Cisco Catalyst 3550 Command Reference Manual page 427

Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
Related Commands Command
ip igmp snooping
ip igmp snooping vlan mrouter
ip igmp snooping vlan static
show ip igmp snooping
show ip igmp snooping groups
OL-8566-01
Description
Enables IGMP snooping on the switch or on a VLAN.
Adds a multicast router port.
Statically adds a Layer 2 port as a member of a multicast group.
Displays the IGMP snooping configuration of the switch or the
VLAN
Displays IGMP snooping multicast information for the switch or
for the specified parameter.
Catalyst 3550 Multilayer Switch Command Reference
show ip igmp snooping mrouter
2-401