Enabling Fast-Leave Processing - HP MSR1002-4 Configuration Manual

Configuring the IGMP query and response parameters on an interface
Step
1. Enter system view.
2. Enter interface view.
3. Set the
robustness variable.
4. Set the IGMP startup query
interval.
5. Set the IGMP startup query
count.
6. Set the IGMP general query
interval.
7. Set the IGMP last member
query interval.
8. Set the IGMP last member
query count.
9. Set the maximum response
time
queries.
10. Set the IGMP other querier
present timer.

Enabling fast-leave processing

This feature enables an IGMP querier to send leave notifications to the upstream without sending
group-specific or group-and-source-specific queries after receiving a leave message. Use this
feature to reduce leave latency and to preserve the network bandwidth.
The fast-leave processing configuration takes effect only when the device runs IGMPv2 or IGMPv3.
To enable fast-leave processing:
Step
1. Enter system view.
2. Enter interface view.
3. Enable
processing.
IGMP querier's
for IGMP general
fast-leave
Command
system-view
interface interface-type
interface-number
igmp robust-count count
igmp startup-query-interval
interval
igmp startup-query-count count
igmp query-interval interval
igmp
last-member-query-interval
interval
igmp last-member-query-count
count
igmp max-response-time time
igmp
other-querier-present-interval
interval
Command
system-view
interface interface-type
interface-number
igmp fast-leave [ group-policy
ipv4-acl-number ]
75
Remarks
N/A
N/A
By default, the IGMP querier's
robustness variable is 2.
By default, the IGMP startup
query interval equals one quarter
of the IGMP general
interval.
By default, the IGMP startup
query count equals the IGMP
querier's robustness variable.
By default, the IGMP general
query interval is 125 seconds.
By default, the IGMP last member
query interval is 1 second.
By default, the IGMP last member
query count equals the IGMP
querier's robustness variable.
By default, the maximum
response time for IGMP general
queries is 10 seconds.
By default, the IGMP other querier
present timer is calculated by
using the following
[ IGMP general query interval ] ×
[ IGMP robustness variable ] +
[ maximum response time for
IGMP general queries ] / 2.
Remarks
N/A
N/A
By default, fast-leave processing
is disabled.
query
formula: