Igmp-Snooping Router-Aging-Time - 3Com 8807 Command Reference Manual

578 C 31: IGMP S C C
HAPTER NOOPING ONFIGURATION OMMANDS
Parameter
None
Description
Use the igmp-snooping nonflooding-enable command to enable unknown
multicast data packets not to be broadcasted within a VLAN.
Use the undo igmp-snooping nonflooding-enable command to disable
unknown multicast data packets not to be broadcasted within a VLAN.
Note that if IGMP snooping is not enabled on the VLAN (nor Layer 3 multicast),
unknown multicast packets are broadcasted within the VLAN no matter whether
this function is enabled or not. To make unknown multicast data packets not be
broadcasted within the VLAN, you need to enable igmp-snooping in this VLAN
and enable igmp-snooping nonflooding-enable globally.
By default, unknown multicast data packets are broadcasted within the VLAN.
Example
# Enable multicast packets not to be broadcasted within the VLAN.
<SW8800> system-view
System View: return to User View with Ctrl+Z.
[SW8800] igmp-snooping nonflooding-enable
igmp-snooping Syntax
router-aging-time
igmp-snooping router-aging-time seconds
undo igmp-snooping router-aging-time
View
System view
Parameter
seconds: Router port aging time, ranging from 1 to 1000 measured in seconds; By
default, it is 105.
Description
Use the igmp-snooping router-aging-time command to configure the router
port aging time of IGMP Snooping.
Use the undo igmp-snooping router-aging-time command to restore the
default value.
The port here refers to the Ethernet switch port connected to the multicast router.
The Layer-2 Ethernet switch receives general query packets from the router via this
port. The timer should be set to about 3.5 times of the general query period of the
router.
Related command: igmp-snooping and igmp-snooping max-response-time.