IGMP

CHAPTER 15: IGMP

15.2 Configuring IGMP through the Command Line Interface

15.2.1 Commands

The igmp command enters IGMP configuration mode and enables or disables IGMP on the switch.

igmp

igmp <enable/disable>

The show igmp command displays the IGMP status.

show igmp

The following command sequence illustrates how to enable and query the status of IGMP.

ML1200# igmp

ML1200(igmp)## igmp enable

IGMP is enabled

ML1200(igmp)## show igmp

IGMP State

: Enabled

ImmediateLeave

: Disabled

Querier

: Enabled

Querier Interval

: 125

Querier Response Interval

: 10

Multicasting Unknown Streams

: Enable

ML1200(igmp)## igmp disable

 

IGMP is disabled

 

ML1200(igmp)## show igmp

 

IGMP State

: Disabled

ImmediateLeave

: Disabled

Querier

: Enabled

Querier Interval

: 125

Querier Response Interval

: 10

Multicasting Unknown Streams

: Enable

ML1200(igmp)##

 

The output of the show igmp command provides the following useful information:

IGMP State shows if IGMP is turned on (Enable) or off (Disable).

Immediate Leave provides a mechanism for a particular host that wants to leave a multicast group. It disables the port (where the leave message is received) ability to transmit multicast traffic.

Querier shows where the switch is a querier or a non-querier. In our example, the switch is the querier.

Querier Interval shows the time period in seconds on which the switch sends general host-query messages.

Querier Response Interval specifies maximum amount of time in seconds that can elapse between when the querier sends a host-query message and when it receives a response from a host.

Multicasting Unknown Streams shows if the control of multicast streams is on (Enabled) or off (Disabled).

The show-groupcommand displays the multicast groups.

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MULTILINK ML1200 MANAGED FIELD SWITCH – INSTRUCTION MANUAL

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GE ML1200 instruction manual Configuring Igmp through the Command Line Interface, Igmp enable/disable, Show igmp