Command Reference Guide

IGMP Snooping Configuration Commands
CLI Command Reference
September 2014 Page 422
HP Moonshot Switch Module CLI Command Reference
no set igmp
This command disables IGMP Snooping on the system, an interface, a range of interfaces, or a VLAN.
set igmp interfacemode
This command enables IGMP Snooping on all interfaces. If an interface has IGMP Snooping enabled and you
enable this interface for routing or enlist it as a member of a port-channel (LAG), IGMP Snooping functionality
is disabled on that interface. IGMP Snooping functionality is re-enabled if you disable routing or remove port-
channel (LAG) membership from an interface that has IGMP Snooping enabled.
no set igmp interfacemode
This command disables IGMP Snooping on all interfaces.
set igmp fast-leave
This command enables or disables IGMP Snooping fast-leave admin mode on a selected interface, a range of
interfaces, or a 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.
Format
no set igmp vlan_id
Mode VLAN Config
Format
no set igmp [vlan_id]
Mode • Global Config
•Interface Config
Default disabled
Format
set igmp interfacemode
Mode Global Config
Format
no set igmp interfacemode
Mode Global Config
Default disabled
Format
set igmp fast-leave vlan_id
Mode VLAN Config