Configuring Igmp Snooping Port Functions; Configuration Prerequisites; Configuring Aging Timers For Dynamic Ports - H3C S5120-SI Series Operation Manual

Configuring IGMP Snooping Port Functions

Configuration Prerequisites

Before configuring IGMP snooping port functions, complete the following tasks:
Enable IGMP snooping in the VLAN
Configure the corresponding port groups.
Before configuring IGMP snooping port functions, prepare the following data:
Aging time of dynamic router ports,
Aging time of dynamic member ports, and
Multicast group and multicast source addresses

Configuring Aging Timers for Dynamic Ports

If the switch receives no IGMP general queries or 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 IGMP reports for a multicast group on a dynamic member port, the switch
removes the port from the outgoing port list of the forwarding table entry for that multicast group when
the aging timer of the port for that group expires.
If multicast group memberships change frequently, you can set a relatively small value for the dynamic
member port aging timer, and vice versa.
Configuring aging timers for dynamic ports globally
Follow these steps to configure aging timers for dynamic ports globally:
To do...
Enter system view
Enter IGMP snooping view
Configure dynamic router port
aging time
Configure dynamic member
port aging time
Configuring aging timers for dynamic ports in a VLAN
Follow these steps to configure aging timers for dynamic ports in a VLAN:
To do...
Enter system view
Enter VLAN view
Configure dynamic router port
aging time
Configure dynamic member
port aging time
Use the command...
system-view
igmp-snooping
router-aging-time interval
host-aging-time interval
Use the command...
system-view
vlan vlan-id
igmp-snooping
router-aging-time interval
igmp-snooping
host-aging-time interval
2-9
Remarks
—
—
Optional
105 seconds by default
Optional
260 seconds by default
Remarks
—
—
Optional
105 seconds by default
Optional
260 seconds by default