Configuring Parameters For Mld Queries And Responses - HP 6125G Configuration Manual

Step
1. Enter system view.
2. Enter VLAN view.
3. Enable the MLD snooping
querier.

Configuring parameters for MLD queries and responses

CAUTION:
In the configuration, make sure that the interval for sending MLD general queries is greater than the
maximum response delay for MLD general queries. Otherwise, IPv6 multicast members might be deleted
by mistake.
You can modify the MLD general query interval based on the actual condition of the network.
A multicast listening host starts a timer for each IPv6 multicast group that it has joined when it receives an
MLD query (general query or multicast-address-specific query). This timer is initialized to a random value
in the range of 0 to the maximum response delay advertised in the MLD query message. When the timer
value decreases to 0, the host sends an MLD report to the IPv6 multicast group.
To speed up the response of hosts to MLD queries and avoid simultaneous timer expirations causing MLD
report traffic bursts, you must properly set the maximum response delay.
The maximum response delay for MLD general queries is set by the max-response-time command.
•
• The maximum response delay for MLD multicast-address-specific queries equals the MLD
last-listener query interval.
Configuring MLD queries and responses globally
Step
1. Enter system view.
2. Enter MLD-snooping view.
3. Set the maximum response
delay for MLD general
queries.
4. Set the MLD last-member
query interval.
Configuring the parameters for MLD queries and responses in a VLAN
Step
1. Enter system view.
2. Enter VLAN view.
3. Set the MLD query interval.
Command
system-view
vlan vlan-id
mld-snooping querier
Command
system-view
mld-snooping
max-response-time interval
last-listener-query-interval interval
Command
system-view
vlan vlan-id
mld-snooping query-interval
interval
218
Remarks
N/A
N/A
Disabled by default
Remarks
N/A
N/A
10 seconds by default
1 second by default
Remarks
N/A
N/A
125 seconds by default