Force10 Networks S2410s Igmp fast-leave interface, Igmp groupmembership-interval interface, Entry

igmp fast-leave (interface)

igmp fast-leave (interface)

Syntax

Default

Mode

Command History

Related Commands

This command enables or disables IGMP Snooping fast-leave admin mode on a selected interface. Enabling fast-leave allows the switch to immediately remove the Layer 2 LAN interface from its forwarding table entry upon receiving an IGMP leave message for that multicast group without first sending out MAC-based general queries to the interface.

Fast-leave admin mode should be enabled only on VLANs where only one host is connected to each Layer 2 LAN port, to prevent the inadverdent dropping of the other hosts that were connected to the same Layer 2 LAN port but were still interested in receiving multicast traffic directed to that group. Also, fast-leave processing is supported only with IGMP v. 2 hosts.

[no] igmp fast-leave

The no version of this command disables IGMP Snooping fast-leave admin mode on a selected interface.

disable

Interface Config; Interface VLAN

Version 2.3	Revised from set igmp fast-leave.
igmp enable (global)		Enables IGMP Snooping on the system.
show igmpsnooping		Displays IGMP Snooping status information.

igmp groupmembership-interval (interface)

	This command sets the IGMP Group Membership Interval time on a particular interface. The
	group membership interval time is the amount of time in seconds that a switch will wait for a
	report from a particular group on a particular interface before deleting the interface from the
	entry.
Syntax	igmp groupmembership-interval 2-3600
	The variable must be greater than the IGMPv3 maximum response time value. The range is 2
	to 3600 seconds.
	The no igmp groupmembership-intervalcommand sets the IGMP v3 group
	membership interval time on the interface to the default value.
Default	260 seconds

SFTOS Command Reference for the S2410, Version 2.4.1.0 237