Allied Telesis AT-9800, RAPIER I, X900-48FE, AT-8900, AT-8700XL, AT-9900 manual Set ip igmp interface

62 Internet Group Management Protocol (IGMP) Enhancements Release Note

The groupaddress parameter specifies an IP multicast group address or a range of IP multicast group addresses to match. Set groupaddress to:

■0.0.0.0 to filter IGMP general query messages

■a multicast address or a range of multicast addresses to filter IGMP group-specific query messages, report messages, and leave messages.

The action parameter specifies the action to take when an IGMP message with a message type matching msgtype and a group address matching groupaddress is received. If you specify include, the message is processed as normal by IGMP. If you specify exclude, the message is excluded from processing by IGMP, and the packet is discarded. The default is include.

If an IGMP filter contains at least one entry for a particular IGMP message type, then messages of the same type for group addresses that do not match any entries in the filter are implicitly excluded and the packets are discarded.

set ip igmp interface

Syntax SET IP IGMP INTerface=interface

QUERYtimeout={NONE01..65535}

where:

■interface is an interface name formed by concatenating a Layer 2 interface type, an interface instance, and optionally a hyphen followed by a logical interface number from 0 to 15. If a logical interface is not specified, 0 is assumed.

Description This new command enables the monitoring of incoming IGMP general query messages on an interface, and generates a log message and an SNMP trap if an IGMP general query message is not received on the interface within a specified time interval.

The interface parameter specifies the IP interface to monitor for IGMP general query messages. Valid interfaces are:

■eth (such as eth0, eth0-1)

■PPP (such as ppp0, ppp1-1)

■FR (such as fr0, fr0-1)

■VLAN (such as vlan1, vlan1-1)

Modifying IGMP on an IP interface or a logical interface will change the behaviour of IGMP on all logical interfaces associated with the IP interface.

The querytimeout parameter specifies the maximum expected time interval, in seconds, between successive IGMP general query messages arriving on the interface. If you specify none or 0, monitoring is disabled. If you specify a non-zero time interval, IGMP generates a log message and an igmpGeneralQueryNotReceivedEvent SNMP trap if an IGMP general query message is not received on the interface within the time interval. Monitoring is only active when:

■IGMP is enabled globally

■IGMP is enabled on the interface

■the interface is active

The default is none.

Software Version 2.8.1 C613-10477-00 REV B