GE MULTILINK ML2400 - Manual (Page 252)

15–6 MULTILINK ML2400 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL
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
The show igmp command displays the IGMP status.
show igmp
The following command sequence illustrates how to enable and query the status of IGMP.
ML2400# igmp
ML2400(igmp)## igmp enable
IGMP is enabled
ML2400(igmp)## show igmp
IGMP State : Enabled
ImmediateLeave : Disabled
Querier : Enabled
Querier Interval : 125
Querier Response Interval : 10
Multicasting Unknown Streams : Enable
ML2400(igmp)## igmp disable
IGMP is disabled
ML2400(igmp)## show igmp
IGMP State : Disabled
ImmediateLeave : Disabled
Querier : Enabled
Querier Interval : 125
Querier Response Interval : 10
Multicasting Unknown Streams : Enable
ML2400(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-group command displays the multicast groups.