Configuring IP Multicast Traffic Reduction
December 2005 © Foundry Networks, Inc. 18 - 17
The following example shows IGMP flows information listed by the show ip multicast command, followed by
removal of the information by the clear ip multicast all command.
To clear the learned IGMP flows for a specific IP multicast group, enter a command such as the following:
FastIron SuperX Switch# clear ip multicast group 239.255.162.5
The following example shows how to clear the IGMP flows for a specific group and retain reports for other groups.
Syntax: clear ip multicast all | group <group-id>
The all parameter clears the learned flows for all groups.
The group <group-id> parameter clears the flows for the specified group but does not clear the flows for other
groups.
FastIron SuperX Switch# show ip multicast
IP multicast is enabled - Active
VLAN ID 1
Active 192.168.2.30 Router Ports 4/13
Multicast Group: 239.255.162.5, Port: 4/4 4/13
Multicast Group: 239.255.162.4, Port: 4/10 4/13
FESX424 Router# clear ip multicast all
FESX424 Router# show ip multicast
IP multicast is enabled - Active
VLAN ID 1
Active 192.168.2.30 Router Ports 4/13
FastIron SuperX Switch# show ip multicast
IP multicast is enabled - Active
VLAN ID 1
Active 192.168.2.30 Router Ports 4/13
Multicast Group: 239.255.162.5, Port: 4/4 4/13
Multicast Group: 239.255.162.4, Port: 4/10 4/13
FESX424 Router# clear ip multicast group 239.255.162.5
FESX424 Router# show ip multicast
IP multicast is enabled - Active
VLAN ID 1
Active 192.168.2.30 Router Ports 4/13
Multicast Group: 239.255.162.4, Port: 4/10 4/13