3Com MSR 30, MSR 50 manual Igmp robust-count, Igmp send-router-alert, Igmp interface

1354 CHAPTER 88: IGMP CONFIGURATION COMMANDS

igmp robust-count

Syntax	igmp robust-count robust-value
	undo igmp robust-count
View	Interface view
Parameter	robust-value: IGMP querier robustness variable, with an effective range of 2 to 5.
	The IGMP robustness variable determines the number of general queries the IGMP
	querier sends on startup and the number of IGMP group-specific queries the IGMP
	querier sends upon receiving an IGMP leave message.
Description	Use the igmp robust-countcommand to configure the IGMP robustness
	variable on the current interface.
	Use the undo igmp robust-countcommand to restore the system default.
	By default, the IGMP querier robustness variable is 2.
Related command:	robust-count (IGMP view), igmp timer query, igmp
	last-member-query-interval,igmp timer other-querier-present,display
	igmp interface.
Example	# Set the IGMP querier robustness variable to 3 on Ethernet 1/0.
	<Sysname> system-view
	[Sysname] interface ethernet 1/0
	[Sysname-Ethernet1/0] igmp robust-count 3

igmp send-router-alert

Syntax	igmp send-router-alert
	undo igmp send-router-alert
View	Interface view
Parameter	None
Description	Use the igmp send-router-alertcommand on the current interface to enable
	insertion of the Router-Alert option in IGMP messages to be sent.
	Use the undo igmp send-router-alertcommand on the current interface to
	disable insertion of the Router-Alert option in IGMP messages to be sent.
	By default, IGMP messages are sent with the Router-Alert option.

Related command: send-router-alert (IGMP view), igmp require-router-alert.