Igmp Snooping; Overview; Cli Examples - Dell PowerConnect M6348 Configuration Manual

IGMP Snooping

This section describes the Internet Group Management Protocol (IGMP) Snooping feature. IGMP
Snooping enables the switch to monitor IGMP transactions between hosts and routers. It can help
conserve bandwidth by allowing the switch to forward IP multicast traffic only to connected hosts that
request multicast traffic.

Overview

The IGMP feature:
• Uses Version 3 of IGMP
• Includes snooping, which can be enabled per VLAN

CLI Examples

The following examples show commands to use with the IGMP Snooping feature.
Example #1: Enable IGMP Snooping on an Interface
First, enable IGMP Snooping on the switch:
console(config)#ip igmp snooping
Then, configure IGMP Snooping on an interface:
console(config)#interface ethernet 1/g17
console(config-if-1/g17)#ip igmp snooping?
host-time-out
leave-time-out
mrouter-time-out
<cr>
console(config-if-1/g17)#ip igmp snooping
console(config-if-1/g17)#exit
Example #2: Show IGMP Snooping Information for the Switch
console#show ip igmp snooping
Admin Mode..................................... Enable
Multicast Control Frame Count.................. 0
Interfaces Enabled for IGMP Snooping........... 1/g17
Vlans enabled for IGMP snooping................ None
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Switching Configuration
Configure host time out parameter.
Configure leave time out parameter.
Configure mrouter time out parameter.
Press enter to execute the command.