Changing The Maximum Query Response Time For Igmpv2 - Cisco Catalyst 3550 series Software Configuration Manual
Multilayer switch
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- Reference manual (58 pages) ,
- Datasheet (21 pages) ,
- Manual (19 pages)
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Chapter 34
Configuring IP Multicast Routing
You can determine the query interval by entering the show ip igmp interface interface-id privileged
EXEC command.
Beginning in privileged EXEC mode, follow these steps to change the IGMP query timeout:
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3
ip igmp querier-timeout seconds
Step 4
end
Step 5
show ip igmp interface [interface-id]
Step 6
copy running-config startup-config
To return to the default timeout value, use the no ip igmp query-timeout interface configuration
command.
Changing the Maximum Query Response Time for IGMPv2
If you are using IGMPv2, you can change the maximum query response time advertised in IGMP
queries. The maximum query response time allows the multilayer switch to quickly detect that there are
no more directly connected group members on a LAN. Decreasing the value allows the switch to prune
groups faster.
Beginning in privileged EXEC mode, follow these steps to change the maximum query response time:
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3
ip igmp query-max-response-time
seconds
Step 4
end
Step 5
show ip igmp interface [interface-id]
Step 6
copy running-config startup-config
To return to the default query-response time, use the no ip igmp query-max-response-time interface
configuration command.
78-11194-09
Purpose
Enter global configuration mode.
Enter interface configuration mode, and specify the interface to be
configured.
Specify the IGMP query timeout.
The default is 60 seconds (twice the query interval). The range is 60
to 300.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Purpose
Enter global configuration mode.
Enter interface configuration mode, and specify the interface to be
configured.
Change the maximum query response time advertised in IGMP queries.
The default is 10 seconds. The range is 1 to 25.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Catalyst 3550 Multilayer Switch Software Configuration Guide
Configuring Optional IGMP Features
34-33
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