Enabling Igmp Immediate Leave; Figure 3-97 Igmp Configuration - SMC Networks SMC8126L2 Management Manual

3
Configuring the Switch
Web – Click IGMP Snooping, IGMP Configuration. Adjust the IGMP settings as
required, and then click Apply. (The default settings are shown below.)
CLI – This example modifies the settings for multicast filtering, and then displays the
current status.
Console(config)#ip igmp snooping
Console(config)#ip igmp snooping querier
Console(config)#ip igmp snooping query-count 10
Console(config)#ip igmp snooping query-interval 100
Console(config)#ip igmp snooping query-max-response-time 20
Console(config)#ip igmp snooping router-port-expire-time 300
Console(config)#ip igmp snooping version 2
Console(config)#exit
Console#show ip igmp snooping
Service status:
Querier status:
Leave proxy status:
Query count:
Query interval:
Query max response time: 20 sec
Router port expire time: 300 sec
Immediate Leave Processing: Disabled on all VLAN
IGMP snooping version:
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.
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Figure 3-97 IGMP Configuration

Enabled
Enabled
Disabled
10
100 sec
Version 2
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