Cisco Catalyst 2950 Command Reference Manual page 180

ip igmp snooping report-suppression
Related Commands Command
ip igmp snooping
show ip igmp snooping
Catalyst 2950 and Catalyst 2955 Switch Command Reference
2-150
Chapter 2
Description
Globally enables IGMP snooping. IGMP snooping must be globally
enabled in order to be enabled on a VLAN.
Displays the IGMP snooping configuration of the switch or the
VLAN.
Catalyst 2950 and 2955 Cisco IOS Commands
OL-10102-01