Configuring Aging Timers For Dynamic Ports; Configuring Static Ports - 3Com 4500G Family Configuration Manual

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

Configuring Static Ports

If all the hosts attached to a port are interested in the multicast data addressed to a particular multicast
group or the multicast data that a particular multicast source sends to a particular group, you can
configure static (*, G) or (S, G) joining on that port, namely configure the port as a group-specific or
source-and-group-specific static member port.
You can configure a port of a switch to be a static router port, through which the switch can forward all
the multicast traffic it received.
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
1-8
Remarks
—
—
Optional
105 seconds by default
Optional
260 seconds by default
Remarks
—
—
Optional
105 seconds by default
Optional
260 seconds by default