Alcatel-Lucent OMNISTACK 6124 User Manual

Part No. 060144-10, Rev. A
February 2002

OmniStack® 6124

Users Guide

An Alcatel service agreement brings your company the assurance of 7x24 no-excuses
technical support. You’ll also receive regular software updates to maintain and
maximize your Alcatel product’s features and functionality and on-site hardware
replacement through our global network of highly qualified service delivery partners.
Additionally, with 24-hour-a-day access to Alcatel’s Service and Support web page,
you’ll be able to view and update any case (open or closed) that you have reported to
Alcatel’s technical support, open a new case or access helpful release notes, technical
bulletins, and manuals. 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
[e-mail].

This Manual documents OmniStack 6124 hardware and software.

The functionality described in this Manual is subject to change without notice.

Copyright
reproduced in whole or in part without the express written permission of Alcatel Internetworking,
Inc.

Alcatel
France. OmniSwitch
Omni Switch/Router™, SwitchExpert
Inc. All other brand and product names are trademarks of their respective companies.

©

2002 by Alcatel Internetworking, Inc. All rights reserved. This document may not be

®

and the Alcatel logo are registered trademarks of Compagnie Financiére Alcatel, Paris,

®

and OmniStack® are registered trademarks of Alcatel Internetworking, Inc.

SM

, the Xylan logo are trademarks of Alcatel Internetworking,

26801 West Agoura Road

Calabasas, CA 91301

[phone] FAX [phone]

[e-mail]

US Customer Support-[phone]

International Customer Support-[phone]

Internet-http://www.ind.alcatel.com

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. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions in
this guide, may cause interference to radio communications. Operation of this equipment
in a residential area is likely to cause interference, in which case the user will be required
to correct the interference at his own expense.

The user is cautioned that changes and modifications made to the equipment without
approval of the manufacturer could void the user’s authority to operate this equipment.
It is suggested that the user use only shielded and grounded cables to ensure compliance
with FCC Rules.

This digital apparatus does not exceed the Class A limits for radio noise emissions from
digital apparatus set out in the radio interference regulations of the Canadian
department of communications.

Le present appareil numerique níemet pas de bruits radioelectriques depassant les
limites applicables aux appareils numeriques de la Class A prescrites dans le reglement
sur le brouillage radioelectrique edicte par le ministere des communications du Canada.

Warning

Contents

Switch Management 1-1

Configuration Options 1-1

Backup Management Agent 1-1
Closed-Loop Stack 1-2

Required Connections 1-2

Console Port (Out-of-Band) Connections 1-2
In-Band Connections 1-3

Using the System Configuration Program 2-1

Login Screen 2-1
Console Configuration Navigation Keys and Buttons 2-3
Main Menu 2-4
System Information Menu 2-6

Displaying System Information 2-7
Displaying Switch Version Information 2-8

Management Setup Menu 2-9

Changing the Network Configuration 2-10

IP Configuration 2-11
IP Connectivity Test (Ping) 2-12

HTTP Configuration 2-13
Configuring the Serial Port 2-14
Assigning SNMP Parameters 2-15

Configuring Community Names 2-16

Configuring IP Trap Managers 2-17
Console Login Configuration 2-18
Downloading System Software 2-19

Using TFTP to Download Over the Network 2-19
Saving the System Configuration 2-20
Managing the Switch 2-21
Configuring the Banner Message 2-22

Configuring the Switch 2-23

Configuring Port Parameters 2-24
Viewing the Current Port Configuration 2-26
Using the Spanning Tree Algorithm 2-27

Configuring Bridge STA 2-27

Configuring STA for Ports 2-29
Viewing the Current Spanning Tree Information 2-30

Displaying the Current Bridge STA 2-31

Displaying the Current STA for Ports 2-32
Using a Mirror Port for Analysis 2-33
Configuring Port Trunks 2-34

i

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 2-45

802.1Q VLAN Static Table Configuration 2-46

802.1Q VLAN Port Configuration 2-48

Monitoring the Switch 2-49

Displaying Port Statistics 2-50
Displaying RMON Statistics 2-51
Displaying the Unicast Address Table 2-53
Displaying the IP Multicast Registration Table 2-54
Configuring Static Unicast Addresses 2-55

Resetting the System 2-56
Logging Off the System 2-56

Web-Based Management 3-1

Web-Based Configuration and Monitoring 3-1
Navigating the Web Browser Interface 3-2

Home Page 3-2
Configuration Options 3-3

Panel Display 3-3

Port State Display 3-4
Console Configuration 3-5

Main Menu 3-6
System Information 3-7
Switch Information 3-8

Main Board 3-8
Agent Module 3-8
Expansion Slot 3-9

IP Configuration 3-10
SNMP Configuration 3-11

SNMP Community 3-11
Trap Managers 3-12

Security Configuration 3-12

Change Password 3-12

Firmware Upgrade Options 3-13

Web Upload Management 3-13
TFTP Download Management 3-13

ii

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
Configuring Bridge MIB Extensions 3-20

Bridge Capability 3-20

Bridge Settings 3-21
Priority 3-22

Port Priority Configuration 3-22

Port Traffic Class Information 3-23
Management Configuration 3-23
Configuring Virtual LANs 3-24

VLAN Basic Information 3-24

VLAN Current Table 3-25

VLAN Static List 3-26

VLAN Static Table 3-27

VLAN Static Membership by Port 3-29

VLAN Port Configuration 3-30
IGMP Multicast Filtering 3-31

Configuring IGMP 3-31

IP Multicast Registration Table 3-32
Port Menus 3-33

Port Information 3-33

Port Configuration 3-34

Expansion Port Information 3-35

Expansion Port Configuration 3-36

Port Broadcast Storm Protect Configuration 3-37

Port Security Configuration 3-38
Using a Port Mirror for Analysis 3-39
Port Trunk Configuration 3-40
Port Statistics 3-42

Etherlike Statistics 3-42

RMON Statistics 3-43

Advanced Topics 4-1

Layer 2 Switching 4-1

Spanning Tree Algorithm 4-1

iii

Contents

Virtual LANs 4-2

Assigning Ports to VLANs 4-3

Port Overlapping 4-3

Automatic VLAN Registration (GVRP) 4-3

Forwarding Traffic with Unknown VLAN Tags 4-4
Forwarding Tagged/Untagged Frames 4-4
Connecting VLAN Groups 4-4

Multicast Filtering 4-5

IGMP Snooping 4-5
IGMP Protocol 4-5

Class-of-Service (CoS) Support 4-6
Port Trunks 4-6
SNMP Management Software 4-6
Remote Monitoring 4-7

Troubleshooting A-1

Troubleshooting Chart A-1
Upgrading Firmware via the Serial Port A-2

Pin Assignments B-1

Console Port Pin Assignments B-1

DB-9 Port Pin Assignments B-1
Console Port to 9-Pin DTE Port on PC B-1
Console Port to 25-Pin DTE Port on PC B-1

Glossary

Index

iv

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).

The management agent is based on SNMP (Simple Network Management
Protocol). This SNMP agent permits the OmniStack
managed from any PC in the network using in-band management software.

The management agent also includes an embedded HTTP Web agent. This Web
agent can be accessed using a standard Web browser from any computer attached
to the network.

The system configuration program and the SNMP agent support management
functions such as:

• Enable/disable any port

• Set the communication mode for any port

• Configure SNMP parameters

• Configure VLANs or multicast filtering

• Display system information or statistics

• Configure the switch to join a Spanning Tree

• Download system firmware

• Restart the system

Backup Management Agent

Note the following points about master and backup management agents:

• The OS-6124 with software version 3.0 supports a master management agent and
a backup management agent. The agent with the lower stack ID will be the master.
If the system up time of the master is greater than 10 minutes, it downloads data
to the backup agent. Any configuration changes made to the master agent will be
synchronized with the backup agent within 1-2 minutes of the user selecting the
“apply” command.

• Up to a maximum of two Management Modules (one master and one back-up),
may exist within a stackable configuration, which may consist of up to six switches
in a stack.

• The Management Modules (master or backup) cannot be “hot” inserted. The “hot”
removal of the master or the backup Management Module will cause system
instability and will require a manual reboot of the entire stack.

• The master management does not synchronize the application software with that
of the backup management. Therefore, before insertion of the backup
Management Module, one must make sure that it contains the same application
software as the master Management Module (version 3.0 or greater). The master

®

6124 (OS-6124) to be

1-1

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.

- The fail-over time of master management to that of the backup management in

a medium-size stackable configuration is approximately 2 minutes.
Consequently network traffic is disrupted during the fail-over period.

- The backup management’s “Backup Master” state changes to a “Master” state

and the switch Unit IDs will also reflect the new change.

- All ports will still be active and the switch will continue forwarding traffic in a

normal operative manner.

- If a Management Module were to be re-installed, the newly-installed

Management Module would assume the role of “Master” agent with the
incumbent one changing status to that of “Backup Master” agent.

Closed-Loop Stack

Up to six OS-6124 switches can be stacked together by installing optional Stacking
Modules. The OS-6100-RST-KIT Redundant Stacking Module kit allows you to
configure a closed-loop architecture that provides fault-tolerant operation of the
stack. If a switch or Stacking Module fails, the operation and management of the
stack remains unaffected. This also allows a switch to be powered down and
removed from a stack without disrupting the rest of the stack.

Note: The Redundant Stacking Module must be installed with the master Management

Module in Unit 1 only. If backup management is used in conjunction with the
closed-loop feature, the backup Management Module must be installed in Unit 2.

Required Connections

Console Port (Out-of-Band) Connections

Attach a VT100 compatible terminal or a PC running a terminal emulation program
to the serial port on the switch’s rear panel. Use the null-modem cable provided with
this package, or use a null modem connection that complies with the wiring
assignments shown in Appendix B of this guide.

When attaching to a PC, set terminal emulation type to VT100, specify the port used
by your PC (i.e., COM 1~4), and then set communications to 8 data bits, 1 stop bit,
no parity, and 9600 bps (for initial configuration). Also be sure to set flow control to
“none.” (Refer to “Configuring the Serial Port” on page 2-14 for a complete
description of configuration options.)

Note: If the default settings for the management agent’s serial port have been

1-2

modified and you are having difficulty making a console connection, you can
display or modify the current settings using a Web browser as described under
“Console Configuration” on page 3-5.

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” on page 2-11.

After configuring the switch’s IP parameters, you can access the on-board
configuration program from anywhere within the attached network. The on-board
configuration program can be accessed using Telnet from any computer attached to
the network. The switch and stack can also be managed by any computer using a
Web browser (Internet Explorer 4.0, or Netscape Navigator 4.0 or above), or from a
network computer using network management software.

Notes: 1. Use the Network Configuration menu to specify the maximum number of

simultaneous Telnet sessions that are supported by the system (up to four).

2. The on-board program only provides access to basic configuration functions.
To access the full range of SNMP management functions, you must use
SNMP-based network management software.

1-3

Switch Management

1-4

Chapter 2: 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 6124

Alcatel Internetworking

26801 West Agoura Road
Calabasas, CA, 91301

[phone]

Copyright (c), 2002 Alcatel and its licensors.

OmniStack is a trademark of Alcatel registered in
the United States Patent and Trademark Office.

If this is your first time to log into the configuration program, then the default user
names are “admin” and “user,” both with a default password of “switch.” The
administrator has Read/Write access to all configuration parameters and statistics.
The user has Read Only access to the management program.

You should define a new administrator password, record it and put it in a safe place.
Select Console Login Configuration from the Management Setup Menu and enter a
new password for the administrator. Note that passwords can consist of up to 11
alphanumeric characters and are not case sensitive.

Notes: 1. Based on the default configuration, a user is allowed three attempts to enter

the correct password; on the third failed attempt the current connection is
terminated.

2. A banner message may be configured to appear before the Login screen.
The banner message is a login security alert. (See “Configuring the Banner
Message” on page 2-22.)

Alcatel OmniStack

All rights reserved.

Username :
Password :

2-1

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:

About
This Product

Management
Setup Menu

Switch
Configuration
Menu

Network
Monitor Menu

Reset
System Menu

System Information
Switch Information

Network Configuration
Serial Port Configuration
SNMP Configuration
Console Login Configuration
TFTP Download
Configuration Save & Restore
Management Configuration
Banner Message Configuration

Port Configuration
Port State
Spanning Tree Configuration
Spanning Tree Information

Port Configuration

Mirror
Port Trunking Configuration
IGMP Configuration
BStorm Control Configuration
Port Security
Extented Bridge Configuration

802.1P Configuration

802.1Q VLAN Base Information

802.1Q VLAN Current Table Information

802.1Q VLAN Static Table Configuration

802.1Q VLAN Port Configuration
Port GARP Configuration*
Port GMRP Configuration*

Port Statistics
RMON Statistics
Unicast Address Table
Multicast Address Registration Table*
IP Multicast Registration Table
Static Unicast Address Table Configuration
Static Multicast Address Table Configuration*

IP Configuration
IP Connectivity Test(Ping)
HTTP Configuration

SNMP Communities
IP Trap Managers

STA Bridge Configuration
STA Port Configuration

STA Bridge State
STA Port State

802.1P Port Priority Configuration

802.1P Port Traffic Class Information

Quit Current
Session

* Not implemented in this firmware release.

2-2

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. To change a setting,
type in the parameter field or scroll through fixed options using the <Space> bar. If
you make a configuration change on a screen, be sure to select the <APPLY> or
<OK> button at the bottom of the screen to confirm the new setting.

The following table summarizes common screen configuration buttons.

Console Screen Configuration Buttons and Keys

Button/Key Action

<APPLY> Sets specified values in the manag eme nt age nt.
<OK> Sets specified values in the management agent and returns to the previous

<CANCEL> Cancels any modified screen settings (prior to pressing the <APPLY> button)

<PREV UNIT> Selects the switch stack unit with the stack ID one less than the current unit.
<NEXT UNIT> Selects the switch stack unit with the stack ID one more than the current unit.
<PREV PAGE> Displays the previous page of data for the current screen.
<NEXT PAGE> Displays the next page of data for the current screen.
<TAB> Key Moves to the next selectable item in the screen.
<Arrow> Keys Moves to the next selectable item (left/right/up/down) in the screen.
<Enter> Key Selects the highlighted item in a screen.

screen.

and returns to the previous screen.

2-3

Using the System Configuration Program

Main Menu

With the system configuration program you can define system parameters, manage
and control the switch, the connected stack and all its ports, or monitor network
conditions. The figure below of the Main Menu and the following table briefly
describe the selections available from this program.

Note: Options for the currently selected item are displayed in the highlighted area at the

bottom of the interface screen.

Alcatel OmniStack 6124

< Main Menu >

About this product

Management Setup Menu

Switch Configuration Menu

Network Monitor Menu

Reset System Menu

Quit Current Session

Use <TAB> or arrow keys to move. <Enter> to select.

Menu Description

About this product

System Information Provides basic system description, including contact information.
Switch Information Shows hardware/firmware version numbers, power status, and

expansion modules used in the stack.

Management Setup Menu

Network Configuration Includes IP setup, Ping facility, HTTP (Web agent) setup, Telnet

configuration, and MAC address.

Serial Port Configuration Sets communication parameters for the serial port, including

management mode, baud rate, console time-out, and screen data

refresh interval.
SNMP Configuration Activates traps; configures communities and trap managers.
Console Login Configuration Sets user names and passwords for system access, as well as the

invalid password threshold and lockout time.
TFTP Download Downloads new version of firmware to update your system (in-band).
Configuration Save & Restore Saves the switch configuration to a file on a TFTP server. This file can

be later downloaded to restore the configuration.
Management Configuration Allows management access to the switch from all VLANs or only from a

specified VLAN.
Banner Message Configuration Configures a login security alert message.

2-4

Main Menu

Menu Description

Device Control Menu

Port Configuration Enables any port, enables/disables flow control, and sets

Port State Displays operational status, including link state, flow control method,

Spanning Tree Configuration Enables Spanning Tree Algorithm; also sets parameters for hello time,

Spanning Tree Information Displays full listing of parameters for the Spanning Tree Algorithm.
Mirror Port Configuration Sets the source and target ports for mirroring.
Port Trunking Configuration Specifies ports to group into aggregate trunks.
IGMP Configuration Configures IGMP multicast filtering.
BStorm Control Configuration Allows you to enable/disable broadcast storm control on a per-port basis

Port Security Configuration Allows you to enable and configure port security for the switch.
Extended Bridge Configuration Displays extended bridge capabilities provided by this switch.

802.1P Configuration Configures default port priorities and queue assignments.

802.1Q VLAN
Base Information

802.1Q VLAN Current Table
Information

802.1Q VLAN Static Table
Configuration

802.1Q VLAN
Port Configuration

Port GARP Configuration* Configures settings used in multicast filtering.
Port GMRP Configuration* Configures GMRP multicast filtering.

Network Monitor Menu

Port Statistics Displays statistics on network traffic passing through the selected port.
RMON Statistics Displays detailed statistical information for the selected port such as

Unicast Address Table Provides full listing for unicast addresses, as well as search and clear

Multicast Address Registra tion
Table*

IP Multicast Registration Table Displays all the multicast groups active on this switch, including

Static Unicast Address Table
Configuration

Static Multicast Address Table
Configuration*

Reset System Menu Restarts system with options to use POST, or to retain factory defaults,

Quit Current Session Exits the configuration progra m.

Not implemented in this firmware release.

*

communication mode to auto-negotiation, full duplex or half duplex.

and duplex mode.

maximum message age, switch priority, and forward delay; as well as
port priority, path cost, and fast forwarding.

and set the packet-per-second threshold.

Displays basic VLAN information, such as VLAN version number and
maximum VLANs supported.

Displays VLAN groups and port members.

Configures VLAN groups via static assignments, including setting port
members, or restricting ports from being dynamically added to a port by
the GVRP* protocol.

Displays/configures port-specific VLAN settings, including PVID,
ingress filtering, and GVRP*.

packet type and frame size counters.

functions.
Provides full listing for multicast addresses, as well as search and clear

functions.

multicast IP addresses and corresponding VLAN IDs.
Used to manually configure host MAC addresses in the unicast table.

Used to manually configure host MAC addresses in the multicast table.

IP settings, or user authentication settings.

2-5

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 6124

< About this product >

System Information

Switch Information

Use <TAB> or arrow keys to move. <Enter> to select.

<Ok>

Menu Description

System Information Provides basic system description, including contact information.
Switch Information Shows hardware/firmware version numbers, power status, and

expansion modules used in the stack.

2-6

System Information Menu

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 6124

< System Information >

System Description : Alcatel OmniStack 6124

System Object ID : 1.3.6.1.4.1.800.3.1.1.9

System Up Time : 244157 (0 day 0 hr 40 min 41 sec)

Network Host Name : OmniStack 6124

System Contact :

System Location :

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, other keys to make changes.

Parameter Description

System Description System hardware description.
System Object ID MIB II object identifier for switch’s network management subsystem.
System Up Time Length of time the current management agent has been running.

(Note that the first value is 1/100 seconds.)
Network Host Name* Name assigned to the switch system.
System Contact* Contact person for the system.
System Location* Specifies the area or location where the system resides.

Maximum string length is 255, but the screen only displays 45 characters. You can use the arrow keys to

*

browse the whole string.

2-7

Using the System Configuration Program

Displaying Switch Version Information

Use the Switch Information screen to display hardware/firmware version numbers
for the main board, as well as the power status.

Alcatel OmniStack 6124

< Switch Information > Unit 1

Label

P/N : S/N : Revision :
Hardware Version : V3.0 Firmware Version : V1.29
Serial Number : 00-CB-00-00-00-00 Port Number : 26

Internal Power Status : Active Redundant Power Status : Inactive

Expansion Slot 1 : 2Port 100Base-FX(MMF)
Expansion Slot 2 : GBIC
Model Type : Alcatel OmniStack 6124

Label

P/N : }-613526 S/N : 01150331 Revision : 1
Hardware Version : V3.0 (850 CPU) POST ROM Version : V1.31
Firmware Version : V3.003 SNMP Agent : Master

<Ok> <Up unit> <Down unit>

Use <TAB> or arrow keys to move. <Enter> to select.

Main Board

Agent Module

Parameter Description

Main Board

Label Indicates the Part Number, Serial Number, and Revision Number of the main

board.
Hardware Version Hardware version of the main board.
Firmware Version System firmware version in ROM.
Serial Number The serial number of the main board.
Port Number Number of ports on the switch (including modules).
Internal Power Status Indicates if the primary power is active or inactive.
Redundant Power StatusIndicates if the redundant power is active or inactive.
Expansion Slot 1 Shows module type if inserted:

(100BASE-FX, 1000BASE-SX, 1000BASE-LX, 1000BASE-T or GBIC).
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 6124).

Agent Module

Label Indicates the Part Number, Serial Number, and Revision Number of the agent

board.
Hardware Version Hardware version of the agent module.
POST ROM Version Power-On Self-Test version number.
Firmware Version Firmware version of the agent module.
SNMP Agent Shows if this module is Master or Backup Master.

2-8

Management Setup Menu

Management Setup Menu

After initially logging onto the system, adjust the communication parameters for your
console to ensure a reliable connection (Serial Port Configuration). Specify the IP
addresses for the switch (Network Configuration / IP Configuration), and then set the
Administrator and User passwords (Console Login Configuration). Remember to
record them in a safe place. 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 6124

< Management Setup Menu >

Network Configuration
Serial Port Configuration
SNMP Configuration
Console Login Configuration
TFTP Download New Software
Configuration Save & Restore
Management Configuration ...
Banner Message Configuration

Use <TAB> or arrow keys to move. <Enter> to select.

<Ok>

Menu Description

Network Configuration Includes IP setup, Ping facility, HTTP (Web agent) setup, Telnet

configuration, and MAC address.

Serial Port Configuration Sets communication parameters for the serial port, including

management mode, baud rate, console time-out, and screen data

refresh interval.
SNMP Configuration Activates traps; configures communities and trap managers.
Console Login Configuration Sets user names and passwords for system access, as well as the

invalid password threshold and lockout time.
TFTP Download Downloads new version of firmware to update your system (in-band).
Configuration Save & Restore Saves the switch configuration to a file on a TFTP server. This file can

be later downloaded to restore the configuration.
Management Configuration Allows management access to the switch from all VLANs or only from

a specified VLAN.
Banner Message Configuration Configures a banner message. The banner message is a login

security alert message.

2-9

Using the System Configuration Program

Changing the Network Configuration

Use the Network Configuration menu to set the bootup option, configure the switch’s
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 6124

< Network Configuration >

IP Configuration

IP Connectivity Test(Ping)

HTTP Configuration

MAX Number of allowed Telnet sessions (1-4) : 4

Physical Address : 00-10-B5-4C-1E-B6

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move. <Enter> to select.

Parameter Description

IP Configuration Screen used to set the bootup option, or configure the switch’s IP

parameters.
IP Connectivity Test (Ping) Screen used to test IP connectivity to a specified device.
HTTP Configuration Screen used to enable the Web agent.
MAX Number of Allowed Telnet

Sessions

The maximum number of Telnet sessions allowed to simultaneously

access the agent module.
Physical Address Physical address of the agent module.

2-10

Management Setup Menu

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 6124

< IP Configuration >

Interface Type : Ethernet

IP Address : 192.168.10.1

Netmask : 255.255.255.0

Default Gateway :

IP State : USER-CONFIG

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, other keys to make changes.

Parameter Default Description

Interface Type Indicates that all interfaces on the switch are Ethernet. Management

IP packets from the switch are encapsulated within an Ethernet frame
for transmission over the Ethernet network.

IP Address 192.168.10.1 IP address of the stack you are managing. The system supports

SNMP over UDP/IP transport protocol. In this environment, all
systems on the Internet, such as network interconnection devices
and any PC accessing the agent module (or running management
software) must have an IP address.

Valid IP addresses consist of four decimal numbers, of 0 to 255,
separated by periods. Anything outside of this format will not be
accepted by the configuration program.

Netmask 255.255.255.0 Subnet mask of the switch you have selected. This mask identifies

the host address bits used for routing to specific subnets.

Default Gatew ay Gateway used to pass trap mes sag es f rom the sys tem ’s a gen t to the

management station. Note that the gateway must be defined if the
management station is located in a different IP segment. No gateway
IP address is configured as the default.

IP State USER-CONFIG Specifies whether IP functionality is enabled via manual

configuration, or set by Boot Protocol (BOOTP). Options include:
USER-CONFIG - IP functionality is enabled based on the default or

user specified IP Configuration. (This is the default setting.)
BOOTP Get IP - IP is enabled but will not function until a BOOTP

reply has been received. BOOTP requests will be periodically
broadcast by the switch in an effort to learn its IP address. (BOOTP
values can include the IP address, default gateway, subnet mask,
and TFTP server IP.)

2-11

Using the System Configuration Program

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 6124

< IP Connectivity Test(Ping) >

IP Address :

Test Times : 1 Interval : 3

Success : 0 Failure : 0

[Start]

Use <TAB> or arrow keys to move, other keys to make changes.

<Ok>

Parameter Description

IP Address IP address of the site you want to ping.
Test Times The number of ICMP echo requests to send to the specified site.

Range: 1~1000
Interval The interval (in seconds) between pinging the specified site.

Range: 1~10 seconds
Success/Failure The number of times the specified site has responded or not to

pinging.

2-12

Management Setup Menu

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 6124

< HTTP Configuration >

HTTP Server : ENABLED

HTTP Port Number : 80

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, <Space> to scroll options.

Parameter Description

HTTP Server Enables/disables access to the on-board Web agent.
HTTP Port Number Specifies the TCP port that will provide HTTP service.

Range : 0~65535
Default : Port 80
(Telnet Port 23 is prohibited.)

2-13

Using the System Configuration Program

Configuring the Serial Port

You can access the on-board configuration program by attaching a VT100
compatible device to the switch’s serial port. (For more information on connecting to
this port, see “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 6124

< Serial Port Configuration >

Management Mode : CONSOLE MODE

Baud rate : 9600
Data bits : 8
Stop bits : 1
Parity : NONE
Time-Out (in minutes) : 0
Auto Refresh (in seconds) : 5

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, <Space> to scroll options.

Parameter Default Description

Management Mode Console Mode Indicates that the console port settings are for direct console

connection.

Baud rate 9600 The rate at which data is sent between devices.

Options : 2400, 4800, 9600, 19200 and auto detection.
Note that when auto detection is selected, you need to first press the

Enter key once to set the data rate and initialize the connection.

Data bits 8 bits Sets the data bits of the RS-232 port.

Options : 7, 8

Stop bits 1 bit Sets the stop bits of the RS-232 port.

Options : 1, 2

Parity None Sets the parity of the RS-232 port.

Options : none/odd/even

Time-Out 10 minutes If no input is received from the attached device after this interval, the

current session is automatically closed.
Range : 0 - 100 minutes; where 0 indicates disabled

Auto Refresh 5 seconds Sets the interval before a console session will auto refresh the

console information, such as Spanning Tree Information, Port
Configuration, Port Statistics, and RMON Statistics.

Range : 0, or 5-255 seconds; where 0 indicates disabled

2-14

Management Setup Menu

Assigning SNMP Parameters

Use the SNMP Configuration screen to display and modify parameters for the
Simple Network Management Protocol (SNMP). The switch includes an on-board
SNMP agent which monitors the status of its hardware, as well as the traffic passing
through its ports. A computer attached to the network, called a Network
Management Station (NMS), can be used to access this information. Access rights
to the on-board agent are controlled by community strings. To communicate with the
switch, the 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 6124

< SNMP Configuration >

Send Authentication Fail Traps : ENABLED

SNMP Security

IP Trap Managers

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, <Space> to scroll options.

Parameter Description

Send Authentication Fail Traps Issue a trap message to specified IP trap managers whenever authentication

SNMP Communities Assigns SNMP access based on specified strings.
IP Trap Managers Specifies management stations that will receive authentication failure

of an SNMP request fails. (The default is disab led. )

messages or other trap messages from the switch.

2-15

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 6124

< SNMP Security >

Community Name Access Status

1. public READ ONLY ENABLED

2. private READ/WRITE ENABLED

3.

4.

5.

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, other keys to make changes.

Parameter Description

Community Name A community entry authorized for management access.

Default strings: public (read only), private (read/write)

Maximum string length : 20 characters
Access Management access is restricted to Read Only or Read/Write.
Status Sets administrative status of entry to enabled or disabled.

2-16

Management Setup Menu

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 6124

< IP Trap Managers >

IP Address Community Name Status

1. 10.1.0.23 public DISABLED

2.

3.

4.

5.

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, other keys to make changes.

Parameter Description

IP Address IP address of the trap manager.
Community Name A community specified for trap management access.
Status Sets administrative status of selected entry to enabled or disabled.

2-17

Using the System Configuration Program

Console Login Configuration

Use the Management Setup: Console Login Configuration to restrict management
access based on specified user names and passwords, or to set the invalid
password threshold and time-out. There are only two user types defined, ADMIN
(Administrator) and GUEST, but you can set up to five different user names and
passwords. Only Administrators have write access for parameters governing the
switch. You should therefore assign a user name and password to the default
Administrator as soon as possible, and store it in a safe place. (If for some reason
your password is lost, or you cannot gain access to the 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 6124

< Console Login Configuration >

Password Threshold : 3
Lock-out Time (in minutes) : 0

User Type User Name Password Confirm password

---------------------------------------------------------

1. ADMIN admin ****** ******

2. GUEST user ****** ******

3.

4.

5.

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, other keys to make changes.

Parameter Default Description

Password
Threshold

3 Sets the password intrusion threshold which limits the number of

failed logon attempts.
Range : 0~65535

Lock-out Time 0 The time (in seconds) the management console will be disabled

due to an excessive number of failed logon attempts.
Range : 0~65535 (0 indicates disabled)

Admin* name: admin

password: switch

Guest* name: user

Administrator has access privilege of Read/Write for all screens.

Guest has access privilege of Read Only for all screens.

password: switch

* Passwords can consist of up to 11 alphanumeric characters and are not case sensitive.

2-18

Management Setup Menu

Downloading System Software

Using TFTP to Download Over the Network

Use the TFTP Download menu to load software updates into the switch. The
download file should be an OmniStack

®

6124 binary file from Alcatel; otherwise the
agent will not accept it. The success of the download operation depends on the
accessibility of the 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 6124

< TFTP Download New Software >

Download Server IP :

Agent Software Upgrade : ENABLED

Download Filename :
Download Mode : PERMANENT

[Process TFTP Download]

Download status : Complete

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, other keys to make changes.

Parameter Description

Download Server IP IP address of a TFTP server.
Agent Software Upgrade Indicates that the switch is enabled for software upgrades.
Download Filename The binary file to download.
Download Mode Indicates a download to permanent flash ROM.

Note: You can also download firmware using the Web agent (page 3-13) or by a direct

console connection after a restart (page A-2).

2-19

Using the System Configuration Program

Saving the System Configuration

Use the Configuration Save & Restore menu 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.
Parameters shown on this screen are indicated in the following figure and table.

Alcatel OmniStack 6124

< Configuration Upload >

Upload Server IP :
Upload Filename :

[Process TFTP Upload]

Upload status : Complete

< Configuration Download >

Download Server IP :
Download Filename :

[Process TFTP Download]

Download status : Complete

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, other keys to make changes.

Parameter Description

Configuration Upload

Upload Server IP IP address of a TFTP server.
Upload Filename The name of the file to contain the switch configuration settings.
[Process TFTP Upload] Issues a request to upload the configuration settings to the specified file on

the TFTP server.

Upload Status Indicates if an upload is “Complete” or “In Progress.”

Configuration Download

Download Server IP IP address of a TFTP server.
Download Filename The name of the file that contains the switch configuration settings you wish

to restore.
[Process TFTP Download] Issues a request to the TFTP server to download the specified file.
Download Status Indicates if a download is “Complete” or “In Progress.”

2-20

Management Setup Menu

Managing the Switch

Use the Management Configuration screen to configure the management access of
the switch.

Alcatel OmniStack 6124

< Management Configuration >

Management VLAN : ONE

VLAN : 1

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, <Space> to scroll options.

Parameter Description

Management VLAN Allows management access to the switch from all VLANs or only from a

specified VLAN. If this field is set to “ONE” then the single VLAN with
management access must be set in the “VLAN” field.

VLAN The ID of the single VLAN with management access to the switch, if the

“Management VLAN” field is set to “ONE”.

2-21

Using the System Configuration Program

Configuring the Banner Message

The banner message is a login security alert message. It will be presented to a user
attempting to log into the switch via console or Telnet, before prompting for a user
name and password. Use the Banner Message Configuration screen to enter the
banner message.

You can type, or paste, the banner message into the screen one row at a time, using
the arrow keys to move from one row to the next. For example, to paste text using
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 6124

< Banner Message Configuration >

SECURITY ALERT
This is an Organization Z computer system. This computer system,
including all related equipment, networks, and network devices
(specifically including Internet access and access to restricted sites)
is provided only for authorized use. Organization Z computer systems may
be monitored for all lawful purposes, including to ensure that their use
is authorized for management of the system, to facilitate protection
against unauthorized access, and to verify security procedures,
survivability, and operational security. Monitoring includes active
attacks by authorized Organization Z entities to test or verify the
security of this system. During monitoring, information may be examined,
recorded, copied and used for authorized purposes. All information,
including personal information, placed or sent over this system may be
monitored.
Use of this Organization Z computer system, authorized or unauthorized,
constitutes consent to monitoring of this system. Unauthorized use may
subject you to criminal prosecution.

<Apply> <Ok> <Cancel> <Prev Page> <Next Page>

Use <TAB> or arrow keys to move, <Enter> to select.

Page : 1 Total 4 Pages

Note: After entering text, use <Apply> to confirm the text that you have entered or <OK>

to confirm the text and return to the Management Setup menu. Use <Cancel> to
cancel the text that you have just entered and return to the Management Setup
menu. Use <Prev Page> and <Next Page> to scroll through the banner message.

2-22

Configuring the Switch

Configuring the Switch

The Device Control menu is used to control a broad range of functions, including
port configuration, 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 6124

< Switch Configuration Menu >

Port Configuration Extended Bridge Configuration
Port State 802.1P Configuration
Spanning Tree Configuration 802.1Q VLAN Base Information
Spanning Tree Information 802.1Q VLAN Current Table Information
Mirror Port Configuration 802.1Q VLAN Static Table Configuration
Port Trunking Configuration 802.1Q VLAN Port Configuration
IGMP Configuration Port GARP Configuration
BStorm Control Configuration Port GMRP Configuration
Port Security Configuration

Use <TAB> or arrow keys to move. <Enter> to select.

Menu Description

Port Configuration Sets communication parameters for ports.
Port State Displays current port settings and port status.
Spanning Tree Configuration Configures the switch and its ports to participate in a local Spanning Tree.
Spanning Tree Information Displays the current Spanning Tree configuration for the switch and its ports.
Mirror Port Configuration Sets the source and target ports for mirroring.
Port Trunking Configuration Specifies ports to group into aggregate trunks.
IGMP Configuration Configures IGMP multicast filtering.
BStorm Control Configurati on Allows yo u to en able /disab le br oadca st st orm co ntro l on a p er-por t bas is an d

set the packet-per-second threshold.
Port Security Configuration Allows you to enable and configure port security for the switch.
Extended Bridge Configuration Displays/configures extended bridge capabilities provided by this

802.1P Configuration Configures default port priorities and queue assignments.

802.1Q VLAN
Base Information

802.1Q VLAN Current Table

Displays basic VLAN information, such as VLAN version number and

maximum VLANs supported.

Displays VLAN groups and port members.
Information

802.1Q VLAN Static Table
Configuration

Configures VLAN groups via static assignments, including setting port

members.

802.1Q VLAN Port ConfigurationDisplays/configures port-specific VLAN settings, including PVID and ingress

filtering.
Port GARP Configuration* Configures generic attribute settings used in the spanning tree protocol,

VLAN registration, multicast filtering.
Port GMRP Configuration* Configures GMRP multicast filtering.
* Not implemented in this firmware release.

<Ok>

switch.

2-23

Using the System Configuration Program

Configuring Port Parameters

Use the Port Configuration menus to set or display communication parameters for
any port or module in the stack.

Alcatel OmniStack 6124

< Port Configuration > Unit 1 Port 1 - 12

Flow Control on all ports : [Enable] [Disable]

Port Type Admin Flow Control Speed and Duplex

------------------------------------------------------------------­1 10/100TX ENABLED DISABLED AUTO
2 10/100TX ENABLED DISABLED AUTO
3 10/100TX ENABLED DISABLED AUTO
4 10/100TX ENABLED DISABLED AUTO
5 10/100TX ENABLED DISABLED AUTO
6 10/100TX ENABLED DISABLED AUTO
7 10/100TX ENABLED DISABLED AUTO
8 10/100TX ENABLED DISABLED AUTO
9 10/100TX ENABLED DISABLED AUTO

10 10/100TX ENABLED DISABLED AUTO
11 10/100TX ENABLED DISABLED AUTO
12 10/100TX ENABLED DISABLED AUTO

<Apply> <Ok> <Cancel> <Up Unit> <Down Unit> <Prev Page> <Next Page>

Use <TAB> or arrow keys to move. <Enter> to select

Parameter Default Description

Flow Control

Disabled See “Flow Control” in this table.

on all ports
Type Shows port type as:

10/100TX: 10BASE-T / 100BASE-TX
100FX: 100BASE-FX
1000SX: 1000BASE-SX
1000LX: 1000BASE-LX
1000T: 1000BASE-T
GBIC: 1000BASE-X Transceiver

Admin Enabled Allows you to disable a port due to abnormal behavior (e.g., excessive

collisions), and then re-enable it after the problem has been resolved.
You may also disable a port for security reasons.

Flow Control Disabled Used to enable or disable flow control. Flow control can eliminate

frame loss by “blocking” traffic from end stations or segments
connected directly to the switch when its buffers fill. IEEE 802.3x flow
control is used for full duplex. Note that flow control should not be used
if a port is connected to a hub.

2-24

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
1000BASE-LX 1000M auto auto
1000BASE-T 10/100/1000M auto auto

The

1000BASE-SX and 1000BASE-LX ports are fixed at 1000 Mbps
but autonegotiate duplex mode. The 1000BASE-T autonegotiates
duplex mode and autonegotiates speed to 10/100/100 Mbps. The
100BASE-FX
mode. All media types can autonegotiate flow control.

module is fixed at the indicated speed and duplex

2-25

Using the System Configuration Program

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 6124

< Port State > Unit 1 Port 1 - 12

Port Type Operational Link FlowControl Speed and

-----------------------------------------------------------------­1 10/100TX YES DOWN -------------- ---------­2 10/100TX YES DOWN -------------- ---------­3 10/100TX YES DOWN -------------- ---------­4 10/100TX YES DOWN -------------- ---------­5 10/100TX YES DOWN -------------- ---------­6 10/100TX YES DOWN -------------- ---------­7 10/100TX YES DOWN -------------- ---------­8 10/100TX YES DOWN -------------- ---------­9 10/100TX YES DOWN -------------- ----------

10 10/100TX YES DOWN -------------- ---------­11 10/100TX YES DOWN -------------- ---------­12 10/100TX YES DOWN -------------- ----------

InUse Duplex InUse

<Ok> <Up unit> <Down unit> <Prev page> <Next page>

Use <TAB> or arrow keys to move. <Enter> to select.

Parameter Description

Type Shows port type as:

10/100TX: 10BASE-T / 100BASE-TX
100FX: 100BASE-FX
1000SX: 1000BASE-SX
1000LX: 1000BASE-LX
1000T: 1000BASE-T

GBIC: 1000BASE-X Transceiver
Operational Shows if the port is functioning or not.
Link Indicates if the port has a valid connection to an external device.
FlowControl InUse Shows the flow control type in use. Flow control can eliminate frame loss

by “blocking” traffic from end stations connected directly to the switch. Back

pressure is used for half duplex and IEEE 802.3x for full duplex. Note that

flow control should not be used if a port is connected to a hub.
Speed and Duplex InUse Displays the current port speed and duplex mode used. (Note that

Auto-negotiation is not available for 100BASE-FX ports.)

2-26

Configuring the Switch

Using the Spanning Tree Algorithm

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, an STA-compliant switch, bridge or router)
in your network to ensure that only one route exists between any two

stations on the
network. For a more detailed description of how to use this algorithm, refer to
“Spanning Tree Algorithm” on page 4-1.

Alcatel OmniStack 6124

< Spanning Tree Configuration Menu >

Spanning Tree Bridge Configuration

Spanning Tree Port Configuration

Use <TAB> or arrow keys to move. <Enter> to select.

<Ok>

Configuring Bridge STA

The following figure and table describe Bridge STA configuration.

Alcatel OmniStack 6124

< Spanning Tree Bridge Configuration >

Spanning Tree Protocol : On

Bridge Priority : 32768

Hello Time (in seconds) : 2

Max Age (in seconds) : 20

Forward Delay (in seconds) : 15

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, <Space> to scroll options.

2-27

Using the System Configuration Program

Parameter Default Description

Spanning Tree
Protocol

Priority 32,768 Device priority is used in selecting the root device, root port, and

Hello Time 2 Time interval (in seconds) at which the root device transmits a

Max (Message)
Age

Forward Delay 15 The maximum time (in seconds) the root device will wait before

Enabled Enable this parameter to participate in a STA compliant network.

designated port. The device with the highest priority becomes the STA
root device. However, if all devices have the same priority, the device
with the lowest MAC address will then become the root device.

Enter a value from 0 - 65535.
Remember that the lower the numeric value, the higher the priority.

configuration message.
The minimum value is1.
The maximum value is the lower of 10 or [(Max. Message Age / 2) -1].

20 The maximum time (in seconds) a device can wait without receiving a

configuration message before attempting to reconfigure. All device ports
(except for designated ports) should receive configuration messages at
regular intervals. Any port that ages out STA information (provided in
the last configuration message) becomes the designated port for the
attached LAN. If it is a root port, a new root port is selected from among
the device ports attached to the network.

The minimum value is the higher of 6 or [2 x (Hello Time + 1)].
The maximum value is the lower of 40 or [2 x (Forward Delay - 1)].

changing states (i.e., listening to learning to forwarding). This delay is
required because every device must receive information about topology
changes before it starts to forward frames. In addition, each port needs
time to listen for conflicting information that would make it return to a
blocking state; otherwise, temporary data loops might result.

The maximum value is 30.
The minimum value is the higher of 4 or [(Max. Message Age / 2) + 1].

2-28

Configuring the Switch

Configuring STA for Ports

The following figure and table describe port STA configuration.

Alcatel OmniStack 6124

< Spanning Tree Port Configuration > Unit 1 Port 1 - 12

Fast forwarding on all ports : [Enable] [Disable]

Port Type Priority Cost FastForwarding

------------------------------------------------------­1 10/100TX 128 19 ENABLED
2 10/100TX 128 19 ENABLED
3 10/100TX 128 19 ENABLED
4 10/100TX 128 19 ENABLED
5 10/100TX 128 19 ENABLED
6 10/100TX 128 19 ENABLED
7 10/100TX 128 19 ENABLED
8 10/100TX 128 19 ENABLED
9 10/100TX 128 19 ENABLED

10 10/100TX 128 19 ENABLED
11 10/100TX 128 19 ENABLED
12 10/100TX 128 19 ENABLED

<Apply> <Ok> <Cancel> <Up unit> <Down unit> <Prev page> <Next page>

Use <TAB> or arrow keys to move. <Enter> to select

Parameter Default Description

Fast forwarding
on all ports

Enabled See “FastForwarding” in this table.

Type Shows port type as:

10/100TX: 10BASE-T / 100BASE-TX
100FX: 100BASE-FX
1000SX: 1000BASE-SX
1000LX: 1000BASE-LX
1000T: 1000BASE-T
GBIC: 100 0BA SE -X Tra nsc eive r

Priority 128 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.
Where more than one port is assigned the highest priority, the port with
lowest numeric identifier will be enabled. The range is 0 - 255.

(Path) Cost 100/19/4 This parameter is used by the STA algorithm to determine the best path

between devices. Therefore, lower values should be assigned to ports
attached to faster media, and higher values assigned to ports with slower
media. (Path cost takes precedence over port priority.)

The default and recommended range is:
Ethernet: 100 (50~600)
Fast Ethernet: 19 (10~60)
Gigabit Ethernet: 4 (3~10)
The full range is 0 - 65535.

Fast Forwarding* Enabled This parameter is used to enable/disable the Fast Spanning Tree mode

for the selected port. In this mode, ports skip the Blocked, Listening and
Learning states and proceed straight to Forwarding.

*Fast Forwarding enables end-node workstations and servers to overcome time-out problems when the
Spanning Tree Algorithm is implemented in a network. Therefore, Fast Forwarding should only be enabled for
ports connected to an end-node device.

2-29

Using the System Configuration Program

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 6124

< Spanning Tree Information Menu >

Spanning Tree Bridge State

Spanning Tree Port State

Use <TAB> or arrow keys to move. <Enter> to select.

<Ok>

2-30

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 6124

< Spanning Tree Bridge State >

Bridge Priority : 32768
Hello Time (in seconds) : 3
Max Age (in seconds) : 20
Forward Delay (in seconds) : 15
Hold Time (in seconds) : 1
Designated Root : 0.000011114321
Root Cost : 19
Root Port : 24
Configuration Changes : 1
Topology Up Time : 166619 (0 day 0 hr 27 min 46 sec)

<Ok>

<Enter> to select.

Parameter Description

Bridge Priority 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.
However, if all devices have the same priority, the device with the lowest
MAC address will then become the root device.

Hello Time The time interval (in seconds) at which the root device transmits a

configuration message.

Max Age The maximum time (in seconds) a device can wait without receiving a

configuration message before attempting to reconfigure.

Forward Delay The maximum time (in seconds) the root device will wait before changing

states (i.e., listening to learning to forwarding).

Hold Time The minimum interval between the transmission of consecutive

Configuration BPDUs.

Designated Root The priority and MAC address of the device in the Spanning Tree that this

switch has accepted as the root device.
Root Cost The path cost from the root port on this switch to the root device.
Root Port The number of the port on this switch that is closest to the root. This switch

communicates with the root device through this port. If there is no root port,

then this switch has been accepted as the root device of the Spanning Tree

network.
Configuration Changes The number of times the Spanning Tree has been reconfigured.
Topology Up Time The time since the Spanning Tree was last reconfigured.

2-31

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 6124

< Spanning Tree Port State > Unit 1 Port 1 - 12

Port Type Status Designated Designated Designated

----------------------------------------------------------------------

1 10/100TX NO LINK 19 32768.0010B54C1EB6 128.1
2 10/100TX NO LINK 19 32768.0010B54C1EB6 128.2
3 10/100TX NO LINK 19 32768.0010B54C1EB6 128.3
4 10/100TX NO LINK 19 32768.0010B54C1EB6 128.4
5 10/100TX NO LINK 19 32768.0010B54C1EB6 128.5
6 10/100TX NO LINK 19 32768.0010B54C1EB6 128.6
7 10/100TX NO LINK 19 32768.0010B54C1EB6 128.7
8 10/100TX NO LINK 19 32768.0010B54C1EB6 128.8

9 10/100TX NO LINK 19 32768.0010B54C1EB6 128.9
10 10/100TX NO LINK 19 32768.0010B54C1EB6 128.10
11 10/100TX NO LINK 19 32768.0010B54C1EB6 128.11
12 10/100TX NO LINK 19 32768.0010B54C1EB6 128.12

Cost Bridge Port

<Ok> <Up unit> <Down unit> <Prev page> <Next page>

Use <TAB> or arrow keys to move. <Enter> to select.

Parameter Description

Type Shows port type as:

10/100TX: 10BASE-T / 100BASE-TX
100FX: 100BASE-FX
1000SX: 1000BASE-SX
1000LX: 1000BASE-LX
1000T: 1000BASE-T
GBIC: 1000BASE-X Transceiver

Status

Displays current state of this port within the Span ning Tree:
No Link No link has been established on this port.
Disabled Port has been disabled by the user or has failed diagnostics.
Blocking Port receives STA configuration messages, but does not forward

packets.

Listening Port will leave blocking state due to topology change, starts

transmitting configuration messages, but does not yet forward
packets.

Learning Port has transmitted configuration messages for an interval set by the

Forward Delay parameter without receiving contradictory information.
Port address table is cleared, and the port begins learning addresses.

Forwarding The port forwards packets, and continues learning addresses.
The rules defining port status are:

• A port on a network segment with no other STA-compliant bridging device is
always forwarding.

• If two ports of a switch are connected to the same segment and there is no other
STA device attached to this segment, the port with the smaller ID forwards packets
and the other is blocked.

• All ports are blocked when the switch is booted, then some of them change state
to listening, to learning, and then to forwarding.

2-32

Configuring the Switch

Parameter Description

Designated Cost The cost for a packet to travel from this port to the root in the current Spanning Tree

configuration. The slower the media, the higher the cost.

Designated Bridge
(ID)

Designated
Port (ID)

The priority and MAC address of the device through which this port must communicate
to reach the root of the Spanning Tree.

The priority and number of the port on the designated bridging device through which this
switch must communicate with the root of the Spanning Tree.

Using a Mirror Port 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. When mirroring
port traffic, note that the target port must be included in the same VLAN as the
source port. (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 6124

< Mirror Port Configuration >

Mirror Source Port : Unit 1

Mirror Target Port : Unit 1

Status : DISABLED

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, other keys to make changes.

Port 1

Port 2

Parameter Description

Mirror Source Port The port whose traffic will be monitored.
Mirror Target Port The port that will duplicate or “mirror” all the traffic happening on the

monitored port.

Status Enables or disables the mirror function.

2-33

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 five trunk connections (combining 2~4
ports into a fat pipe) between any two standalone OmniStack

®

6124 switches, or up
to 12 for an entire stack. However, before making any physical connections between
devices, use the Trunk Configuration menu to specify the trunk on the devices at
both ends. When using a port trunk, note that:

• The ports used in a trunk must all be of the same media type (RJ-45, 100 Mbps

fiber, 1000BASE-SX or 1000BASE-LX). The ports that can be assigned to the
same trunk have certain other restrictions as described on page 2-36.

• Ports can only be assigned to one trunk.

• The ports at both ends of a connection must be configured as trunk ports.

• The ports at both ends of a trunk must be configured in an identical manner,

including speed, duplex mode, and VLAN assignments.

• None of the ports in a trunk can be configured as a mirror source port or mirror

target port.

• All the ports in a trunk have to be treated as a whole when moved from/to, added

or deleted from a VLAN.

• The Spanning Tree Algorithm will treat all the ports in a trunk as a whole.

• Enable the trunk prior to connecting any cable between the switches to avoid

creating a loop.

• Disconnect all trunk port cables or disable the trunk ports before removing a port

trunk to avoid creating a loop.

2-34

Configuring the Switch

You can use the Port Trunking Configuration screen to set up port trunks as shown
below:

Alcatel OmniStack 6124

< Port Trunking Configuration >

Trunk ID Status Member List

--------- -------- ----------- ----------- ----------- ----------­1 ENABLED Unit : 1 Unit : 1 Unit : 1 Unit : 1

2 DISABLED Unit : 1 Unit : 1 Unit : 1 Unit : 1

-- -------- Unit : - Unit : - Unit : - Unit : -

TrunkID:1 TrunkID:1 MemberUnit:1

[Show] [More]
[Enable] [Disable] [Add] [Delete]

Use <TAB> or arrow keys to move, other keys to make changes.

1234

Port:13 Port:14 Port:15 Port:16

Port:11 Port:12 Port:23 Port:24

Port:-- Port:-- Port:-- Port:--

Member Port : 1

<Ok>

Parameter Description

Trunk ID Configure up to five trunks per switch.
Status Shows if the selected trunk is enabled or disabled.
Unit Specifies a switch unit in the stack (1~6).
Port Select from 2 ~ 4 ports per trunk.
[Show] Displays trunk settings, where the first trunk listed is specified by “Trunk ID.”
[More] Scrolls through the list of configured trunks.
[Enable] [Disable] Enables/disables the selected trunk.
[Add] [Delete] Adds/deletes the port specified by

Trunk ID / Member Unit / Member Port.

2-35

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,
13, 14, 15, 16

5, 6, 7, 8,
17, 18, 19, 20

9, 10, 11, 12,
21, 22, 23, 24

The 100BASE-FX fiber ports used for one side of a trunk must all be on the same
module. However, the 1000BASE-SX, 1000BASE-LX, 1000BASE-LH and
1000BASE-T ports used for one side of a trunk may be on any switch in the stack, or
both on the same switch if used standalone.

Media Module

100BASE-FX Any ports on a single module.
1000BASE-SX

1000BASE-LX
1000BASE-T

Up to four Gigabit ports from any switch in the stack, or both Gigabit ports on two
modules installed in a standalone switch.

For example, when using Gigabit ports to form a trunk within a stack, the Gigabit
ports will all be at Port 25. In this case, you could specify a trunk group consisting of:
(Unit1-Port25, Unit2-Port25, Unit3-Port25, Unit4-Port25),
or two trunks consisting of:
(Unit1-Port25, Unit2-Port25) and (Unit3-Port25, Unit4-Port25).

2-36

Configuring the Switch

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 which want to receive the multicast register with their local multicast switch/
router. Although this approach reduces the network overhead required by a
multicast server, the broadcast traffic must be carefully pruned at every multicast
switch/router it passes through to ensure that traffic is only passed on the hosts
which subscribed to this service.

This switch uses IGMP (Internet Group Management Protocol) to query for any
attached hosts who want to receive a specific multicast service. The switch looks up
the IP Multicast Group used for this service and adds any port which received a
similar request to that group. It then propagates the service request on to any
neighboring multicast switch/router to ensure that it will continue to receive the
multicast service. (For more information, see “IGMP Protocol” on page 4-5.)

Configuring IGMP

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 6124

< IGMP Configuration >

IGMP Status : DISABLED

IGMP Query Count : 2

IGMP Report Delay (Seconds) : 10

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, <Space> to scroll options.

Parameter Description

IGMP Status If enabled, the switch will monitor network traffic to determine which hosts want

IGMP Query Count The maximum number of queries issued for which there has been no response

IGMP Report Delay The time (in seconds) between receiving an IGMP Report for an IP multicast

Note: The default values are indicated in the sample screen.

to receive multicast traffic. This is also referred to as IGMP Snooping.

before the switch takes action to solicit reports. (Range 2 - 10.)

address on a port before the switch sends an IGMP Query out that port and
removes the entry from its list. (Range 5 - 30.)

2-37

Using the System Configuration Program

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 6124

< Broadcast Storm Control Configuration > Unit 1 Port 1 - 12

Broadcast control on all ports : [Enable] [Disable]

Port Threshold Broadcast Control

------------------------------------------------------­1 500 ENABLED
2 500 ENABLED
3 500 ENABLED
4 500 ENABLED
5 500 ENABLED
6 500 ENABLED
7 500 ENABLED
8 500 ENABLED
9 500 ENABLED

10 500 ENABLED
11 500 ENABLED
12 500 ENABLED

<Apply> <Ok> <Cancel> <Up Unit> <Down Unit> <Prev Page> <Next Page>

Use <TAB> or arrow keys to move. <Enter> to select

Parameter Description

Broadcast control on all ports Allows you to enable/disable broadcast storm control for all ports on the switch.

Select [Enable] and press <Enter> to enable broadcast control for all ports.
Select [Disable] and press <Enter> to disable broadcast control for all ports.

Threshold The packet-per-second threshold for broadcast packets on the port.

(Default is 500 pps.)

Broadcast Control Enables/disables broadcast control for the port. When enabled, the switch will

employ a broadcast-control mechanism if the packet-per-second threshold is
exceeded. This mechanism limits the amount of broadcasts passed by the port
to half of the received packet-per-second count. The control mechanism
remains in effect until the number of received broadcasts falls back below the
packet-per-second threshold. (Default is Enabled.)

2-38

Configuring the Switch

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 6124

Port Security Configuration

MAC Address MAC Address

--------------------------------------------------

Secure address count : 0

Unit : 1 Port : 1 MAC : 00-00-00-00-00-00
[Show] [More] [Add] [Delete]
Mode:DISABLE [Apply] [Clear]

Use <TAB> or arrow keys to move. <Enter> to select

<OK>

Parameter Description

MAC Address A list of the authorized MAC addresses that can access the network through

the specified port.
Secure Address Count The number of authorized MAC addresses for the specified port.
Unit The stack unit ID.
Port The port number on the unit.
[Show] Displays authorized MAC addresses for the specified port.
[More] Displays more MAC addresses for the port.
Mode Port security can be set to three states; Static, Disable, or Learning. When set

to Static, the switch will drop packets from the port if the source MAC address

does not match one of the addresses in the MAC Address list. If set to

Learning, the switch will add the source MAC address of all packets received

on the port to the authorized MAC Address list.
[Apply] Applies a change of Mode to the port.
MAC A specific MAC address to be added or deleted from the list.
[Add] Adds a new MAC addre ss to the curr ent list.
[Delete] Removes a MAC address from the current list.
[Clear] Clears all the MAC addresses for the current port.

2-39

Using the System Configuration Program

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 6124

< Extended Bridge Configuration >

Bridge Capability : (Read Only)

Extended Multicast Filtering Services : NO
Traffic Classes : YES
Static Entry Individual Port : YES
VLAN Learning : IVL
Configurable PVID Tagging : YES
Local VLAN Capable : NO

Bridge Settings :

Traffic Classes : TRUE
GMRP : DISABLED
GVRP : DISABLED

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, <Space> to scroll options.

Parameter Description

Bridge Capability

Extended Multicast Filtering
Services

Traffic Classes This switch provides mapping of user priorities to multiple traffic classes.

This switch does not support filtering of individual multicast addresses based
on GMRP (GARP Multicast Registration Protocol).

(Refer to “802.1P Port Traffic Class Information” on page 2-43.)

Static Entry Individual Port This switch allows static filtering for unicast and multicast addresses. (Refer

to Network Monitor Menu / Static Unicast Address Table Configuration and
Static Multicast Address Table Configuration.)

VLAN Learning This switch uses Independent VLAN Learning (IVL), whereby each port

Configurable
PVID Tagging

maintains its own VLAN filtering database.
This switch allows you to override the default PVID (Port VLAN ID) assigned

to untagged incoming frames und er “80 2.1Q VLAN Port Con figu rat ion” on
page 2-48.

Local VLAN Capable This switch does not support multiple local bridges (that is, multiple Spanning

Trees).

Bridge Settings

Traffic Class* Multiple traffic classes are supported by this switch as indicated under Bridge

Capabilities. However, you can disable this function by setting this parameter
to False.

GMRP* GARP Multicast Registration Protocol (GMRP) allows network devices to

register endstations with multicast groups.
IGMP Snooping is currently used by this switch to provide multicast filtering.

GVRP* GARP VLAN Registration Protocol (GVRP) defines a way for switches to

exchange VLAN information in order to register necessary VLAN members
on ports across the network. This function should be enabled to permit
VLANs groups which extend beyond the local switch.

* Not enabled in this firmware release.

2-40

Configuring the Switch

Configuring Traffic Classes

IEEE 802.1P defines up to 8 separate traffic classes. This switch supports Quality of
Service (QoS) by using two priority queues, with Weighted Fair Queuing for each
port. 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 6124

< 802.1P Configuration >

802.1P Port Priority Configuration

802.1P Port Traffic Class Information

Use <TAB> or arrow keys to move. <Enter> to select.

<Ok>

2-41

Using the System Configuration Program

Port Priority Configuration

Inbound frames that do not have any VLAN tags are tagged with the input port’s
default VLAN ID (PVID) and the Default Ingress User Priority as shown in the
following menu, and then sorted into the appropriate priority queue at the output
port. (Note that if the output port is an untagged member of the associated VLAN,
these frames are stripped of all VLAN tags prior to transmission.)

The default priority for all ingress ports is zero. Therefore, any inbound frames that
do not have priority tags will be placed in the low priority queue of the output port.
You can use the following
below.

< 802.1P Port Priority Configuration > Unit 1 Port 1 - 12

menu to adjust default ingress priority for any port as shown

Alcatel OmniStack 6124

Port Default Ingress Number of Egress

----------------------------------------------­10 2
20 2
30 2
40 2
50 2
60 2
70 2
80 2
90 2

10 0 2
11 0 2
12 0 2

<Apply> <Ok> <Cancel> <Up unit> <Down unit> <Prev page> <Next page>

Use <TAB> or arrow keys to move, other keys to make changes.

User Priority Traffic Class

Parameter Description

Port Numeric identifier for switch port.
Default Ingress User Priority Default ingress priority can be set to any value from 0~7, where 0~3 specifies

the low priority queue and 4~7 specifies the high priority queue.

Number of Egress Traffic
Classes

Indicates that this switch supports two priority output queues.

2-42

Configuring the Switch

802.1P Port Traffic Class Information

This switch provides two priority levels with Weighted Fair Queuing for port egress.
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 6124

< 802.1P Port Traffic Class Information > Unit 1 Port 1 - 12

Port User Priority

01234567

----------------------------------------------------­100001111
200001111
300001111
400001111
500001111
600001111
700001111
800001111
900001111

1000001111
1100001111
1200001111

<Ok> <Up unit> <Down unit> <Prev page> <Next page>

Use <TAB> or arrow keys to move. <Enter> to select.

Parameter Description

Port Numeric identifier for switch port.
User Priority Shows that user priorities 0~3 specify the low priority queue and 4~7 specify

the high priority queue.

2-43

Using the System Configuration Program

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. This can lead to broadcast storms in large networks that handle traffic
such as IPX or NetBeui. By using IEEE 802.1Q compliant VLANs, you can organize
any group of network nodes into separate broadcast domains, confining broadcast
traffic to the originating group. This also provides a more secure and cleaner
network environment. For more information on how to use VLANs, see “Virtual
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 6124

< 802.1Q VLAN Base Information >

VLAN Version Number : 1

MAX VLAN ID : 2048

MAX Supported VLANs : 256

Current Number of 802.1Q VLANs Configured : 1

<Ok>

<Enter> to select.

Parameter Description

VLAN Version Number The VLAN version used by this switch as specified in the IEEE 802.1Q

MAX VLAN ID Maximum VLAN ID recognized by this switch.
MAX Supported VLANs Maximum number of VLANs that can be configured on this switch.
Current Number of VLANs

Configured

standard.

The number of VLANs currently conf igur ed on this switch .

2-44

Configuring the Switch

802.1Q VLAN Current Table Information

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. The current configuration is shown in the following screen.

Alcatel OmniStack 6124

< 802.1Q VLAN Current Table Information >

Deleted VLAN Entry Counts : 0

VID Creation Time Status

---------------------------------------------------------------­1 0 (0 day 0 hr 0 min 0 sec) Permanent

Unit Current Egress Ports Current Untagged Ports

1. 111111111111 111111111111 11-- 111111111111 111111111111 11--

2. ------------ ------------ ---- ------------ ------------ ----

3. ------------ ------------ ---- ------------ ------------ ----

4. ------------ ------------ ---- ------------ ------------ ----

5. ------------ ------------ ---- ------------ ------------ ----

6. ------------ ------------ ---- ------------ ------------ ----

Sorted by VID : 1

[Show] [More]

Use <TAB> or arrow keys to move. <Enter> to select

Port 1 Port 13 Port 25

<Ok>

Parameter Description

Deleted VLAN Entry Counts The number of times a VLAN entry has been deleted from this table.
VID The ID for the VLAN currently displayed.
Creation Time The value of sysUpTime (System Up Time) when this VLAN was created.
Status Shows how this VLAN was added to the switch.

Dynamic GVRP: Automatically learned via GVRP.

Permanent: Added as a static entry.
Unit Stack unit.
Current Egress Ports Shows the ports which have been added to the displayed VLAN group, where

“1” indicates that a port is a member and “0” that it is not.
Current Untagged Ports If a port has been added to the displayed VLAN (see Current Egress Ports),

its entry in this field will be “1” if the port is untagged or “0” if tagged.
Sorted by VID The VLAN ID number from which the display will start.
[Show] Displays the members for the VLAN indicated by the “Sorted by VID” field.
[More] Displays any subsequent VLANs if configured.

2-45

Using the System Configuration Program

802.1Q VLAN Static Table Configuration

Use this screen to create a new VLAN or modify the settings for an existing VLAN.
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 6124

< 802.1Q VLAN Static Table Configuration >

VID VLAN Name Status

-----------------------------­1 Active

Unit Egress Ports Forbidden Egress Ports

1. 111111111111 111111111111 11-- 000000000000 000000000000 00--

2. ------------ ------------ ---- ------------ ------------ ----

3. ------------ ------------ ---- ------------ ------------ ----

4. ------------ ------------ ---- ------------ ------------ ----

5. ------------ ------------ ---- ------------ ------------ ----

6. ------------ ------------ ---- ------------ ------------ ----

Unit Untagged Ports

1. 111111111111 111111111111 11-- VID : 1

2. ------------ ------------ ---- [Show]

3. ------------ ------------ ---- [More]

4. ------------ ------------ ---- [New]

5. ------------ ------------ ----

6. ------------ ------------ ----

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, other keys to make changes.

Parameter Description

VID The ID for the VLAN currently displayed.

Range: 1-2048

VLAN Name A user-specified symbolic name for this VLAN.

String length: Up to 8 alphanumeric characters
Status Sets the current editing status for this VLAN as: Not in Service, Destroy or Active.
Unit Stack unit.
Egress Ports Set the entry for any port in this field to “1” to add it to the displayed VLAN, or “0”

to remove it from the VLAN.
Forbidden Egress Ports Prevents a port from being automatically added to this VLAN via GVRP. Note that

GVRP is not supported in the current firmware release.
Untagged Ports You can add a port to the displayed VLAN as an untagged port by setting this field

to “1” or as a tagged port by setting it to “0.” This field is only enabled if the

corresponding port has been add ed to the disp lay ed VLA N as an “Egr ess Port.”
[Show] Use <TAB> or the arrow keys to select this field, then press <Enter> to display

settings for the VLAN specified in the VID field immediately above.
[More] Use <TAB> or the arrow keys to select this field, then press <Enter> to display the

next consecutively numbered VLAN.
[New] Use <TAB> or the arrow keys to select this field, then press <Enter> to set up the

screen for configuring a new VLAN.

2-46

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 6124

< 802.1Q VLAN Static Table Configuration >

VID VLAN Name Status

-----------------------------­2 Active

Unit Egress Ports Forbidden Egress Ports

1. 111111000000 000000000000 00-- 000000010000 000000000000 00--

2. ------------ ------------ ---- ------------ ------------ ----

3. ------------ ------------ ---- ------------ ------------ ----

4. ------------ ------------ ---- ------------ ------------ ----

5. ------------ ------------ ---- ------------ ------------ ----

6. ------------ ------------ ---- ------------ ------------ ----

Unit Untagged Ports

1. 111111000000 000000000000 00-- VID : 2

2. ------------ ------------ ---- [Show]

3. ------------ ------------ ---- [More]

4. ------------ ------------ ---- [New]

5. ------------ ------------ ----

6. ------------ ------------ ----

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, other keys to make changes.

Notes: 1. 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.

2. If a removed port is no longer assigned to any other group as an
untagged port, it will automatically be assigned to VLAN group 1 as
untagged.

2-47

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 6124

< 802.1Q VLAN Port Configuration > Unit 1 Port 1 - 12

Port PVID Acceptable Ingress GVRP GVRP Failed GVRP Last

---------------------------------------------------------------------------­1 1 All FALSE DISABLED 0 00-00-00-00-00-00
2 1 All FALSE DISABLED 0 00-00-00-00-00-00
3 1 All FALSE DISABLED 0 00-00-00-00-00-00
4 1 All FALSE DISABLED 0 00-00-00-00-00-00
5 1 All FALSE DISABLED 0 00-00-00-00-00-00
6 1 All FALSE DISABLED 0 00-00-00-00-00-00
7 1 All FALSE DISABLED 0 00-00-00-00-00-00
8 1 All FALSE DISABLED 0 00-00-00-00-00-00
9 1 All FALSE DISABLED 0 00-00-00-00-00-00

10 1 All FALSE DISABLED 0 00-00-00-00-00-00
11 1 All FALSE DISABLED 0 00-00-00-00-00-00
12 1 All FALSE DISABLED 0 00-00-00-00-00-00

<Apply> <Ok> <Cancel> <Up unit> <Down unit> <Prev page> <Next page>

Frame Type Filtering Status Registrations PDU Origin

Use <TAB> or arrow keys to move, other keys to make changes.

Parameter Description

PVID The VLAN ID assigned to untagged frames received on this port.

1

Acceptable Frame Type

This switch accepts “All” frame types, including VLAN tagged or VLAN
untagged frames. Note that all VLAN untagged frames received on this port
are assigned to the PVID for this port.

Ingress Filtering

GVRP Status

1

2

If set to “True,” incoming frames for VLANs which do not include this ingress
port in their member set will be discarded at the ingress port.

Enables or disables GVRP for this port. When disabled, any GVRP packets
received on this port will be discarded and no GVRP registrations will be
propagated from other ports.

Note that GVRP must be enabled for the switch before this setting can take
effect. (See Device Control Menu / Extended Bridge Configuration.)

2

GVRP Failed Registrations
GVRP Last PDU Origin

The total number of failed GVRP registrations, for any reason, on this port.

2

The Source MAC Address of the last GVRP message received on this port.

1: These controls do not affect VLAN independent BPDU frames, such as GVRP or STP. However, they do

affect VLAN dependent BPDU frames, such as GMRP.

2: Not available for the current firmware rele ase .

2-48

Monitoring the Switch

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 6124

< Network Monitor Menu >

Port Statistics
RMON Statistics
Unicast Address Table
Multicast Address Registration Table
IP Multicast Registration Table
Static Unicast Address Table Configuration
Static Multicast Address Table Configuration

Use <TAB> or arrow keys to move. <Enter> to select.

<Ok>

Menu Description

Port Statistics Displays statistics on network traffic passing through the selected port.
RMON Statistics Displays detailed statistical information for the selected port such as packet

type and frame size counters.

Unicast Address Table Provides full listing of all unicast addresses stored in the switch, as well as

sort, search and clear functions.

Multicast Address Registra tion

Displays the ports that belong to each GMRP Multicast group.

Table*
IP Multicast

Registration Table
Static Unicast Address Table

Displays the ports that belong to each IP Multicast group.

Allows you to display or configure static unicast addresses.

Configuration
Static Multicast Address Table

Allows you to display or configure static GMRP multicast addresses.

Configuration*
* Not implemented in this firmware release.

2-49

Using the System Configuration Program

Displaying Port Statistics

Port Statistics display key statistics from the Ethernet-like MIB for each port. Error
statistics on the traffic passing through each port are displayed. This information can
be used to identify potential problems with the switch (such as a faulty port or
unusually heavy loading). 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 6124

< Port Statistics > Unit 1 Port 1

Ether Like Counter :

FCS Errors : 0 Late Collisions : 0
Single Collision Frames : 0 Excessive Collisions : 0
Multiple Collision Frames: 0 Internal Mac Transmit Errors: 0
SQE Test Errors : 0 Carrier Sense Errors : 0
Deferred Transmissions : 0 Frame Too Longs : 0

[Refresh Statistics] [Reset Counters]

Internal Mac Receive Errors : 0

<Ok> <Up unit> <Down unit> <Prev port> <Next port>

Use <TAB> or arrow keys to move. <Enter> to select

Menu Description

FCS Errors The number of frames received that are an integral number of octets in length

but do not pass the FCS check.

Single Collision Frames* The number of successfully transmitted frames for which transmission is

inhibited by exactly one collision.

Multiple Collision Frames* A count of successfully transmitted frames for which transmission is inhibited

by more than one collision.

SQE Test Errors* A count of times that the SQE TEST ERROR message is generated by the

PLS sublayer.

Deferred Transmissions* A count of frames for which the first transmission attempt on a particular

interface is delayed because the medium was busy.

Late Collisions The number of times that a collision is detected later than 512 bit-times into

the transmission of a packet.

Excessive Collisions* The number of frames for which transmission failed due to excessive

collisions.

Internal Mac Transmit Errors* The number of frames for which transmission failed due to an internal MAC

sublayer transmit error.

Carrier Sense Errors* The number of times that the carrier sense condition was lost or never

asserted when attempting to transmit a frame.

Frames Too Long The number of frames received that exceed the maximum permitted frame

size.

2-50

Monitoring the Switch

Menu Description

Internal Mac Receive Errors The number of frames for which reception failed due to an internal MAC

sublayer receive error.

* The reported values will always be zero because these statistics are not supported by the internal chip set.
Note: Statistics are automatically refreshed every 5 seconds (see page 2-14).

Displaying RMON Statistics

Use the RMON Statistics screen to display key statistics for each port from RMON
group 1. (RMON groups 2, 3 and 9 can only be accessed using SNMP management
software.) The following screen displays the overall statistics on traffic passing
through each port. 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 6124

< RMON Statistics > Unit 1 Port 1

Drop Events : 0 Jabbers : 0
Received Bytes : 0 Collisions : 0
Received Frames : 0 64 Byte Frames : 0
Broadcast Frames : 0 65-127 Byte Frames : 0
Multicast Frames : 0 128-255 Byte Frames : 0
CRC/Alignment Errors : 0 256-511 Byte Frames : 0
Undersize Frames : 0 512-1023 Byte Frames : 0
Oversize Frames : 0 1024-1518 Byte Frames : 0
Fragments : 0

[Refresh Statistics] [Reset Counters]

<Ok> <Up unit> <Down unit> <Prev port> <Next port>

Use <TAB> or arrow keys to move. <Enter> to select

Menu Description

Drop Events The total number of events in which packets were dropped due to lack of

resources.

Received Bytes Total number of bytes of data received on the network. This statistic can be

used as a reasonable indication of Ethernet utilization.
Received Frames The total number of frames (bad, broadcast and multicast) received.
Broadcast Frames The total number of good frames received that were directed to the broadcast

address. Note that this does not include multicast packets.
Multicast Frames The total number of good frames received that were directed to this multicast

address.
CRC/Alignment Errors The number of CRC/alignment errors (FCS or alignment errors).
Undersize Frames The total number of frames received that were less than 64 octets long

(excluding framing bits, but including FCS octets) and were otherwise well

formed.

2-51

Using the System Configuration Program

Menu Description

Oversize Frames The total number of frames received that were longer than 1518 octets

Fragments The total number of frames received that were less than 64 octets in length

Jabbers The total number of frames received that were longer than 1518 octets

Collisions The best estimate of the total number of collisions on this Ethernet segment.
64 Byte Frames The total number of frames (including bad packets) received and transmitted

65-127 Byte Frames The total number of frames (including bad packets) received and transmitted

128-255 Byte Frames The total number of packets (including bad packets) received and transmitted

1024-1518 Byte Frames The total number of packets (including bad packets) received and transmitted

Note: Statistics are automatically refreshed every 5 seconds (see page 2-14).

(excluding framing bits, but including FCS octets) and were otherwise well
formed.

(excluding framing bits, but including FCS octets) and had either an FCS or
alignment error.

(excluding framing bits, but including FCS octets), and had either an FCS or
alignment error.

that were 64 octets in length (excluding framing bits but including FCS
octets).

that were between 65 and 127 octets in length inclusive (excluding framing
bits but including FCS octets).

that were between 128 and 255 octets in length inclusive (excluding framing
bits but including FCS octets).

that were between 1024 and 1518 octets in length inclusive (excluding
framing bits but including FCS octets).

2-52

Monitoring the Switch

Displaying the Unicast Address Table

The Address Table contains the MAC addresses and VLAN identifier associated
with each port (that is, the source port associated with the address and VLAN),
sorted by MAC address or VLAN ID. You can search for a specific address, clear the
entire address table, or information associated with a specific address, or set the
aging time for deleting inactive entries. The information displayed in the Address
Table is indicated in the following figure and table.

Alcatel OmniStack 6124

< Unicast Address Table >

Aging Time : 300 Dynamic Counts : 173 Static Counts : 0

MAC VID Unit Port Status MAC VID Unit Port Status

--------------------------------------------------------------------------­00-00-11-11-43-29 1 1 24 D 00-00-E8-00-00-03 1 1 24 D
00-00-E2-12-F9-F8 1 1 24 D 00-00-E8-00-00-07 1 1 24 D
00-00-E2-16-C5-82 1 1 24 D 00-00-E8-00-00-08 1 1 24 D
00-00-E2-20-C3-D5 1 1 24 D 00-00-E8-00-00-96 1 1 24 D
00-00-E2-21-74-D0 1 1 24 D 00-00-E8-00-01-01 1 1 24 D
00-00-E2-2A-59-9A 1 1 24 D 00-00-E8-07-12-5E 1 1 24 D
00-00-E2-2E-FD-F6 1 1 24 D 00-00-E8-11-11-33 1 1 24 D
00-00-E8-00-00-02 1 1 24 D 00-00-E8-12-12-12 1 1 24 D

Sorted by : MAC + VID Cleared by : MAC + VID
VLAN ID : 1 VLAN ID : 1
MAC : 00-00-00-00-00-00 MAC : 00-00-00-00-00-00
[Show] [More] [Clear] [Clear ALL]

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, other keys to make changes.

Menu Description

Aging Time Time-out period in seconds for aging out dynamically learned forwarding information.

Range: 10 - 415 seconds; Default: 300 seconds
Dynamic Count The number of dynamically learned addresses in the table.
Static Count The number of static addresses in the table.
MAC The MAC address of a node.
VID The VLAN(s) associated with this address or port.
Unit Switch unit in the stack (1~6).
Port The port whose address table includes this MAC address.
Status Indicates address status as:

D: Dynamically learned, or

P: Fixed permanently by SNMP network management software.
Sorted/Cleared by Selects the primary key used to sort/clear the table: MAC or VID.
[Show] Displays the address table according to the settings on the left-hand side of the screen.

Use <TAB> or the arrow keys to select the “Sorted by” field, then use the <Space bar>

to select the primary sort key, MAC or VID. In the VLAN ID field, set the VLAN at which

you want the table listing to start. In the MAC field, set the MAC address at which you

want the table listing to start. Select the [Show] field and press <Enter> to display the

table entries.
[More] Use <TAB> or the arrow keys to select this field, then press <Enter> to scroll through the

next page of address table entries for the current settings on the left-hand side of the

screen.

2-53

Using the System Configuration Program

Menu Description

[Clear] Clears address table entries according to the settings on the right-hand side of the

screen. Use <TAB> or the arrow keys to select the “Cleared by” field, then use the
<Space bar> to select the primary key, MAC or VID. In the VLAN ID field, set the ID to
clear the table of all entries in a specific VLAN. In the MAC field, set a specific MAC
address to clear from the table. Select the [Clear] field and press <Enter> to remove
entries from the table.

[Clear ALL] Use <TAB> or the arrow keys to select this field and press <Enter> to remove all

dynamically learned MAC addresses from the 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 6124

< IP Multicast Registration Table >

VID Multicast IP Unit Multicast Group Port Lists Learned by

-------------------------------------------------------------------­1 225.1.1.1 1. 000000001100 110000000000 00 IGMP

Sorted by : VID + Multicast IP
VID : 1
Multicast IP : 225.1.1.1
[Show] [More]

Use <TAB> or arrow keys to move, <Enter> to select.

2. 000000001100 110000000000 00 IGMP

3. 000000001100 110000000000 00 IGMP

4. 000000001100 110000000000 00 IGMP

5.

6.

<OK>

Menu Description

VID VLAN ID assigned to this multicast group.
Multicast IP IP address for specific multicast services.
Unit Stack unit.
Dynamic Port Lists The switch ports registered for the indi cated multicast service.
Learned by Indicates the manner in which this address was learned: Dynamic or IGMP.
Sorted by Selects the primary sort key for displaying table entries. Note that only

VID+Multicast IP is implemented in the current firmware release.
[Show] Displays the address table sorted on VID and then Multicast IP.
[More] Scrolls through the entries in the address table.

2-54

Monitoring the Switch

Configuring Static Unicast Addresses

Use the Static Unicast Address Table Configuration screen to manually configure
host 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 6124

< Static Unicast Address Table Configuration >

VID MAC Address Unit Port Status

-----------------------------------------------------------­1 00-00-00-E8-43-12 1 1 Permanent

Sorted by : VID + MAC VID : 1 MAC : 00-00-00-00-00-00

VID : 1 Port : 1
MAC : 00-00-00-00-00-00 Status : Permanent

[Show] [More] [Set]

Use <TAB> or arrow keys to move, <Enter> to select.

<OK>

Menu Description

VID The VLAN group this port is assigned to.
MAC Address The MAC address of a host device attached to this switch.
Unit The switch unit the host device is attached to.
Port The port the host device is attached to.
Status The status for an entry can be set to:

Permanent This entry is currently in use and will remain so after

the next reset of the switch.

DeleteOnReset This entry is currently in use and will remain so until

the next reset.
Invalid Removes the corresponding entry.
DeleteOnTimeOut This entry is currently in use and will remain so until

it is aged out. (Refer to “Aging Time” on page 2-53.)
Other This entry is currently in use but the conditions

under which it will remain so differ from the

preceding values.

Sorted by Selects the primary sort key for displaying table entries. Note that only

VID+MAC is implemented in the current firmware release.

[Show] Displays the static address table sorted on VID as the primary key and MAC

address as secondary key.

[More] Scrolls through entries in the static address table.
[Set] Adds the specified entry to the static address table, such as shown in the

following example:

VID : 1 MAC : 00-00-00-e8-34-22
Unit : 1 Port: 1
Status : Permanent

2-55

Using the System Configuration Program

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 6124

< Reset System Menu >

Restart Option :

POST : YES
Reload Factory Defaults : NO
Keep IP Setting : NO
Keep User Authentication : NO

[Restart]

<Apply> <Ok> <Cancel>

Use <TAB> or arrow keys to move, <Space> to scroll options.

Menu Description

POST Runs the Power -On Self-T est
Reload Factory Defaults Reloads the factory defaults
Keep IP Setting Retains the settings defined in the IP Configuration menu.
Keep User Authentication Retains the user names and passwords defined in the Console Login

[Restart] Restarts the switch.

Configuration menu.

Logging Off the System

Use the Exit command under the Main Menu to exit the configuration program and
terminate communications with the switch for the current session.

2-56

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).

Using the Web browser management interface you can configure a switch and view
statistics to monitor network activity. The Web interface also provides access to a
range of SNMP management functions with access to the switch’s MIB and RMON
database.

Prior to accessing the switch from a Web browser, be sure you have first performed
the following tasks:

1. Configure it with a valid IP address, subnet mask, and default gateway using an
out-of-band serial connection or BOOTP protocol.

2. Set the Administrator user name and password using an out-of-band serial
connection. Access to the Web agent is controlled by the same Administrator
user name and password as the on-board configuration program.

3-1

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. The home page displays the Main Menu on the left-hand
side of the screen and System Information on the right-hand side. The Main Menu
links are used to navigate to other menus and display configuration parameters and
statistical data.

If this is your first time to access the management agent, you should define a new
Administrator password, record it and put it in a safe place. From the Main Menu,
select Security and enter a new password for the Administrator. Note that passwords
can consist of up to 11 alphanumeric characters and are not case sensitive.

Note: Based on the default configuration, a user is allowed three attempts to enter the

correct password; on the third failed attempt the current connection is terminated.
See “Console Login Configuration” on page 2-18.

3-2

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.

Web Page Configuration Buttons

Button Action

Apply Sets specified values in the management agent.
Revert Cancels specified values prior to pressing the “Apply” button.
Refresh Immediately updates values from the management agent.
Help Provides help on using the Web management interface.

Notes: 1. To ensure proper screen refresh, be sure that Internet Explorer 5.0 is

configured as follows: Under the menu “Tools / Internet Options / General /
Temporary Internet Files / Settings,” the setting for item “Check for newer
versions of stored pages” should be “Every visit to the page.”

When using Internet Explorer 5.0, you may have to manually refresh the screen

2.

after making configuration changes by pressing the browser’s refresh button.

Panel Display

The Web agent displays an image of the switch’s ports, showing port links and
activity. Clicking on the image of a port displays statistics and configuration
information for the port. Clicking on the image of the Switch ID LCD display displays
the Console Configuration screen.

3-3

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

Link Status Indicates if the port has a valid connection to an external device.
Speed Status Indicates the current port speed.
Duplex Status Indicates the port’s current duplex mode.
Flow Control Status Shows the flow control type in use. Flow control can eliminate frame loss by

VLAN The VLAN ID assigned to untagged frames received on this port. You can set the

for security reasons. See “Port Configuration” on page 3-34.

“blocking” traffic from end stations connected directly to the switch.

default Port VLAN ID (PVID) under “VLAN Port Configuration” on page 3-30 to
assign ports to the same untagged VLAN.

3-4

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.

Parameter Default Description

Baud rate 9600 bps The rate at which data is sent between devices.

Options : 2400, 4800, 9600, 19200, and auto detection.
Note that when AUTO is selected, you need to first press the Enter

key once to set the data rate and initialize the connection.

Time-Out 10 minutes If no input is received from the attached device after this interval, the

Data bits 8 bits Sets the data bits of the RS-232 port.

Stop bits 1 bit Sets the stop bits of the RS-232 port.

Parity none Sets the parity of the RS-232 port.

Auto-Refresh Time 5 seconds Sets the interval before a console session will auto refresh the

current session is automatically closed.
Range : 0 - 100 minutes; 0: disabled

Options : 7, 8

Options : 1, 2

Options : none/odd/even

console information, such as Spanning Tree Information, Port
Configuration, Port Statistics, and RMON Statistics.

Range : 5-255 seconds; 0: disabled

3-5

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 Provides basic system description, including contact information.
Switch Shows hardware/firmware version numbers, power status, and expansion

IP Includes boot state, IP address, and the maximum number of Telnet sessions

SNMP Configures communities and trap managers; and activates traps.
Security Sets password for system access.
Upgrade Downloads new version of firmware to update your system.
Configure Saves the switch configuration to a file on a TFTP server. This file can be later

Address Table Provides full listing of unicast addresses, sorted by address or VLAN.
STA Enables Spanning Tree Algorithm; also sets parameters for switch priority, hello

Bridge Extension Displays/configures extended bridge capabilities provided by this switch,

Priority Configures default port priorities and displays queue assignments.
VLAN Management Allows management access of the switch from all VLANs or only from a

VLAN Configures VLAN group members and other port-specific VLAN settings.
IGMP Configures IGMP multicast filter ing.
Port Enables any port, sets communication mode to auto-negotiation, full duplex or

Mirror Sets the source and target ports for mirroring.
Trunk Specifies ports to group into aggregate trunks.
Statistics Displays statistics on network traffic passing through the selected port.

modules in use.

allowed.

downloaded to restore the configuration.

time, maximum message age, and forward delay; as well as port priority and
path cost.

including support for traffic classes and VLAN extensions.

specified VLAN.

half duplex, and enables/disables flow control. Also configures broadcast storm
control and port security.

3-6

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

System Name*
IP Address

Object ID MIB II object identifier for switch’s network management subsystem.
Location*

*

Contact
System Up Time Length of time the current management agent has been running.

*

Maximum string length is 255, but the screen only displays 45 characters. You can use the arrow keys to
browse the whole string.

Name assigned to the switch system.
IP address of the agent you are managing. The agent supports SNMP over UDP/

IP transport protocol. In this environment, all systems on the Internet, such as
network interconnection devices and any PC accessing the agent (or running
management software) must have an IP address. Valid IP addresses consist of
four decimal numbers, of 0 to 255, separated by periods. Anything outside of this
format will not be accepted by the configuration program.

Specifies the area or location where the system resides.
Contact person for the system.

3-7

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).
Hardware Version Hardware version of the main board.
Firmware Version Main board system firmware version in ROM.
Internal Power Status Power status for the switch.
Redundant Power Status Redundant power status for the switch.

Agent Module

Parameter Description

Hardware Version Hardware version of the agent module.
POST ROM Version Agent module’s Power-On Self-Test version.
Firmware Version Agent module’s firm war e versi on.
Role Shows if this module is Master or Slave.

3-8

Switch Information

Expansion Slot

Parameter Description

Expansion Slot 1 Shows module type if inserted (100BASE-FX, 1000BASE-SX, 1000BASE-LX,

Expansion Slot 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

1000BASE-GBIC, 1000BASE-T, Stacking, or Redundant Stacking).
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
Stacking Module
Redundant Stacking Module

3-9

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

IP State USER-CONFIG Specifies whether IP functionality is enabled via manual

IP Address 192.168.10.1 IP address of the switch you are managing. The switch supports

Subnet Mask 255.255.255.0 Subnet mask of the s wit c h yo u ha v e se l ec t ed . T his m as k i d en t i fi e s

Gateway IP Address Gateway used to pass trap messages from the switch to the

MAC Address Physical address of the agent module.
Maximum Number

of Telnet Sessions

4 Sets the number of concurrent Telnet sessions allowed to access

configuration, or set by Boot Protocol (BOOTP). Options include:
USER-CONFIG - IP functionality is enabled based on the default or

user specified IP Configuration. (This is the default setting.)
BOOTP Get IP - IP is enabled but will not function until a BOOTP

reply has been received. BOOTP requests will be periodically
broadcast by the switch in an effort to learn its IP address. (BOOTP
values can include the IP address, default gateway, and subnet
mask.)

SNMP over UDP/IP transport protocol. In this environment, all
systems on the Internet, such as network interconnection devices
and any PC accessing the on-board agent (or running management
software) are assigned an IP address. Valid IP addresses consist
of four decimal numbers, of 0 to 255, separated by periods.
Anything outside of this format will not be accepted by the
configuration program.

the host address bits used for routing to specific subnets.

management station. Note that the gateway must be defined if the
management station is located in a different IP segment.

the agent.

3-10

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. A computer attached to the network, called a Network
Management Station (NMS), can be used to access this information. Access rights
to the agent module are controlled by community strings. To communicate with the
switch, the 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 figures and table.

SNMP Community

The following figure and table describe how to configure the community strings
authorized for management access. Up to 5 community names may be entered.

Parameter Description

SNMP Community
Capability

Community String A community entry authorized for management access. (The maximum string

Access Mode Management access is restricted to Read Only or Read/Write.
Add/Remove Add/remove strings from the active list.

Up to 5 community strings may be used.

length is 20 characters.)

3-11

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.
Trap Manager

IP Address
Trap Manager Community

String
Add/Remove Add/remove strings from the active list.
Enable Authentication

Traps

IP address of the trap manager.

A community authorized to receive trap messages.

Issues a trap message to specified IP trap managers whenever authentication of
an SNMP request fails.

Default: enabled

Security Configuration

Use the Security Configuration screen to restrict management access based on a
specified password. The Administrator has write access for parameters governing
the SNMP agent. You should therefore assign a password to the default
Administrator as soon as possible, and store it in a safe place. (If for some reason
your password is lost, or you cannot gain access to the system’s configuration
program, contact Alcatel Technical Support for assistance.)

Change Password

This password is for the system Administrator, with access privilege of Read/Write
for all screens. Passwords can consist of up to 11 alphanumeric characters and are
not case sensitive. (The default user name is “admin” and the default password is
“switch.”)

3-12

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
agent will not accept it. The success of the upload operation depends on the quality
of the network connection. After uploading the new software, the agent will
automatically restart itself. Parameters shown on this screen are indicated in the
following figure and table.

Parameter Description

Upload Mode Uploads to permanent flash ROM.
File Name The binary file to download. Use the Browse button to locate the file on your local

network.

Start Web Upload Starts uploading the file over the network.

TFTP Download Management

Use the TFTP Download Management menu to load software updates into the switch.
The download file should be an OmniStack
the agent will not accept it. The success of the download operation depends on the
accessibility of the TFTP server and the quality of the network connection. After
downloading the new software, the agent will automatically restart
shown on this screen are indicated in the following figure and table.

®

6124 binary file from Alcatel; otherwise the

®

6124 binary file from Alcatel; otherwise

itself. Parameters

Parameter Description

Server IP Address IP address of a TFTP server.
Download Mode The system downloads to permane nt flash ROM.
File Name The binary file to download.
Start TFTP Download Issues request to TFTP server to download the specified file.

3-13

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.

Configuration Upload Management

Use the Configuration Upload Management to save the switch configuration to a file
on a TFTP sever. Parameters shown on this screen are indicated in the following
figure and table.

Parameter Description

Server IP Address IP address of a TFTP server.
File Name The name of the file to contain the switch configuration settings.
Start Configuration

TFTP Upload

Configuration Download Management

Use the Configuration Download Management to restore switch configuration
settings from a file on a TFTP sever. Parameters shown on this screen are indicated
in the following figure and table.

Issues a request to upload the configuration settings to the specified file on
the TFTP server.

Parameter Description

Server IP Address IP address of a TFTP server.
File Name The name of the fil e t h at co nt a i ns th e sw it c h conf i gu r at i o n s et t i ng s yo u wi s h

Start Configuration
TFTP Download

to restore.
Issues a request to the TFTP server to download the specified file.

3-14

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; or set the aging time for deleting inactive entries. The information
displayed in the Address Table is indicated in the following figure and table.

Parameter Description

Aging Time Time-out period in seconds for aging out dynamically learned forwarding

Dynamic Address Counts The number of dynamically learned addresses.
Static Address Counts The number of statically configured addresses.
Address Table Sort Key Entries can be sorted by address or VLAN ID.
Address Table The system displays the MAC address of each node, and the port whose

New Static Address Use these fields to add or remove a static entry to the address table. Indicate

Add/Remove Adds/removes the selected address.
Clear Table Removes all addresses from the address table.

information.
Range: 10 - 415 secs; default: 300 secs.

address table includes this MAC address, the associated VLAN(s), and the
address status (i.e., dynamic or static).

the address, stack unit, port and VLAN group when adding a new entry.

3-15

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. For a more detailed description of how to use this algorithm, refer to
“Spanning Tree Algorithm” on page 4-1.

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.

Spanning Tree

The parameters shown in the following figure and table describe the current bridge
STA Information.

Parameter Description

Spanning Tree State Shows if the switch is enabled to participate in an STA-compliant network.
Bridge ID A unique identifier for this bridge, consisting of bridge priority plus MAC

Max Age The maximum time (in seconds) a device can wait without receiving a

Hello Time The time interval (in seconds) at which the root device transmits a configuration

Forward Delay The maximum time (in seconds) the root device will wait before changing

Designated Root The priority and MAC address of the device in the spanning tree that this switch

Root Port The number of the port on this switch that is closest to the root. This switch

Root Path Cost The path cost from the root port on this switch to the root device.
Configuration Changes The number of times the spanning tree has been reconfigured.
Last Topology Change The time since the spanning tree was last reconfigured.

address (where the address is normally taken from the agent).

configuration message before attempting to reconfigure.

message.

states (i.e., listening to learning to forwarding).

has accepted as the root device.

communicates with the root device through this port. If there is no root port,
then this switch has been accepted as the root device of the spanning tree
network.

3-16

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.
Blocked Port receives STA configuration messages, but does not forward

Listening Port will leave blocking state due to topology change, starts

Learning Port has transmitted configuration messages for an interval set by

Forwarding The port forwards packets, and continues learning addresses.
The rules defining port status are:

• A port on a network segment with no other STA compliant bridging device is
always forwarding.

• If two ports of a switch are connected to the same segment and there is no other
STA device attached to this segment, the port with the smaller ID forwards
packets and the other is blocked.

• All ports are blocked when the switch is booted, then some of them change state
to listening, to learning, and then to forwarding.

Forward Transitions The number of times the port has changed status to forwarding state.
Designated Cost The cost for a packet to travel from this port to the root in the current spanning tree

Designated Bridge The priority and MAC address of the device through which this port must

Designated Port The priority and number of the port on the designated bridging device through which

configuration. The slower the media, the higher the cost.

communicate to reach the root of the spanning tree.

this switch must communicate with the root of the spanning tree.

packets.

transmitting configuration messages, but does not yet forward
packets.

the Forward Delay parameter without receiving contradictory
information. Port address table is cleared, and the port begins
learning addresses.

3-17

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

When the Switch Becomes Root

Parameter Default Description

Hello Time 2 The time interval (in seconds) at which the root device transmits a

Max (Message)
Age

Forward Delay 15 The maximum time (in seconds) the root device will wait before changing

20 The maximum time (in seconds) a device can wait without receiving a

designated port. The device with the highest priority becomes the STA
root device. (Remember that the lower the numeric value, the higher the
priority.) However, if all devices have the same priority, the device with the
lowest MAC address will then become the root device.

Range: 0 - 65535

configuration message.
The minimum value is 1.

The maximum value is the lower of 10 or [(Max. Message Age / 2) -1].

configuration message before attempting to reconfigure. All device ports
(except for designated ports) should receive configuration messages at
regular intervals. Any port that ages out STA information (provided in the
last configuration message) becomes the designated port for the attached
LAN. If it is a root port, a new root port is selected from among the device
ports attached to the network.

The minimum value is the higher of 6 or [2 x (Hello Time + 1)].
The maximum value is the lower of 40 or [2 x (Forward Delay - 1)].

states (i.e., listening to learning to forwarding). This delay is required
because every device must receive information about topology changes
before it starts to forward frames. In addition, each port needs time to listen
for conflicting information that would make it return to a blocking state;
otherwise, temporary data loops might result.

Maximum value is 30.
Minimum value is the higher of 4 or [(Max. Message Age / 2) + 1].

3-18

Spanning Tree Algorithm (STA)

STA Port Configuration

The following figure and table describe STA configuration for ports or modules.

Parameter Default Description

Fast Forwarding
Mode (All Ports)

Priority 128 Defines the priority for the use of a port in the STA algorithm. If the path

Path Cost 100/19/4 This parameter is used by the STA algorithm to determine the best path

Fast Forward Enabled This enables/disables Fast Forwarding for the selected port. In this mode,

Enabled See “Fast Forward” in this table.

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. Where more than one port is assigned the highest priority,
the port with lowest numeric identifier will be enabled.
The range is 0 - 255.

between devices. Therefore, lower values should be assigned to ports
attached to faster media, and higher values assigned to ports with slower
media.

The default and recommend ed ran ge is:
Standard Ethernet: 100 (50~600)
Fast Ethernet: 19 (10~60)
Gigabit Ethernet: 4 (3~10)
The full range is 1 - 65535.

Note: Path cost takes precedence over port priority.

ports skip the Blocked, Listening and Learning states and proceed
straight to Forwarding. Fast For war ding enab les end -no de wor ksta tions
and servers to overcome time-out problems when the Spanning Tree
Algorithm is implemented in a network. Therefore, Fast Forwarding
should only be enabled for ports that are connected to an end-node
device.

3-19

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
Filtering Services*

Traffic Classes This switch provides mapping of user priorities to multiple traffic classes. (Refer to

Static Entry Individual
Port

VLAN Learning This switch uses Independent VLAN Learning (IVL), whereby each port maintains its

Configurable
PVID Tagging

Local VLAN Capable* A local bridge (that is, dedicated Spanning Tree) is applied to each individual VLAN.
* These functions are not available for the current firmware release.

Enables filtering of individual multicast addresses based on GMRP (GARP Multicast
Registration Protocol).

the Priority menu on page 3-22.)
This switch enables static filtering for unicast and multicast addresses. (Refer to the

Address Table Configuration on page 3-15.)

own VLAN filtering database.
This switch allows you to override the default PVID (Port VLAN ID) assigned to

untagged incoming frames under VLAN Port Configuration on page 3-30.

3-20

Configuring Bridge MIB Extensions

Bridge Settings

Parameter Description

Traffic Classes* Multiple traffic classes are supported by this switch as indicated under Bridge

GMRP* GARP Multicast Registration Protocol (GMRP) allows network devices to register

GVRP* GARP VLAN Registration Protocol (GVRP) defines a way for switches to exchange

* These functions are not available for the current firmware release.

Capabilities. However, you can disable this function by clearing the check box for this
parameter.

endstations with multicast groups.
IGMP Snooping is currently used by this switch to provid e automatic mu lticast filtering.

VLAN information in order to register necessary VLAN members on ports across the
network. This function should be enabled to permit VLANs groups which extend
beyond the local switch.

3-21

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 Weighted Fair 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.

Port Priority Configuration

Inbound frames that do not have any VLAN tags are tagged with the input port’s
default VLAN ID (PVID) and the default ingress user priority as shown in the
following screen, and then sorted into the appropriate priority queue at the output
port. (Note that if the output port is an untagged member of the associated VLAN,
these frames are stripped of all VLAN tags prior to transmission.)

The default priority for all ingress ports is zero. Therefore, any inbound frames that
do not have priority tags will be placed in the low priority queue of the output port.
You can use the Port Priority Configuration screen to adjust default priority for any
port as shown below.

Parameter Description

Port Numeric identifier for switch port.
Default Ingress

User Priority
Number of Egress Traffic

Classes

Default priority can be set to any value from 0~7, where 0~3 specifies the low
priority queue and 4~7 specifies the high priority queue.

Indicates that this switch supports two priority output queues.

3-22

Management Configuration

Port Traffic Class Information

This switch provides two priority levels with Weighted Fair 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.

Parameter Description

Port Numeric identifier for switch port.
User Priority Shows that user priorities 0~3 specify the low priority queue and 4~7 specify the

Class Range The priority queue classes available on this switch.

high priority queue.

Management Configuration

You an use the VLAN Management screen to configure the management access of
the switch.

Parameter Description

CPU Join VLAN Allows management access of the switch from all VLANs or only from a specified

VLAN ID The ID of the single VLAN with management access to the switch, if the “CPU

VLAN. If this field is set to “ONE” then the single VLAN with management acces
must be set in the “VLAN” field.

Join VLAN” field is set to “ONE”.

3-23

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. This can lead to broadcast storms in large networks that handle a lot of
NetBeui or IPX traffic. By using IEEE 802.1Q compliant VLANs, you can organize
any group of network nodes into separate broadcast domains, confining broadcast
traffic to the originating group. This also provides a more secure and cleaner
network environment. For more information on how to use VLANs, refer to “Virtual
LANs” on page 4-2. The VLAN configuration screens are described in the following
sections.

VLAN Basic Information

The VLAN Basic Information screen displays basic information on the VLAN type
supported by this switch.

Parameter Description

VLAN Version Number The VLAN version used by this switch as specified in the IEEE 802.1Q standard.
MAX VLAN ID Maximum VLAN ID recognized by this switch.
MAX Supported VLANs Maximum number of VLANs that can be configured on this switch.
Current Number of VLANs

Configured

The number of VLANs currently conf igur ed on this switch .

3-24

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. The current configuration is shown in the following screen.

Parameter Description

VLAN Entry Delete Count The number of times a VLAN entry has been deleted from this table.
VLAN ID The ID for the VLAN currently displayed.
Up Time at Creation The value of System Up Time (sysUpTime) when this VLAN was created.
Status Shows how this VLAN was added to the switch.

Dynamic GVRP: Automatically learned via GVRP.

Permanent: Added as a static entry.
Egress Ports Shows the ports which have been added to the displayed VLAN group.
Untagged Ports Shows the untagged VLAN port members.

3-25

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

New Allows you to specify the name and numeric identifier for a new VLAN group. (The

Status Enables/disables the specified VLAN.
Add Adds a new VLAN group to the current list.
Remove Removes a VLAN group from the current list.

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.

VLAN name is only used for management on this system; it is not added to the
VLAN tag.)

If a removed port is no longer be assigned to any other group as an untagged
port, it will automatically be assigned to VLAN group 1 as untagged.

3-26

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

VLAN The ID for the VLAN currently displayed.

Range: 1-2048
Name A user-specified symbolic name for this VLAN.

String length: 8 alphanumeric characters
Status Enables/disables the specified VLAN.

Use the following menu to add or remove a port to the displayed VLAN group. As
you can see from this example, all ports are included in VLAN 1 by default.

Parameter Description

Egress Ports Displays lists of the members and non-members of the specified VLAN.
Add Adds the port selected in the non-members list to the VLAN membe rs list.
Remove Removes the port selected in VLAN members list and places it in the

Note: If a removed port is no longer assigned to any other group as an untagged port, it

will automatically be assigned to VLAN group 1 as untagged.

non-members list.

3-27

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

Add Adds the port selected in the non-members list to the members list.
Remove Removes the port selected in the members list and places it in the non-members

GVRP is not supported by the current firmware version.

list.

Use the menu shown below to assign ports to the specified VLAN group as an IEEE

802.1Q tagged or untagged port. Assign ports as tagged if they are connected to

802.1Q VLAN compliant devices, or untagged if they are connected to
VLAN-unaware devices.

Parameter Description

Untagged Ports Adds an authorized egress port to the displayed VLAN as an untagged port.
Add Adds the port selected in the non-members list to the members list.
Remove Removes the port selected in the members list and places it in the non-members

Note: If a removed port is no longer assigned to any other group as an untagged port, it

will automatically be assigned to VLAN group 1 as untagged.

list.

3-28

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.
Add/Remove Add or remove selected VLAN groups for the port indicated in the Port Number

field.

3-29

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

Acceptable Frame Type This switch accepts “All” frame types, including VLAN tagged or VLAN untagged

Ingress Filtering If set to “True,” incoming frames for VLANs which do not include this port in their

GVRP Status* Enables or disables GVRP for this port. When disabled, any GVRP packets

GVRP Failed
Registrations*

GVRP Last PDU Origin* The Source MAC Address of the last GVRP message received on this port.
* GVRP is not available for the current firmware release.

to assign ports to the same untagged VLAN.

frames. Note that all VLAN untagged frames received on this port are assigned
to the PVID for this port.

member set will be discarded at the inbound port.

received on this port will be discarded and no GVRP registrations will be
propagated from other ports.

Note that GVRP must be enabled for the switch before this setting to take effect.
(See “Configuring Bridge MIB Extensions” on page 3-20.)

The total number of failed GVRP registrations, for any reason, on this port.

3-30

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. Although this approach reduces the network overhead required by a
multicast server, the broadcast traffic must be carefully pruned at every multicast
switch/router it passes through to ensure that traffic is only passed on the hosts
which subscribed to this service.

This switch uses IGMP (Internet Group Management Protocol) to query for any
attached hosts who want to receive a specific multicast service. The switch looks up
the IP Multicast Group used for this service and adds any port that received a similar
request to that group. It then propagates the service request on to any neighboring
multicast switch/router to ensure that it will continue to receive the multicast service.
(For more information, see “IGMP Protocol” on page 4-5.)

Configuring IGMP

This protocol allows a host to inform its local switch/router that it wants to receive
transmissions addressed to a specific multicast address group. Use the IGMP
Configuration screen to set key parameters for multicast filtering as shown below.

Parameter Description

IGMP Status If enabled, the switch will monitor network traffic to determine which hosts want

Act as IGMP Querier* If enabled, the switch can serve as the “querier,” which is responsible for asking

IGMP Query Count The maximum number of queries issued for which there has been no response

IGMP Report Delay The time (in seconds) between receiving an IGMP Report for an IP multicast

* This function is not available for the current firmware release.

Note: The default values are indicated in the sample screen.

to receive multicast traffic.

hosts if they want to receive multicast traffic.

before the switch takes action to solicit reports.

address on a port before the switch sends an IGMP Query out that port and

removes the entry from its list.

3-31

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.
Learned by Indicates the manner in which this address was learned: Dynamic or IGMP.
Multicast Group Port Lists The switch ports registered for the indicated multicast service.

3-32