Multicast Filtering Commands
4-237
4
ip igmp max-resp-interval
This command configures the maximum response time advertised in IGMP queries.
Use the no form of this command to restore the default.
Syntax
ip igmp max-resp-interval seconds
no ip igmp max-resp-interval
seconds - The report delay advertised in IGMP queries. (Range: 1-255)
Default Setting
10 seconds
Command Mode
Interface Configuration (VLAN)
Command Usage
• The switch must be using IGMPv2 for this command to take effect.
• This command defines how long any responder (i.e., client or router) still in the
group has to respond to a query message before the router deletes the group.
• By varying the Maximum Response Interval, you can tune the burstiness of
IGMP messages passed on the subnet; where larger values make the traffic
less bursty, as host responses are spread out over a larger interval.
• The number of seconds represented by the maximum response interval must
be less than the Query Interval (page 4-236).
Example
The following shows how to configure the maximum response time to 20 seconds:
Related Commands
ip igmp version (4-238)
ip igmp query-interval (4-236)
ip igmp last-memb-query-interval
This command configures the last member query interval. Use the no form of this
command to restore the default.
Syntax
ip igmp last-memb-query-interval seconds
no ip igmp last-memb-query-interval
seconds - The report delay for the last member query. (Range: 1-255)
Default Setting
1 second
Console(config-if)#ip igmp max-resp-interval 20
Console(config-if)#
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