<sec> - Max time (Range: 1 – 3599).

no - This command sets the IGMP Maximum Response time on the system to 10 seconds.

Default Setting

10seconds

Command Mode

Global Config, Interface Config.

ip igmp snooping immediate-leave

This command enables or disables IGMP Snooping fast-leave admin mode on a selected interface or on all interfaces. Enabling fastleave 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(s).

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 version 2 hosts.

Syntax

ip igmp snooping immediate-leave no ip igmp snooping immediate-leave

no - This command disables IGMP Snooping fast-leave admin mode.

Default Setting

Disabled

Command Mode

Global Config, Interface Config.

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Fortinet MR1 manual Ip igmp snooping immediate-leave