H3C Technologies H3C S10500 Series Switches - Manual (Page 280)

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Configuring MLD snooping port functions
Configuration prerequisites
Before you configure MLD snooping port functions, complete the following tasks:
• Enable MLD snooping in the VLAN
• Configure the corresponding port groups
• Determine the aging time of dynamic router ports
• Determine the aging time of dynamic member ports
• Determine the IPv6 multicast group and IPv6 multicast source addresses
Configuring aging timers for dynamic ports
If the switch receives no MLD general queries or IPv6 PIM hello messages on a dynamic router port, the
switch removes the port from the router port list when the aging timer of the port expires.
If the switch receives no MLD reports for an IPv6 multicast group on a dynamic member port, the switch
removes the port from the outgoing port list of the forwarding table entry for that IPv6 multicast group
when the port aging timer expires.
If IPv6 multicast group memberships change frequently, you can set a relatively small value for the aging
timer of the dynamic member ports.
Configuring aging timers for dynamic ports globally
Follow these steps to configure aging timers for dynamic ports globally:
To do... Use the command... Remarks
Enter system view system-view —
Enter MLD-snooping view mld-snooping —
Set the aging timer for dynamic
router ports
router-aging-time interval
Required
260 seconds by default.
Set the aging timer for dynamic
member ports
host-aging-time interval
Required
260 seconds by default.
Configuring aging timers for dynamic ports in a VLAN
Follow these steps to configure aging timers for dynamic ports in a VLAN:
To do... Use the command... Remarks
Enter system view system-view —
Enter VLAN view vlan vlan-id —
Set the aging timer for dynamic
router ports mld-snooping router-aging-time
interval Required
260 seconds by default.
Set the aging timer for dynamic
member ports mld-snooping host-aging-time
interval Required
260 seconds by default.