30
CONFIDENTIAL
26-Jan-04
© 2002 Procket Networks, Inc. All rights reserved.
IGMP Protocol Flow - Leave a Group
•Hosts that support IGMP v2 send leave messages to all routers group indicating group they’re leaving.
•Router follows up with 2 group-specific queries messages
•IGMP v1 hosts leave by not responding to queries (260 sec timeout)
I don’t want
230.0.0.1 anymore
224.0.0.2
<230.0.0.1>
230.0.0.1 group
I want
to leave!
Anyone still
want this group?
Left Arrow: 230.0.0.1
230.0.0.1
Left Arrow: 230.0.0.1
230.0.0.1
1 sec (rxmt timer)