Ip Igmp Snooping - ADTRAN AOS Version R10.1.0 Command Reference Manual

Command Reference Guide

ip igmp snooping

Use the ip igmp snooping command to globally enable Internet Group Management Protocol (IGMP)
snooping. Use the no form of this command to disable global IGMP snooping.
Global IGMP snooping overrides the virtual local area network (VLAN) IGMP snooping.
If global snooping is disabled, you cannot enable VLAN IGMP snooping. If global
snooping is enabled, you can enable or disable VLAN IGMP snooping.
Syntax Description
No subcommands.
Default Values
By default, IGMP snooping is enabled.
Command History
Release 12.1
Functional Notes
IGMP snooping is a method of preventing switches from flooding all ports with received multicast streams.
By monitoring the conversations between a host and a router, the switch can determine which multicast
streams will interest a host and load its own forwarding tables to take advantage of that knowledge. When
the host sends a leave message to the router, the switch removes the entries after a timeout period.
Usage Examples
The following example globally enables IGMP snooping:
(config)#ip igmp snooping
60000CRG0-35E
Command was introduced.
Copyright © 2012 ADTRAN, Inc.
Global Configuration Mode Command Set
1035