297 
Chapter 37  IGMP Snooping Commands 
IGMP Snooping (Internet Group Management Protocol Snooping) is a multicast control 
mechanism running on Layer 2 switch. It can effectively prevent multicast groups being 
broadcasted in the network. 
37.1 ip igmp snooping(global)   
Description 
The ip igmp snooping command is used to configure IGMP Snooping globally. 
To disable the IGMP Snooping function, please use no ip igmp snooping 
command. 
Syntax 
ip igmp snooping 
no ip igmp snooping 
Command Mode 
Global Configuration Mode 
Privilege Requirement 
Only Admin, Operator and Power User level users have access to these 
commands. 
Example 
Enable IGMP Snooping function: 
T2600G-28TS(config)# ip igmp snooping 
37.2 ip igmp snooping(interface)   
Description 
The  ip  igmp snooping command is used to enable the IGMP Snooping 
function for the desired port. To disable the IGMP Snooping function, please use 
no ip igmp snooping command. 
Syntax 
ip igmp snooping 
no ip igmp snooping