HP VPN Firewall Appliances Network Management Configuration Guide

914
Ste
p
Command Remarks
7. Configure the maximum
response delay for MLD
general query messages.
mld max-response-time interval 10 seconds by default.
8. Configure the MLD last
listener query interval.
mld last-listener-query-interval
interval
1 second by default.
9. Configure the MLD other
querier present interval.
mld timer other-querier-present
interval
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."
Enabling 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.
When fast-leave processing is 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.
Enabling MLD fast-leave processing globally
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter MLD view.
mld N/A
3. Enable MLD fast-leave
processing.
fast-leave [ group-policy acl6-number ] Disabled by default.
Enabling MLD fast-leave processing on an interface
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type interface-number N/A
3. Enable MLD fast-leave
processing.
mld fast-leave [ group-policy
acl6-number ]
Disabled by default.