Microsoft ES4625, ES4649 manual Ip igmp version

4 Command Line Interface

Command Mode

Interface Configuration (VLAN)

Command Usage

•A multicast client sends an IGMP leave message when it leaves a group. The router then checks to see if this was the last host in the group by sending an IGMP query and starting a timer based on this command. If no reports are received before the timer expires, the group is deleted.

•This value may be tuned to modify the leave latency of the network. A reduced value results in reduced time to detect the loss of the last member of a group.

Example

The following shows how to configure the maximum response time to 10 seconds:

Console(config-if)#ip igmp last-memb-query-interval 10

Console(config-if)#

ip igmp version

This command configures the IGMP version used on an interface. Use the no form of this command to restore the default.

Syntax

ip igmp version {1 2} no ip igmp version

•1 - IGMP Version 1

•2 - IGMP Version 2

Default Setting

IGMP Version 2

Command Mode

Interface Configuration (VLAN)

Command Usage

•All routers on the subnet must support the same version. However, the multicast hosts on the subnet may support either IGMP version 1 or 2.

•The switch must be set to version 2 to enable the ip igmp max-resp-interval (page 4-237).

Example

The following configures the switch to use IGMP Version 1 on the selected interface:

Console(config-if)#ip igmp version 1

Console(config-if)#

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