COMMAND LINE INTERFACE

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.

Note that IGMP query can be enabled globally at Layer 2, or enabled for specific VLAN interfaces at Layer 3. (Layer 2 query is disabled if Layer 3 query is enabled.)

Command Groups

Function

Page

IGMP Snooping

Configures multicast groups via IGMP snooping or

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static assignment, sets the IGMP version, displays

 

 

current snooping and query settings, and displays

 

 

the multicast service and group members

 

 

 

 

IGMP Query

Configures IGMP query parameters for multicast

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(Layer 2)

filtering at Layer 2

 

 

 

 

IGMP (Layer 3)

Configures the IGMP protocol used with multicast

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routing

 

 

 

 

IGMP Snooping Commands

Command

Function

Mode

Page

ip igmp snooping

Enables IGMP snooping

GC

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ip igmp snooping

Adds an interface as a member of a

GC

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vlan static

multicast group

 

 

 

 

 

 

ip igmp snooping

Configures the IGMP version for snooping

GC

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version

 

 

 

 

 

 

 

show ip igmp

Shows the IGMP snooping and query

PE

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snooping

configuration

 

 

 

 

 

 

show

Shows the IGMP snooping MAC multicast

PE

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mac-address-table

list

 

 

multicast

 

 

 

 

 

 

 

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SMC Networks SMC6724L3 manual Multicast Filtering Commands, Igmp Snooping Commands