Allied Telesis AT-8700XL, RAPIER I, X900-48FE Monitoring reception of Igmp general query messages

Software Version 2.8.1 59

Monitoring reception of IGMP general query messages

You can configure the IGMP proxy agent to monitor the reception of IGMP general query messages on an interface. If an IGMP general query message is not received on the interface within a specified time interval, IGMP generates an igmpGeneralQueryNotReceivedEvent SNMP trap ({ enterprises(1) alliedTelesyn(207) mibObject(8) brouterMib(4) atRouter(4) traps(2) igmpTraps(1) 1 }) containing the ifName object for the interface, and the following log message:

Message	IGMP - No general query within time-interval
	seconds on interface
Severity	5 / IMPORTANT
Module	5 / IPG
Log Type	021 / MSGS
Log Subtype	002 / WARN
Recommended	Check for connectivity between the device and the multicast router
Action	acting as a Querier on the sub-network.
	Check the current status of the Querier.
	If the interface which generated the log message is not a
	downstream multicasting port, use the set ip igmp interface
	command to set the querytimeout to zero.

To enable monitoring on an interface and set the time interval, use the command:

set ip igmp interface=interface querytimeout={none01..65535}

To display information about IGMP and the IGMP proxy agent, use the command:

show ip igmp

Command Changes

The following table summarises the new and modified commands:

Command	Change
set ip igmp interface	New command
show ip igmp	New General Query Reception Timeout field.

Software Version 2.8.1 C613-10477-00 REV B