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Configuring aging timers for dynamic ports
If a switch receives no MLD general queries or IPv6 PIM hello messages on a dynamic router port when
the aging timer of the port expires, the switch removes the port from the router port list.
If the switch receives no MLD reports for an IPv6 multicast group on a dynamic member port when the
aging timer of the port expires, the switch removes the port from the forwarding entry for the IPv6
multicast group.
If the memberships of IPv6 multicast groups change frequently, you can set a relatively small value for the
aging timer of the dynamic member ports. If the memberships of IPv6 multicast groups change rarely, you
can set a relatively large value.
Setting the global aging timers for dynamic ports
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter MLD-snooping view.
mld-snooping
N/A
3.
Set the global aging timer for
dynamic router ports.
router-aging-time
interval
260 seconds by default
4.
Set the global aging timer for
dynamic member ports.
host-aging-time
interval
260 seconds by default
Setting the aging timers for the dynamic ports 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 aging timer for the
dynamic router ports.
mld-snooping router-aging-time
interval
260 seconds by default
4.
Set the aging timer for the
dynamic member ports.
mld-snooping host-aging-time
interval
260 seconds by default
Configuring static ports
If all hosts attached to a port are interested in the IPv6 multicast data addressed to a particular IPv6
multicast group, configure the port as a static member port for that IPv6 multicast group.
You can configure a port as a static router port, through which the switch can forward all IPv6 multicast
data that it received.
A static member port does not respond to queries from the MLD querier; when you configure a port as a
static member port or cancel this configuration on the port, the port does not send an unsolicited MLD
report or an MLD done message.
Static member ports and static router ports never age out. To remove such a port, you use the
corresponding
undo
command.
To configure static ports:
