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Catalyst 6500 Series Switch Command Reference—Release 8.1
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Chapter 2 Catalyst 6500 Series Switch and ROM Monitor Commands
set igmp ratelimit
set igmp ratelimit
To enable or disable IGMP rate limiting or to set the rate limit for IGMP snooping packets, use the
set igmp ratelimit command.
set igmp ratelimit {enable | disable}
set igmp ratelimit {dvmrp | general-query | mospf1 | mospf2 | pimv2} rate
Syntax Description
Defaults IGMP rate limiting is disabled.
The default rate limits are as follows:
• dvmrp is 100 packets.
• general-query is 100 packets.
• mospf1 is 100 packets.
• mospf2 is 100 packets.
• pimv2 is 100 packets.
Command Types Switch command.
Command Modes Privileged.
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
enable Enables IGMP rate limiting.
disable Disables IGMP rate limiting.
dvmrp Sets the IGMP rate limit for Distance Vector Multicast Routing Protocol
(DVMRP) packets.
general-query Sets the IGMP rate limit for general query packets.
mospf1 Sets the IGMP rate limit for Multicast Extensions of OSPF (MOSPF) version 1
packets.
mospf2 Sets the IGMP rate limit for Multicast Extensions of OSPF (MOSPF) version 2
packets.
pimv2 Sets the IGMP rate limit for Protocol Independent Multicast (PIM) version 2
packets.
rate Rate limit; valid values are from 1 to 65535 packets per 30 seconds.
