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To do...
Configure the maximum response
delay for MLD general query
messages
Configure the MLD last listener
query interval
Configure the MLD other querier
present interval
CAUTION:
To avoid frequent MLD querier changes, set the other querier present interval greater than the MLD
query interval.
To avoid incorrect multicast group member removals, set the MLD query interval greater than the
maximum response delay for MLD general queries.
Configuring MLD fast leave processing
MLD fast leave processing is implemented by MLD snooping. For more information about MLD snooping,
see the chapter "MLD snooping configuration."
Configuring MLD SSM mapping
Because of possible restrictions, some receiver hosts on an SSM network might run MLDv1. To provide
SSM service support for these receiver hosts, you must configure the MLD SSM mapping feature on the
last hop router.
Configuration prerequisites
Before you configure the MLD SSM mapping feature, complete the following tasks:
Configure any IPv6 unicast routing protocol so that all devices in the domain can be interoperable
•
at the network layer
Configure MLD basic functions
•
Enabling MLD SSM mapping
Follow these steps to enable the MLD SSM mapping feature:
To do...
Enter system view
Use the command...
mld max-response-time interval
mld last-listener-query-interval
interval
mld timer other-querier-present
interval
Use the command...
system-view
315
Remarks
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
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Troubleshooting
