Accton Technology ES3552XA, ES3526XA manual Enabling Igmp Immediate Leave

Multicast Filtering 3

CLI – This example modifies the settings for multicast filtering, and then displays the current status.

Console(config)#ip igmp snooping		4-212
Console(config)#ip igmp snooping querier		4-216
Console(config)#ip igmp snooping query-count 10		4-216
Console(config)#ip igmp snooping query-interval 100		4-217
Console(config)#ip igmp snooping query-max-response-time 20		4-218
Console(config)#ip igmp snooping router-port-expire-time 300		4-218
Console(config)#ip igmp snooping version 2		4-213
Console(config)#exit
Console#show ip igmp snooping		4-214
Service status	: Enabled
Querier status	: Enabled
Query count	: 10
Query interval	: 100 sec
Query max response time : 20 sec
Router port expire time : 300 sec
IGMP snooping version	: Version 2
Console#

Enabling IGMP Immediate Leave

The IGMP snooping immediate-leave feature enables a Layer 2 LAN interface to be removed from the multicast forwarding table without first sending an IGMP group-specific query to the interface. Upon receiving a group-specific IGMPv2 leave message, the switch immediately removes the interface from the Layer 2 forwarding table entry for that multicast group, unless a multicast router was learned on the port.

IGMP immediate leave improves bandwidth management for all hosts in a switched network.

Command Attributes

•VLAN ID – ID of configured VLAN (1-4093).

•Immediate Leave – Enable or disable IGMP immediate leave for the selected VLAN.

Web – Click IGMP Snooping, IGMP Immediate Leave.

Figure 3-99 IGMP Immediate Leave

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