanning Tree Configuration menu. Alcatel OmniStack 6148 < Spanning Tree Information Menu > Spanning Tree Bridge State Spanning Tree Port State <Ok>...

  • Page 43: Displaying The Current Bridge Sta

    Configuring the Switch Displaying the Current Bridge STA The parameters shown in the following figure and table describe the current Bridge STA State. Alcatel OmniStack 6148 < Spanning Tree Bridge State > Bridge Priority : 32768 Hello Time (in seconds)

  • Page 44: Displaying The Current Sta For Ports

    Using the System Configuration Program Displaying the Current STA for Ports The parameters shown in the following figure and table are for port STA Information. Alcatel OmniStack 6148 < Spanning Tree Port State > Unit 1 Port 1 - 12...

  • Page 45: Using A Mirror Port For Analysis

    (See “Configuring Virtual LANs” on page 2-44.) You can use the Mirror Port Configuration screen to designate a single port pair for mirroring as shown below. Alcatel OmniStack 6148 < Mirror Port Configuration > Mirror Source Port : Unit 1...

  • Page 46: Configuring Port Trunks

    Using the System Configuration Program Configuring Port Trunks Port trunks can be used to increase the bandwidth of a network connection or to ensure fault recovery. You can configure up to four trunk connections (combining 2~4 ports into a fat pipe) between any two standalone OmniStack ®...
  • Page 47 Configuring the Switch You can use the Port Trunking Configuration screen to set up port trunks as shown below: Alcatel OmniStack 6148 < Port Trunking Configuration > Trunk ID Status Member List --------- -------- ----------- ----------- ----------- ----------- ENABLED Unit : 1...
  • Page 48 Using the System Configuration Program The RJ-45 ports used for one side of a trunk must all be on the same internal switch chip. The port groups permitted include: Group 1 Group 2 Group 3 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 17, 18, 19, 20...

  • Page 49: Igmp Multicast Filtering

    This protocol allows a host to inform its local switch/router that it wants to receive transmissions addressed to a specific multicast group. You can use the IGMP Configuration screen to configure multicast filtering shown below. Alcatel OmniStack 6148 < IGMP Configuration > IGMP Status...

  • Page 50: Configuring Broadcast Storm Control

    Configuring Broadcast Storm Control Use the Broadcast Storm Control Configuration screen to enable broadcast storm control for any port on the switch, as shown below. Alcatel OmniStack 6148 < Broadcast Storm Control Configuration > Unit 1 Port 1 - 12...

  • Page 51: Port Security Configuration

    Use the Port Security Configuration screen to enable and configure port security for the switch. Port Security allows you to configure each port with a list of MAC addresses of devices that are authorized to access the network through that port. Alcatel OmniStack 6148 Port Security Configuration MAC Address...

  • Page 52: Configuring Bridge Mib Extensions

    The Bridge MIB includes extensions for managed devices that support Traffic Classes and Virtual LANs. To display and configure these extensions, use the Extended Bridge Configuration screen as shown below. Alcatel OmniStack 6148 < Extended Bridge Configuration > Bridge Capability : (Read Only)

  • Page 53: Configuring Traffic Classes

    You can use the 802.1P Configuration menu to configure the default priority for each port, or to display the mapping for the traffic classes as described in the following sections. Alcatel OmniStack 6148 < 802.1P Configuration > 802.1P Port Priority Configuration 802.1P Port Traffic Class Information...

  • Page 54: Port Priority Configuration

    You can use the following menu to adjust default ingress priority for any port as shown below. Alcatel OmniStack 6148 < 802.1P Port Priority Configuration > Unit 1 Port...

  • Page 55: 802.1P Port Traffic Class Information

    This means that any frames with a priority tag from 0~3 are sent to the low priority queue “0” while those from 4~7 are sent to the high priority queue “1” as shown in the following screen. Alcatel OmniStack 6148 < 802.1P Port Traffic Class Information > Unit 1 Port...

  • Page 56: Configuring Virtual Lans

    LANs” on page 4-2. The VLAN configuration screens are described in the following sections. 802.1Q VLAN Base Information The 802.1Q VLAN Base Information screen displays basic information on the VLAN type supported by this switch. Alcatel OmniStack 6148 < 802.1Q VLAN Base Information > VLAN Version Number MAX VLAN ID : 2048...

  • Page 57: 802.1Q Vlan Current Table Information

    VLAN for one or two switches, you can assign ports to the same untagged VLAN. The current configuration is shown in the following screen. Alcatel OmniStack 6148 < 802.1Q VLAN Current Table Information > Deleted VLAN Entry Counts : 0...

  • Page 58: 802.1Q Vlan Static Table Configuration

    You can add/delete port members for a VLAN from any unit in the stack as a tagged or untagged member. Or you can prevent a port from being automatically added to a VLAN by the GVRP protocol. Alcatel OmniStack 6148 < 802.1Q VLAN Static Table Configuration > VLAN Name...
  • Page 59 Configuring the Switch For example, the following screen displays settings for VLAN 2, which includes untagged ports 1-6, and forbidden port 8. Alcatel OmniStack 6148 < 802.1Q VLAN Static Table Configuration > VLAN Name Status ------------------------------ Active Unit Egress Ports...

  • Page 60: 802.1Q Vlan Port Configuration

    Using the System Configuration Program 802.1Q VLAN Port Configuration Use this screen to configure port-specific settings for IEEE 802.1Q VLAN features. Alcatel OmniStack 6148 < 802.1Q VLAN Port Configuration > Unit 1 Port 1 - 12 Port PVID Acceptable Ingress...

  • Page 61: Monitoring The Switch

    The Network Monitor Menu provides access to port statistics, RMON statistics, IP multicast addresses, and the static address table. Each of the screens provided by these menus is described in the following sections. Alcatel OmniStack 6148 < Network Monitor Menu > Port Statistics...

  • Page 62: Displaying Port Statistics

    The values displayed have been accumulated since the last system reboot. Select the required port. The statistics displayed are indicated in the following figure and table. Alcatel OmniStack 6148 < Port Statistics > Unit 1 Port Ether Like Counter :...

  • Page 63: Displaying Rmon Statistics

    RMON statistics provide access to a broad range of statistics, including a total count of different frame types and sizes passing through each port. Values displayed have been accumulated since the last system reboot. Alcatel OmniStack 6148 < RMON Statistics > Unit 1 Port...
  • Page 64 Using the System Configuration Program Menu Description Oversize Frames The total number of frames received that were longer than 1518 octets (excluding framing bits, but including FCS octets) and were otherwise well formed. Fragments The total number of frames received that were less than 64 octets in length (excluding framing bits, but including FCS octets) and had either an FCS or alignment error.

  • Page 65: Displaying The Unicast Address Table

    The information displayed in the Address Table is indicated in the following figure and table. Alcatel OmniStack 6148 < Unicast Address Table > Aging Time : 300...

  • Page 66: Displaying The Ip Multicast Registration Table

    Displaying the IP Multicast Registration Table Use the IP Multicast Registration Table to display all the multicast groups active on this switch, including multicast IP addresses and the corresponding VLAN ID. Alcatel OmniStack 6148 < IP Multicast Registration Table > Multicast IP...

  • Page 67: Configuring Static Unicast Addresses

    MAC addresses in the unicast table. You can use this screen to associate a MAC address with a specific VLAN ID and switch port as shown below. Alcatel OmniStack 6148 < Static Unicast Address Table Configuration > MAC Address...

  • Page 68: Resetting The System

    Resetting the System Use the Restart command under the Main Menu to reset the management agent. The reset screen includes options as shown in the following figure and table. Alcatel OmniStack 6148 < Reset System Menu > Restart Option :...

  • Page 69: Web-Based Management

    Chapter 3: Web-Based Management Web-Based Configuration and Monitoring As well as the menu-driven system configuration program, the agent module provides an embedded HTTP Web agent. This agent can be accessed by any computer on the network using a standard Web browser (Internet Explorer 4.0 or above, or Netscape Navigator 4.0 or above).

  • Page 70: Navigating The Web Browser Interface

    Web-Based Management Navigating the Web Browser Interface To access the Web-browser interface you must first enter a user name and password. The default user name is “admin,” with a password of “switch.” The administrator has Read/Write access to all configuration parameters and statistics. Home Page When your Web browser connects with the switch’s Web agent, the home page is displayed as shown below.

  • Page 71: Configuration Options

    Panel Display Configuration Options Configurable parameters have a dialog box or a drop-down list. Once a configuration change has been made on a page, be sure to click on the “Apply” button at the bottom of the page to confirm the new setting. The following table summarizes the Web page configuration buttons.

  • Page 72: Port State Display

    Web-Based Management Port State Display Click on any port to display a summary or port status as shown below, as well as Etherlike statistics (page 3-42) and RMON statistics (page 3-43). Parameter Description Type Shows port type as: 10/100TX: 10BASE-T / 100BASE-TX Admin Status Shows if the port is enabled, or has been disabled due to abnormal behavior or for security reasons.

  • Page 73: Console Configuration

    Panel Display Console Configuration If you are having difficulties making an out-of-band console connection to the serial port on the agent module, you can display or modify the current settings for the serial port through the Web agent. Click on the serial port icon in the switch image to display or configure these settings, as shown below.

  • Page 74: Main Menu

    Web-Based Management Main Menu Using the on-board Web agent, you can define system parameters, manage and control the switch, the connected stack and all its ports, or monitor network conditions. The following table briefly describes the selections available from this program. Menu Description System...

  • Page 75: System Information

    System Information System Information Use the System Information screen to display descriptive information about the switch, or for quick system identification as shown in the following figure and table. Parameter Description Name assigned to the switch system. System Name* IP address of the agent you are managing. The agent supports SNMP over UDP/ IP Address IP transport protocol.

  • Page 76: Switch Information

    Web-Based Management Switch Information Use the Switch Information screen to display hardware/firmware version numbers for the main board, as well as the power status and modules plugged into the system. Main Board Parameter Description Serial Number Serial number of the main board. Number of Ports Number of switch ports (including modules).

  • Page 77: Expansion Slot

    Switch Information Expansion Slot Parameter Description Expansion Slot 1 Shows module type if inserted (100BASE-FX, 1000BASE-SX, 1000BASE-LX, 1000BASE-GBIC or 1000BASE-T). 2-Port 100Base-FX-SC(MMF) : 100BASE-FX (multimode) 1-Port 1000Base-SX-SC : 1000BASE-SX (multimode) 1-Port 1000Base-LX-SC : 1000BASE-LX (singlemode) 1-Port 1000BASE-TX : 1000BASE-T 1-Port 1000Base-GBIC : 1000BASE-GBIC Expansion Slot Shows module type if inserted (100BASE-FX, 1000BASE-SX, 1000BASE-LX,...

  • Page 78: Ip Configuration

    Web-Based Management IP Configuration Use the IP Configuration screen to set the bootup option, configure the IP address for the on-board management agent, or set the number or concurrent Telnet sessions allowed. The screen shown below is described in the following table. Parameter Default Description...

  • Page 79: Snmp Configuration

    SNMP Configuration SNMP Configuration Use the SNMP Configuration screen to display and modify parameters for the Simple Network Management Protocol (SNMP). The stack should include an SNMP agent module which monitors the status of its hardware, as well as the traffic passing through its ports.

  • Page 80: Trap Managers

    Web-Based Management Trap Managers The following figure and table describe how to specify management stations that will receive authentication failure messages or other trap messages from the switch. Up to 5 trap managers may be entered. Parameter Description Trap Manager Capability Up to 5 trap managers may be used.

  • Page 81: Firmware Upgrade Options

    Firmware Upgrade Options Firmware Upgrade Options You can upgrade system firmware via a Web browser, a TFTP server, or a direct connection to the console port. Web Upload Management Use the Web Upload Management menu to load software updates into the switch. The upload file should be an OmniStack ®...

  • Page 82: Configuration Save And Restore

    Web-Based Management Configuration Save and Restore Use the Configure screen to save the switch configuration settings to a file on a TFTP server. The file can be later downloaded to the switch to restore the switch’s settings. The success of the operation depends on the accessibility of the TFTP server and the quality of the network connection.

  • Page 83: Address Table Configuration

    Address Table Configuration Address Table Configuration The Address Table contains the unicast MAC addresses and VLAN identifier associated with each port (that is, the source port), sorted by MAC address or VLAN. You can also clear the entire address table, or information associated with a specific address;...

  • Page 84: Spanning Tree Algorithm (Sta)

    Web-Based Management Spanning Tree Algorithm (STA) The Spanning Tree Algorithm can be used to detect and disable network loops, and to provide backup links between switches, bridges or routers. This allows the switch to interact with other bridging devices (that is, STA-compliant switch, bridge or router) in your network to ensure that only one route exists between any two stations on the network.

  • Page 85: Ports

    Spanning Tree Algorithm (STA) Ports The parameters shown in the following figure and table are for port STA Information. Parameter Description Port Status Displays the current state of this port within the spanning tree: No Link No link has been established on this port. Disabled Port has been disabled by the user or has failed diagnostics.

  • Page 86: Spanning Tree Configuration

    Web-Based Management Spanning Tree Configuration The following figures and tables describe Bridge STA configuration. Switch Parameter Default Description Usage Enabled Enable this parameter to participate in an STA compliant network. Priority 32,768 Device priority is used in selecting the root device, root port, and designated port.

  • Page 87: Sta Port Configuration

    Spanning Tree Algorithm (STA) STA Port Configuration The following figure and table describe STA configuration for ports or modules. Parameter Default Description Fast Forwarding Enabled See “Fast Forward” in this table. Mode (All Ports) Priority Defines the priority for the use of a port in the STA algorithm. If the path cost for all ports on a switch are the same, the port with the highest priority (i.e., lowest value) will be configured as an active link in the spanning tree.

  • Page 88: Configuring Bridge Mib Extensions

    Web-Based Management Configuring Bridge MIB Extensions The Bridge MIB includes extensions for managed devices that support Traffic Classes and Virtual LANs. To display and configure these extensions, use the Bridge Extension screen as shown below: Bridge Capability Parameter Description Extended Multicast Enables filtering of individual multicast addresses based on GMRP (GARP Multicast Filtering Services* Registration Protocol).

  • Page 89: Bridge Settings

    Configuring Bridge MIB Extensions Bridge Settings Parameter Description Traffic Classes* Multiple traffic classes are supported by this switch as indicated under Bridge Capabilities. However, you can disable this function by clearing the check box for this parameter. GMRP* GARP Multicast Registration Protocol (GMRP) allows network devices to register endstations with multicast groups.

  • Page 90: Priority

    Web-Based Management Priority IEEE 802.1P defines up to 8 separate traffic classes. This switch supports Quality of Service (QoS) by using two priority queues, with strict priority queuing for each port. You can use the Priority Menu to configure the default priority for each port, or to display the mapping for the traffic classes.

  • Page 91: Port Traffic Class Information

    Management Configuration Port Traffic Class Information This switch provides two priority levels with strict priority queuing for port egress. This means that any frames with a default or user priority from 0~3 are sent to the low priority queue “0” while those from 4~7 are sent to the high priority queue “1” as shown in the following screen.

  • Page 92: Configuring Virtual Lans

    Web-Based Management Configuring Virtual LANs You can use the VLAN configuration menu to assign any port on the switch to any of up to 256 LAN groups. In conventional networks with routers, broadcast traffic is split up into separate domains. Switches do not inherently support broadcast domains.

  • Page 93: Vlan Current Table

    Configuring Virtual LANs VLAN Current Table This screen shows the current port members of each VLAN and whether or not the port supports VLAN tagging. Ports assigned to a large VLAN group that crosses several switches should use VLAN tagging. However, if you just want to create a small port-based VLAN for one or two switches, you can assign ports to the same untagged VLAN.

  • Page 94: Vlan Static List

    Web-Based Management VLAN Static List Use this screen to create or remove VLAN groups. Parameter Description Current Lists all the current VLAN groups created for this system. Up to 256 VLAN groups can be defined. To allow this switch to participate in a VLAN group that extends beyond this switch, you must add the VLAN ID for the required external groups.

  • Page 95: Vlan Static Table

    Configuring Virtual LANs VLAN Static Table Use this screen to modify the settings for an existing VLAN. You can add/delete port members for a VLAN from any unit in the stack. (Note that VLAN 1 is fixed as an untagged VLAN containing all ports in the stack, and cannot be modified via this screen.) Parameter Description...
  • Page 96 Web-Based Management Use the menu shown below to prevent a port from being dynamically added to the displayed VLAN group through GVRP. Parameter Description Forbidden Egress Ports Prevents a port from being automatically added to this VLAN via GVRP. Note that GVRP is not supported by the current firmware version.

  • Page 97: Vlan Static Membership By Port

    Configuring Virtual LANs VLAN Static Membership by Port Use the screen shown below to assign VLAN groups to the selected port. To perform detailed port configuration for a specific VLAN, use the VLAN Static Table (page 3-27). Parameter Description Port Number Port number on the switch selected from the upper display panel.

  • Page 98: Vlan Port Configuration

    Web-Based Management VLAN Port Configuration Use this screen to configure port-specific settings for IEEE 802.1Q VLAN features. Parameter Description PVID The VLAN ID assigned to untagged frames received on this port. Use the PVID to assign ports to the same untagged VLAN. Acceptable Frame Type This switch accepts “All”...

  • Page 99: Igmp Multicast Filtering

    IGMP Multicast Filtering IGMP Multicast Filtering Multicasting is used to support real-time applications such as video conferencing or streaming audio. A multicast server does not have to establish a separate connection with each client. It merely broadcasts its service to the network, and any hosts that want to receive the multicast register with their local multicast switch/ router.

  • Page 100: Ip Multicast Registration Table

    Web-Based Management IP Multicast Registration Table Use the IP Multicast Registration Table to display all the multicast groups active on this switch, including multicast IP addresses and the corresponding VLAN ID. Parameter Description VLAN ID VLAN ID assigned to this multicast group. Multicast IP Address IP address for specific multicast services.

  • Page 101: Port Menus

    Port Menus Port Menus Port Information The Port Information screen displays the port status, link state, the communication speed and duplex mode, as well as the flow control in use. To change any of the port settings, use the Port Configuration menu. The parameters are shown in the following figure and table.

  • Page 102: Port Configuration

    Web-Based Management Port Configuration Use the Port Configuration menu to configure any port on the switch. Parameter Default Description Flow control mode Disabled See “Flow Control Status” in this table. (on all ports) Admin Status Enable Allows you to disable a port due to abnormal behavior, and then re-enable it after the problem has been resolved.

  • Page 103: Expansion Port Information

    Port Menus Expansion Port Information The Expansion Port Information screen displays the port status, link state, the communication speed and duplex mode, as well as the flow control in use. To change any of the port settings, use the Expansion Port Configuration menu. The parameters shown in the following figure and table are for expansion ports.

  • Page 104: Expansion Port Configuration

    Web-Based Management Expansion Port Configuration Use the Expansion Port Configuration menus to configure any module port on the switch. Parameter Default Description Admin Status Enable Allows you to disable a port due to abnormal behavior, and then re-enable it after the problem has been resolved. You may also disable a port for security reasons.

  • Page 105: Port Broadcast Storm Protect Configuration

    Port Menus Port Broadcast Storm Protect Configuration Use the Port Broadcast Storm Protect Configuration screen to configure broadcast storm control for any port on the switch. Parameter Default Description Broadcast Storm Enabled Allows you to enable/disable broadcast storm control for all ports Protect Mode on the switch.

  • Page 106: Port Security Configuration

    Web-Based Management Port Security Configuration Use the Port Security Configuration screen to enable and configure port security for the switch. Port Security allows you to configure each port with a list of MAC addresses of devices that are authorized to access the network through that port. Parameter Description Port Number...

  • Page 107: Using A Port Mirror For Analysis

    Using a Port Mirror for Analysis Using a Port Mirror for Analysis You can mirror traffic from any source port to a target port for real-time analysis. You can then attach a network sniffer or RMON probe to the target port and study the traffic crossing the source port in a completely unobtrusive manner.

  • Page 108: Port Trunk Configuration

    Web-Based Management Port Trunk Configuration Port trunks can be used to increase the bandwidth of a network connection or to ensure fault recovery. You can configure up to five trunk connections (combining 2~4 ports into a fat pipe) between any two standalone OmniStack ®...
  • Page 109 Port Trunk Configuration Use the Port Trunking Configuration screen to set up port trunks as shown below: Parameter Description Trunk A unique identifier for this trunk. You can configure up to five trunks per switch. Status Enables or disables the displayed trunk. Member List You can create up to 12 trunks for the entire stack by specifying the trunk identifier, switch unit and port number, and then clicking on the “Add”...

  • Page 110: Port Statistics

    Web-Based Management Port Statistics Use the Port Statistics menu to display Etherlike or RMON statistics for any port on the switch. The statistics displayed are indicated in the following figure and table. Etherlike Statistics Etherlike Statistics display key statistics from the Ethernet-like MIB for each port. Error statistics on the traffic passing through each port are displayed.

  • Page 111: Rmon Statistics

    Port Statistics RMON Statistics RMON Statistics display key statistics for each port or media module from RMON group 1. (RMON groups 2, 3 and 9 can only be accessed using SNMP management software.) The following screen displays overall statistics on traffic passing through each port.
  • Page 112 Web-Based Management Parameter Description 256-511 Byte Frames The total number of packets (including bad packets) received and transmitted that were between 256 and 511 octets in length inclusive (excluding framing bits but including FCS octets). 512-1023 Byte Frames The total number of packets (including bad packets) received and transmitted that were between 512 and 1023 octets in length inclusive (excluding framing bits but including FCS octets).

  • Page 113: Advanced Topics

    Chapter 4: Advanced Topics ® The OmniStack 6148 supports Layer 2 switching and other advanced features, which are described in this chapter. Layer 2 Switching When a frame enters a port, its destination MAC address is checked in the address database to see which port leads to this destination.

  • Page 114: Virtual Lans

    Advanced Topics Once a stable network topology has been established, all bridges listen for Hello BPDUs (Bridge Protocol Data Units) transmitted from the Root Bridge. If a bridge does not get a Hello BPDU after a predefined interval (Maximum Age), the bridge assumes that the link to the Root Bridge is down.

  • Page 115: Assigning Ports To Vlans

    Virtual LANs This switch supports the following VLAN features: • Up to 256 VLANs based on the IEEE 802.1Q standard • Distributed VLAN learning across multiple switches using explicit or implicit tagging and GVRP protocol • Port overlapping, allowing a port to participate in multiple VLANs •...

  • Page 116: Forwarding Traffic With Unknown Vlan Tags

    Advanced Topics GVRP-compliant devices to be automatically configured for VLAN groups based solely on endstation requests. Forwarding Traffic with Unknown VLAN Tags This switch only supports 256 VLANs with VLAN IDs ranging from 1 to 2048, but the IEEE 802.1Q VLAN standard allows for VLAN IDs from 1 to 4094. Therefore, if this switch is attached to endstations that issue VLAN registration requests, it will have to forward unknown VLAN tags.

  • Page 117: Multicast Filtering

    Multicast Filtering Multicast Filtering Multicasting sends data to a group of nodes instead of a single destination. The simplest way to implement multicasting is to broadcast data to all nodes on the network. However, such an approach wastes a lot of bandwidth if the target group is small compared to overall the broadcast domain.

  • Page 118: Class-Of-Service (Cos) Support

    Advanced Topics Class-of-Service (CoS) Support The OmniStack ® 6148 provides two transmit queues on each port, with a Weighted Fair Queuing scheme. This function can be used to provide independent priorities for various types of data such as real-time video or voice, and best-effort data. Priority assignment to a packet in the OmniStack ®...

  • Page 119: Remote Monitoring

    Remote Monitoring Remote Monitoring Remote Monitoring (RMON) provides a cost-effective way to monitor large networks by placing embedded or external probes on distributed network equipment (hubs, switches or routers). Network management software can access the probes embedded in network products to perform traffic analysis, troubleshoot network problems, evaluate historical trends, or implement proactive management policies.
  • Page 120 Advanced Topics...

  • Page 121: Troubleshooting

    Appendix A: Troubleshooting Troubleshooting Chart Troubleshooting Chart Symptom Action Cannot connect using • Be sure to have configured the agent with a valid IP address, subnet Telnet, Web browser, or mask and default gateway. SNMP software • Check that you have a valid network connection to the switch and that the port you are using has not been disabled.

  • Page 122: Upgrading Firmware Via The Serial Port

    2. When the system initialization screen appears as shown below, press “D” to download system firmware, and then indicate the code type (1: Runtime, 2: POST, 3: Mainboard). Alcatel OmniStack 6148 Alcatel OmniStack - Copyright (c), 2002 Alcatel and its licensors. All rights reserved. OmniStack is a trademark of Alcatel registered in the United States Patent and Trademark Office.
  • Page 123 Upgrading Firmware via the Serial Port 3. After the file has been downloaded, the console screen will display information similar to that shown below. Press “s” to start the management interface, change the baud rate back to 9600, and press Enter. The Logon screen will then appear. XModem Download to DRAM buffer area 0x00200000: ...
  • Page 124 Troubleshooting...

  • Page 125: Pin Assignments

    Appendix B: Pin Assignments Console Port Pin Assignments The DB-9 serial port on the switch’s rear panel is used to connect to the switch for out-of-band console configuration. The on-board menu-driven configuration program can be accessed from a terminal, a PC running a terminal emulation program. The pin assignments used to connect to the serial port are provided in the following tables.
  • Page 126 Pin Assignments...

  • Page 127: Glossary

    Glossary Bandwidth Utilization The percentage of packets received over time as compared to overall bandwidth. BOOTP Boot protocol used to load the operating system for devices connected to the network. GARP VLAN Registration Protocol (GVRP) Defines a way for switches to exchange VLAN information in order to register necessary VLAN members on ports along the Spanning Tree so that VLANs defined in each switch can work automatically over a Spanning Tree network.
  • Page 128 Glossary Link Aggregation See Port Trunk. An acronym for Management Information Base. It is a set of database objects that contains information about the device. It defines variables needed by the SNMP protocol to monitor and control components in a network. Out-of-Band Management Management of the network from a station that is not attached to the network.
  • Page 129 Glossary Telnet Defines a remote communication facility for interfacing to a terminal device over TCP/IP. Trivial File Transfer Protocol (TFTP) The TCP/IP standard protocol for file transfer with minimal capability and minimal overhead. TFTP depends on the connectionless datagram delivery service, UDP. Virtual LAN (VLAN) A Virtual LAN is a collection of network nodes that share the same collision domain regardless of their physical location or connection point in the network.
  • Page 130 Glossary Glossary-4...

  • Page 131: Index

    Index Numerics 802.1P port priority 3-22 Etherlike statistics 3-42 802.1p port priority 4-6 expansion port 802.1Q VLANs 2-44 3-24 configuration 3-36 802.3x flow control 2-24 3-34 3-36 information 3-35 extended bridge configuration 2-40 3-20 analyzer port configuration 2-33 3-39 automatic VLAN registration 4-3 Fast Forwarding 3-19 Fast STA See Fast Forwarding 3-19...
  • Page 132 Index management STA 4-1 configuration 2-21 3-23 configuration 2-27 3-16 3-18 options 1-1 statistics software, SNMP 4-6 port 2-50 3-42 mirror port configuration 2-33 3-39 RMON 2-51 3-43 multicast strict priority queuing 2-41 3-22 filtering 4-5 switch configuration 2-23 configuring 2-37 3-31 switching registration table, displaying 2-54...
  • Page 133 Index access requirements 3-1 agent configuration 2-13 browser connection 1-3 interface configuration buttons 3-3 home page 3-2 login 3-2 main menu 3-6 panel display 3-3 passwords 3-2 upload 3-13 XModem downloads A-2 Index-3...
  • Page 134 Index Index-4...
  • Page 136 F3.0 E062002-R01 150200007100A...

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