The set protocols igmp-snooping vlan-id fast-leave command is used to enable or disable the fast leave function to allow member ports in a VLAN to quickly leave the multicast group.
set protocols igmp-snooping vlan-id <vlan-id> fast-leave <true | false>
Specifies a VLAN ID. The value is an integer that ranges from 1 to 4094.
fast-leave <true | false>
Enable or disable the fast leave function.
The value is true or false.
The default value is false.
Fast leave of a member port means that the switch will delete the multicast forwarding entry of a multicast group from an interface immediately after the interface receives an IGMP leave message for the group, instead of waiting for the member port to age.
When there are multiple receiver hosts under an interface, this function may interrupt other hosts in the same multicast group in receiving multicast data. So, it is recommended to disable the fast leave function in this scenario.
- Enable the fast leave function to allow member ports in a VLAN to quickly leave the multicast groups.