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FL SWITCH GHS CLI
2-68
PHOENIX CONTACT
8039_en_01
set igmp fast-leave
This command enables or disables IGMP Snooping fast-leave admin mode on a selected
interface or VLAN. 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.
You should enable fast-leave admin mode only on VLANs where only one host is connected
to each layer 2 LAN port. This prevents the inadvertent 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.
no set igmp fast-leave
This command disables IGMP Snooping fast-leave admin mode on a selected interface.
Default
disabled
Format
set igmp fast-leave
Mode
Interface Config
Format
set igmp fast-leave
<vlan_id>
Mode
VLAN Config
Format
no set igmp fast-leave
Mode
Interface Config
Format
no set igmp fast-leave
<vlan_id>
Mode
VLAN Config
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