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Command Reference for AT-IX5-28GPX High Availability, High Power Video Surveillance PoE Switch
C613-50057-01 REV A
AlliedWare Plus™ Operating System - Version 5.4.5-0.x
IGMP
AND
IGMP S
NOOPING
C
OMMANDS
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
awplus#
configure terminal
awplus(config)#
interface vlan2
awplus(config-if)#
ip igmp snooping querier
Validation
Commands
show ip igmp interface
show running-config