3Com Switch 7750 Series
Command Reference Guide – Multicast Chapter 1 IGMP Snooping Configuration Commands
1-12
Description
Use the igmp-snooping router-aging-time command to configure the aging time of
the router port.
Use the undo igmp-snooping router-aging-time command to restore the default
aging time.
By default, the aging time of the router port is 105 seconds.
The router port here refers to the port connecting the Layer 2 switch to the router. The
Layer 2 switch receives IGMP general query messages from the router through this
port. The aging time of the router port should be a value about 2.5 times of the general
query interval.
Related command: igmp-snooping max-response-time, igmp-snooping.
Example
# Set the aging time of the router port to 500 seconds.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] igmp-snooping router-aging-time 500
1.1.13 multicast-vlan enable Syntax
multicast-vlan enable
undo multicast-vlan enable
View
VLAN view
Parameter
None
Description
Use the multicast-vlan enable command to configure the current VLAN as a multicast
VLAN.
Use the undo multicast-vlan enable command to disable the current VLAN from
being a multicast VLAN.
By default, the multicast VLAN feature is disabled.