Configuring Mld Fast Leave Processing - HP A6600 Configuration Manual

To do...
6. Configure the MLD query
interval.
7. Configure the maximum
response delay for MLD
general query messages.
8. Configure the MLD last listener
query interval.
9. Configure the MLD other
querier present interval.
Make sure that the other querier present interval is greater than the MLD query interval. Otherwise the
MLD querier might frequently change.
Make sure that the MLD query interval is greater than the maximum response delay for MLD general
queries. Otherwise, multicast group members might be wrongly removed.

Configuring MLD fast leave processing

In some applications, such as ADSL dial-up networking, only one multicast receiver host is attached to a
port of the MLD querier. To allow fast response to the MLD done messages of the host when it switches
frequently from one IPv6 multicast group to another, you can enable MLD fast leave processing on the
MLD querier.
With fast leave processing enabled, after receiving an MLD done message from a host, the MLD querier
sends a leave notification to the upstream immediately without first sending MLD multicast-address-specific
queries. In this way, the leave latency is reduced on one hand, and the network bandwidth is saved on
the other hand.
Configuring MLD fast leave processing globally
To do...
1. Enter system view.
2. Enter MLD view.
3. Configure MLD fast leave
processing.
Configuring MLD fast leave processing on an interface
To do...
1. Enter system view.
Use the command...
mld timer query interval
mld max-response-time interval
mld last-listener-query-interval
interval
mld timer other-querier-present
interval
Use the command...
system-view
mld
fast-leave [ group-policy
acl6-number ]
Use the command...
system-view
284
Remarks
Optional.
125 seconds by default.
Optional.
10 seconds by default.
Optional.
1 second by default.
Optional.
By default, the other querier
present interval is determined by
the formula "Other querier present
interval (in seconds) = [ MLD
query interval ] × [ MLD querier's
robustness variable ] + [ maximum
response delay for MLD general
query ] /2".
Remarks
—
—
Required.
Disabled by default.
Remarks
—