C613-50100-01 REV C Command Reference for x930 Series 1615
AlliedWare Plus™ Operating System - Version 5.4.6-1.x
IGMP AND IGMP SNOOPING COMMANDS
IP
IGMP SNOOPING QUERIER
ip igmp snooping querier
Overview Use this command to enable IGMP querier operation when no multicast routing
protocol is configured. When enabled, the IGMP Snooping querier sends out
periodic IGMP queries for all interfaces. This command applies to interfaces
configured for IGMP Snooping.
Use the no variant of this command to disable IGMP querier configuration.
Syntax
ip igmp snooping querier
no ip igmp snooping querier
Mode Interface Configuration for a VLAN interface.
Usage The IGMP Snooping querier uses the 0.0.0.0 Source IP address because it only
masquerades as a proxy IGMP querier for faster network convergence.
It does not start, or automatically cease, the IGMP Querier operation if it detects
query message(s) from a multicast router.
If an IP address is assigned to a VLAN, which has IGMP querier enabled on it, then
the IGMP Snooping querier uses the VLAN’s IP address as the Source IP Address in
IGMP queries.
The IGMP Snooping Querier will not stop sending IGMP Queries if there is another
IGMP Snooping Querier in the network with a lower Source IP Address.
NOTE: Do not enable the IGMP Snooping Querier feature on a Layer 2 device when
there is an operational IGMP Querier in the network.
Example To configure vlan2 as a Snooping querier, use the commands:
awplus# configure terminal
awplus(config)# interface vlan2
awplus(config-if)# ip igmp snooping querier
Related
Commands
show ip igmp interface
show running-config
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