Netgear GS110TP GS108Tv2/GS110TP Software Reference Manual - Page 132
IGMP Snooping VLAN Configuration
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GS108T and GS110TP Smart Switch Software Administration Manual IGMP Snooping VLAN Configuration Use the IGMP Snooping VLAN Configuration page to configure IGMP snooping settings for VLANs on the system. To access the IGMP Snooping VLAN Configuration page, click Switching Multicast IGMP Snooping IGMP Snooping VLAN Configuration. Figure 3-32 To configure IGMP snooping settings for VLANs: 1. To enable IGMP snooping on a VLAN, enter the VLAN ID in the appropriate field and configure the IGMP Snooping values: • Fast Leave Admin Mode. Enable or disable the IGMP Snooping Fast Leave Mode for the specified VLAN ID. 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. 3-48 v1.0, April 2010 Configuring Switching Information