JetStream  52-Port Gigabit Stackable L3 Managed Switch  CLI Guide 
 
Chapter 31  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. 
31.1  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 
Example 
Enable IGMP Snooping function: 
T3700G-52TQ(config)#ip igmp snooping 
31.2  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 
Command Mode 
Interface Configuration Mode (interface fastEthernet / interface range 
fastEthernet / interface gigabitEthernet / interface range gigabitEthernet/ 
interface ten-gigabitEthernet / interface range ten-gigabitEthernet) 
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