Enabling Mld Fast-Leave Processing - HP MSR ASM Configuration Manual

Configuring MLD query and response parameters on an interface
Step
1. Enter system view.
2. Enter interface view.
3. Configure the MLD querier's
robustness variable.
4. Configure the startup query
interval.
5. Configure the startup query
count.
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.

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
Step
1. Enter system view.
Command
system-view
interface interface-type
interface-number
mld robust-count robust-value
mld startup-query-interval interval
mld startup-query-count value
mld timer query interval
mld max-response-time interval
mld last-listener-query-interval
interval
mld timer other-querier-present
interval
Command
system-view
282
Remarks
N/A
N/A
2 by default.
A higher robustness variable
makes the MLD querier more
robust but results in a longer IPv6
multicast group timeout time.
By default, the startup query
interval is one-quarter of the "MLD
query interval."
By default, the startup query count
is the same as the MLD querier's
robustness variable.
125 seconds by default.
10 seconds by default.
1 second by default.
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
N/A