3Com Switch 7750 Series
Command Reference Guide – Multicast Chapter 1 IGMP Snooping Configuration Commands
1-11
View
System view
Parameter
None
Description
Use the igmp-snooping report-aggregation command to enable suppression on
Layer 2 multicast IGMP report packets. In the IGMP-snooping-enabled VLAN, only one
IGMP report packet is sent to the upstream router port in an interval.
Use the undo igmp-snooping report-aggregation command to disable suppression
on Layer 2 multicast IGMP report packets.
By default, suppression on IGMP report packets is disabled.
Note:
z IGMP snooping must be enabled globally before the suppression on IGMP report
packets is enabled.
z If IGMP snooping is disabled globally, the suppression on IGMP report packets is
disabled simultaneously.
Example
# Enable suppression on Layer 2 multicast IGMP report packets on the switch.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] igmp-snooping enable
[3Com] igmp-snooping report-aggregation
1.1.12 igmp-snooping router-aging-time
Syntax
igmp-snooping router-aging-time seconds
undo igmp-snooping router-aging-time
View
System view
Parameter
seconds: Aging time of the router port, in the range of 1 to 1000 in seconds.