Cisco WS-C3550-12G Software Configuration Manual page 327

Chapter 11 Configuring IGMP Snooping and MVR
This is an example of output from the show ip igmp snooping privileged EXEC command for a specific
VLAN interface:
Switch# show ip igmp snooping vlan 1
vlan 1
----------
IGMP snooping is globally enabled
IGMP snooping is disabled on this Vlan
IGMP snooping immediate-leave is disabled on this Vlan
IGMP snooping mrouter learn mode is pim-dvmrp on this Vlan
This is an example of output from the show ip igmp snooping mrouter privileged EXEC command:
Switch# show ip igmp snooping mrouter
vlan
-----+----------------------------------------
1
2
This is an example of output from the show ip igmp snooping mrouter privileged EXEC command for
VLAN 1:
Switch# show ip igmp snooping mrouter vlan 1
Vlan
----
1
1
This example shows how to display the Layer 2 multicast entries for VLAN 1:
Switch# show mac-address-table multicast vlan 1
vlan
-----+---------------+--------+---------+---+--------------------------------
1
1
1
1
This is an example of output from the show mac-address-table multicast count privileged EXEC
command for the switch:
Switch
Multicast MAC Entries for all vlans:
This is an example of output from the show mac-address-table multicast count privileged EXEC
command for a VLAN:
Switch# show mac-address-table multicast vlan 1 count
Multicast MAC Entries for vlan 1:
This example shows how to display only the user-configured multicast entries for VLAN 1:
Switch# show mac-address-table multicast vlan 1 user
vlan
-----+---------------+--------+---------+---+--------------------------------
1
1
This example shows how to display the total number of entries learned by IGMP snooping for VLAN 1:
Switch# show mac-address-table multicast vlan 1 igmp-snooping count
Number of user programmed entries:
78-11194-03
ports
Gi0/1,Gi0/2,Router
Gi0/3,Gi0/4
ports
-----
Gi0/1(dynamic)
Gi0/2(dynamic)
mac address type
0100.5e02.0203 user
0100.5e00.0127 igmp
0100.5e00.0128 user
0100.5e00.0001 igmp
#
show mac-address-table multicast count
mac address type
0100.5e02.0203 user
0100.5e00.0128 user
ports
Gi0/1,Gi0/2
Gi0/1,Gi0/2
Gi0/1,Gi0/2
Gi0/1,Gi0/2
10
ports
Gi0/1,Gi0/2
Gi0/1,Gi0/2
2
Catalyst 3550 Multilayer Switch Software Configuration Guide
Displaying IGMP Snooping Information
11-11