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Sun Ethernet Fabric Operating System

IGS Administration Guide

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Document Information

Using This Documentation

Product Notes

Related Documentation

Acronyms and Abbreviations

CLI Command Modes

Feedback

Support and Accessibility

IGS Overview

IGS Protocol Description

Topology Example

Configuration Prerequisites

Default Settings

Configuring IGS

Enabling and Disabling IGS

Enable IGS Globally

Enable IGS on a Specific VLAN Interface

Disable IGS

Configure Multicast Forwarding Mode

Configure the IGS Version

Configuring a Multicast Router Port

Enable Multicast Router Port

Disable a Multicast Router Port

Configure the Multicast Router Port Time-Out Value

Configuring IGS Querier Settings

Enable IGS as a Querier

Configure the IGMP Snooping Query Interval

Configuring Proxy Reporting

Disable Proxy Reporting

Enable Proxy Reporting

Configuring the Port-Purge Interval

Set the Port-Purge Interval

Reset the Port-Purge Interval

Configuring Leave Processing

Enable the Fast Leave Process

Disable the Fast Leave Process

Configuring the Report Suppression Interval

Enable the Report Suppression Interval

Disable the Report Suppression Interval

Configuring the Group Query Interval Value

Set the Group Query Interval Value

Reset the Group Query Interval

Configuring the Group Retry Count Value

Set the Group Retry Count Value

Reset the Group Retry Count Value

Configuring Report Forwarding

Enable Report Forwarding

Disable Report Forwarding

Reset Report Forwarding to the Default Value

Clearing the Snooping Statistics

Clear the Statistics for a Specific VLAN

Clear the Statistics for All VLANs

Configuring the General Query Transmission Option

Enable the General Query Transmission Option

Disable the General Query Transmission Option

Display Statistics

Flow-Based Configurations

Flow-Based Configuration Example

Configuration Parameters

Configure the MAC-Based Multicast Forwarding Mode

Configure the IP-Based Multicast Forwarding Mode

Configure a Static Router Port

Configure the IGS Version

Configure Queriers in Flow-Based Configurations

Configure Proxy Reporting in Flow-Based Configurations

Configure Queriers in Flow-Based Configurations

You can configure an IGS switch to send IGMP queries when no IGMP routers are present in a VLAN. A switch must be configured as a querier for a VLAN only when there are no queriers or routers in the network. If you have questions about the topology used in this section, see Flow-Based Configuration Example. For the default settings, see Default Settings.

  1. On DUT1, configure the multicast forwarding mode for IGS as MAC-based.
    SEFOS# configure terminal
    SEFOS(config)# snooping multicast-forwarding-mode mac
  2. Disable GMRP.
    SEFOS(config)# set gmrp disable
  3. Enable IGS.
    SEFOS(config)# ip igmp snooping
  4. Configure VLAN 2 in the switch.
    SEFOS(config)# vlan 2
  5. Configure the static VLAN entry (VLAN 2) with the required ports.
    SEFOS(config-vlan)# ports extreme-ethernet 0/1-3
  6. Configure VLAN 2 as querier.
    SEFOS(config-vlan)# ip igmp snooping querier
  7. Configure the query-interval time as 60 seconds.
    SEFOS(config-vlan)# ip igmp snooping query-interval 60
    SEFOS(config-vlan)# exit
  8. Configure VLAN 3 in the switch.
    SEFOS(config)# vlan 3
  9. Configure the static VLAN entry (VLAN 3) with the required ports.
    SEFOS(config-vlan)# ports extreme-ethernet 0/4-5
    SEFOS(config-vlan)# exit
  10. Review the IGS-related configurations.
    SEFOS# show ip igmp snooping globals
     
    Snooping Configuration
    -----------------------------
    IGMP Snooping globally enabled
    IGMP Snooping is operationally enabled
    IGMP Snooping Enhanced mode is disabled               
    Transmit Query on Topology Change globally disabled
    Multicast forwarding mode is MAC based
    Proxy globally disabled
    Proxy reporting globally enabled
    Filter is disabled
    Router port purge interval is 125 seconds
    Port purge interval is 260 seconds
    Report forward interval is 5 seconds
    Group specific query interval is 2 seconds
    Reports are forwarded on router ports
    Group specific query retry count is 2
    Multicast VLAN disabled
    Leave config level is Vlan based
  11. Review the IGS-related information in VLAN 2.
    SEFOS# show ip igmp snooping vlan 2
     
    Snooping VLAN Configuration for the VLAN 2
      IGMP Snooping enabled
      IGMP configured version is V3
      Fast leave is disabled
      Snooping switch is configured as Querier
      Snooping switch is acting as Querier
      Query interval is 60 seconds
      Port Purge Interval is 130 seconds
      Max Response Code is 100, Time is 10 seconds
  12. Review the configuration information for VLAN 2.
    SEFOS# show vlan id 2
     
    Vlan database-------------Vlan ID                 : 2Member Ports            : Ex0/1, Ex0/2, Ex0/3Untagged Ports          : NoneForbidden Ports         : NoneName                    :Status                  : Permanent----------------------------------------------------
  13. Review the configuration information for VLAN 3.
    SEFOS# show vlan id 3
     
    Vlan ID                 : 3Member Ports            : Ex0/4, Ex0/5Untagged Ports          : NoneForbidden Ports         : NoneName                    :Status                  : Permanent----------------------------------------------------

    Because VLAN 2 is configured as a querier, the switch sends a general query every 60 seconds on the member ports of VLAN 2.