Enabling The Igmp Querier - Cisco WS-C6506 Software Manual

Configuring IGMP Snooping on the Switch
This example shows how to enable multicast rate limiting and specify a rate limit:
Console> (enable) set multicast ratelimit enable
Enabling Multicast Ratelimiting
Set a non-zero threshold rate to operationally enable multicast ratelimiting
Console> (enable) set multicast ratelimit rate 1000
Multicast ratelimit watermark rate is set to 1000 pps
Console> (enable) show multicast ratelimit-info
Multicast ratelimiting enabled
Ratelimit threshold rate: 1000 pps
VLAN
----
Console> (enable)

Enabling the IGMP Querier

Enter the IGMP querier to support IGMP snooping within a VLAN where PIM and IGMP are not
configured because the multicast traffic does not need to be routed.
You can enable the IGMP querier on all the switches in the VLAN. One switch is elected as the
Note
querier.
To enable the IGMP querier in a VLAN, perform one of these tasks in privileged mode:
Task
Enable IGMP querier on a VLAN or on all
VLANs.
Specify the time interval between the general
queries sent by the switch. The default is
125 seconds.
Specify the amount of time that the switch should
wait before electing itself as the querier in the
absence of general queries. The default is
300 seconds.
Specify an IP address for the IGMP querier. If you
do not specify an IP address, the default IP address
is 0.0.0.0.
Display IGMP querier information.
This example shows how to enable the IGMP querier and display querier information:
Console> (enable) set igmp querier enable 4001
IGMP querier is enabled for VLAN(s) 4001
Console> (enable) set igmp querier 4001 qi 130
QI for VLAN(s) 4001 set to 130 second(s)
Console> (enable) set igmp querier address 40.1.1.1 4001
Querier Address for vlan 4001 set to 40.1.1.1
Console> (enable) show igmp querier information
VLAN Querier Address Querier State
---- --------------- --------------------- -------------- -------- --------
4001 40.1.1.1
Console> (enable)
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
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RateLimited-Since
------------------
QUERIER
Ratelimited-for(seconds)
----------------------
Command
set igmp querier {disable | enable} vlan
set igmp querier vlan qi val
set igmp querier vlan oqi val
set igmp querier address ip_address vlan
show igmp querier information
Query Tx Count QI (sec) OQI (sec)
0
Chapter 51 Configuring Multicast Services
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