DETAILED STEPS
PurposeCommand or Action
Enters the global configuration mode.configure terminal
Example:
Switch# configure terminal
Step 1
Specifies the interface on which you want to enable multicast
routing, and enters interface configuration mode.
interface interface-id
Example:
Switch(config)# interface
Step 2
gigabitethernet 1/0/1
Specifies the IGMP query timeout.
ip igmp querier-timeout seconds
Step 3
Example:
Switch(config-if)# ip igmp
The default is 60 seconds (twice the query interval). The
range is 60 to 300.
To return to the default setting, use the no ip igmp
querier-timeout interface configuration command.
Note
querier-timeout 120
Returns to privileged EXEC mode.end
Example:
Switch(config-if)# end
Step 4
Verifies your entries.
show ip igmp interface [interface-id]
Example:
Switch# show ip igmp interface
Step 5
(Optional) Saves your entries in the configuration file.copy running-config startup-config
Example:
Switch# copy running-config
Step 6
startup-config
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 enables the switch to quickly detect that there are no more directly
connected group members on a LAN. Decreasing the value enables the switch to prune groups faster.
Catalyst 2960-XR Switch IP Multicast Routing Configuration Guide, Cisco IOS Release 15.0(2)EX1
OL-29426-01 23
Understanding Cisco's Implementation of IP Multicast Routing
Changing the Maximum Query Response Time for IGMPv2
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