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Catalyst 6500 Series Switch Command Reference—Release7.6
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Chapter2 Catalyst 6500 Series Switch and ROM Monitor Commands
set igmp ratelimit
Usage Guidelines The set igmp ratelimit {enable | disable} command is supported in both text and binary configuration
modes.
If IGMP rate limiting and multicast are enabled, multicast router ports might age out sporadically
because the rate of the multicast control packets (such as PIMv2 hellos or IGMP general queries)
exceeds the IGMP rate limit watermarks that were configured. The default value for these watermarks
is 100. We recommend that you increase the PIMv2 hello ratelimit to 3000 by entering set igmp
ratelimit pimv2 3000. You can also increase the IGMP general queries rate limit; we recommend that
you set the value to 500 by entering set igmp ratelimit general-query 500.
Examples This example shows how to enable IGMP rate limiting:
Console> (enable) set igmp ratelimit enable
IGMP Ratelimiting enabled
Console> (enable)
This example shows how to set the IGMP rate limit for MOSPF2 to 550 packets per every 30 seco nds:
Console> (enable) set igmp ratelimit mospf2 550
MOSPF2 Watermark set to allow 550 messages in 30 seconds
Console> (enable)
This example shows how to set the IGMP ratel limit for PIMv2 1000 packets pe r every 30 second s:
Console> (enable) set igmp ratelimit pimv2 1000
PIMV2 Watermark set to allow 1000 messages in 30 seconds
Console> (enable)
Related Commands show igmp ratelimit-info