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57-1
Chapter 57: Multicast Filtering Commands
This switch uses IGMP (Internet Group Management Protocol) to query for any
attached hosts that want to receive a specific multicast service. It identifies the ports
containing hosts requesting a service and sends data out to those ports only. It then
propagates the service request up to any neighboring multicast switch/router to
ensure that it will continue to receive the multicast service.
IGMP Snooping Commands
This section describes commands used to configure IGMP snooping on the switch.
ip igmp snooping
This command enables IGMP snooping on this switch. Use the no form to disable it.
Syntax
[no] ip igmp snooping
Default Setting
Enabled
Command Mode
Global Configuration
Example
The following example enables IGMP snooping.
Table 57-1 Multicast Filtering Commands
Command Groups Function Page
IGMP Snooping Configures multicast groups via IGMP snooping or static assignment,
sets the IGMP version, displays current snooping and query settings,
and displays the multicast service and group members
57-1
IGMP Query Configures IGMP query parameters for multicast filtering 57-4
Static Multicast Routing Configures static multicast router ports 57-8
Table 57-2 IGMP Snooping Commands
Command Function Mode Page
ip igmp snooping Enables IGMP snooping GC 57-1
ip igmp snooping vlan static Adds an interface as a member of a multicast group GC 57-2
ip igmp snooping version Configures the IGMP version for snooping GC 57-2
show ip igmp snooping Shows the IGMP snooping and query configuration PE 57-3
show mac-address-table
multicast
Shows the IGMP snooping MAC multicast list PE 57-3
Console(config)#ip igmp snooping
Console(config)#