Enhancements to mld and mld snooping (cr00011490) – Allied Telesis AR700 Series User Manual

Page 49

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Enhancements to MLD and MLD Snooping (CR00011490)

49

Version 275-05
C613-10473-00 REV D

Enable and Disable Backoff

BGP backoff can now be enabled or disabled using the commands:

enable bgp backoff

disable bgp backoff

BGP backoff is disabled by default, however it automatically enables the first time a peer is added.

Enhancements to MLD and MLD Snooping (CR00011490)

The following enhancements were made to MLD and MLD Snooping, in accordance with RFC 3810, Multicast Listener Discovery Version 2 (MLDv2) for IPv6.

MLD Packet Formats

MLD messages are now all sent with a hop limit of 1, a link-local source address, and the other format requirements of RFC 3810.

ICMP type for MLDv2 Reports

MLD Report messages now have an ICMP type of 143 by default, as specified by RFC 3810. The previous value was 255.

If you need to maintain backwards compatibility with earlier releases that use an ICMP type of 255, you can do so by using the new draftcompat=yes option in
the command:

enable ipv6 mld interface=interface draftcompat={yes|no}

This enables the interface to receive MLDv2 reports with an ICMP type of 255. The default for draftcompat is no.

MLD Snooping Group Membership Display

The command show mldsnooping no longer displays the port members of the “All Routers” group. This change makes the output of this command more like
output from the command show igmpsnooping.

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