XG700 User's Guide
49/266
All Rights Reserved, Copyright (C) PFU LIMITED 2005-2006
4.9.2 Removing Group Members
The group members registered by IGMP snooping are removed under the following status.
If after receiving an IGMP Report message for group registration, the group member interval expires before the XG700
receives another IGMP Report message, it removes that group member. The default setting for the group member
interval is 260 seconds.
If an IGMP Leave message is sent from a host, the multicast router sends out an IGMP Specific Query (GSQ)
message to determine that the host has left the group.
If after receiving the IGMP Leave message, the last member interval expires before the XG700 receives another IGMP
Report message, it removes that group member. The default setting for the last member interval is 2 seconds.