H3C Technologies H3C S12500-X Series Switches - Manual (Page 123)

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Configuring parameters for MLD queries and responses globally
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter MLD-snooping view. mld-snooping N/A
3. Set the maximum response
delay for MLD general
queries. max-response-time interval The default setting is 10 seconds.
4. Set the MLD last-listener query
interval.
last-listener-query-interval interval The default setting is 1 second.
Configuring parameters for MLD queries and responses in a VLAN
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter VLAN view. vlan vlan-id N/A
3. Set the maximum response
delay for MLD general queries
in the VLAN.
mld-snooping max-response-time
interval
The default setting is 10 seconds.
4. Set the MLD last-listener query
interval in the VLAN.
mld-snooping
last-listener-query-interval interval
The default setting is 1 second.
Configuring MLD snooping port functions
Before you configure MLD snooping port functions, complete the following tasks:
• Enable MLD snooping for the VLAN.
• Determine the aging timer for dynamic router ports.
• Determine the aging timer for dynamic member ports.
• Determine the addresses of the IPv6 multicast group and IPv6 multicast source.
Setting aging timers for dynamic ports
When you set aging timers for dynamic ports, follow these guidelines:
• If the memberships of IPv6 multicast groups frequently change, set a relatively small value for the
aging timer of the dynamic member ports. If the memberships of IPv6 multicast groups rarely
change, you can set a relatively large value.
• If a dynamic router port receives an IPv6 PIMv2 hello message, the aging timer for the port is the
one in the hello message rather than the one set in the mld-snooping router-aging-time command
on the local device.
• You can set the aging timers for dynamic ports either for the current VLAN in VLAN view or globally
for all VLANs in MLD-snooping view. If configurations are made in both VLAN view and
MLD-snooping view, the configuration made in VLAN view takes priority.