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Enabling igmp immediate leave, Figure 3-134 igmp configuration – SMC Networks SMC Tiger 10/100 SMC6128PL2 User Manual

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Multicast Filtering

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Web – Click IGMP Snooping, IGMP Configuration. Adjust the IGMP settings as
required, and then click Apply. (The default settings are shown below.)

Figure 3-134 IGMP Configuration

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

Enabling IGMP Immediate Leave

The switch can be configured to immediately delete a member port of a multicast
service if a leave packet is received at that port and the immediate-leave function is
enabled for the parent VLAN.

Command Usage
• If immediate leave is not used, a multicast router (or querier) will send a

group-specific query message when an IGMPv2/v3 group leave message is
received. The router/querier stops forwarding traffic for that group only if no host
replies to the query within the specified timeout perid. Note that the timeout period

Console(config)#ip igmp snooping

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Console(config)#ip igmp snooping querier

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Console(config)#ip igmp snooping query-count 10

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Console(config)#ip igmp snooping query-interval 100

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Console(config)#ip igmp snooping query-max-response-time 20

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Console(config)#ip igmp snooping router-port-expire-time 300

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Console(config)#ip igmp snooping version 2

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Console(config)#exit
Console#show ip igmp snooping

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Service status: Enabled
Querier status: Enabled
Leave proxy status: Disabled
Query count: 10
Query interval: 100 sec
Query max response time: 20 sec
Router port expire time: 300 sec
Immediate Leave Processing: Disabled on all VLAN
IGMP snooping version: Version 2
Console#