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ip igmp query-interval
This command configures the frequency at which host query messages are sent.
Use the no form to restore the default.
Syntax
ip igmp query-interval seconds
no ip igmp query-interval
seconds - The frequency at which the switch sends IGMP host-query
messages. (Range: 1-255)
Default Setting
125 seconds
Command Mode
Interface Configuration (VLAN)
Command Usage
• Multicast routers send host query messages to determine the interfaces that
are connected to downstream hosts requesting a specific multicast service.
Only the designated multicast router for a subnet sends host query messages,
which are addressed to the multicast address 224.0.0.1.
• For IGMP Version 1, the designated router is elected according to the
multicast routing protocol that runs on the LAN. But for IGMP Version 2, the
designated querier is the lowest IP-addressed multicast router on the subnet.
Example
The following shows how to configure the query interval to 100 seconds:
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)
Console(config-if)#ip igmp query-interval 100
Console(config-if)#