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I-D ACTION:draft-ietf-idmr-igmp-mrdisc-06.txt



A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Inter-Domain Multicast Routing Working Group of the IETF.

	Title		: IGMP Multicast Router Discovery
	Author(s)	: S. Biswas, B. Cain, B. Haberman
	Filename	: draft-ietf-idmr-igmp-mrdisc-06.txt
	Pages		: 14
	Date		: 08-May-01
	
Companies have been proposing IGMP snooping schemes for layer-2 
bridging devices.  A method for discovering multicast capable routers 
is necessary for these schemes.  An IGMP query message is inadequate 
for discovering multicast routers as one querier is elected.  In 
order to 'discover' multicast routers, we introduce three new types 
of IGMP messages: Multicast Router Advertisement, Multicast Router 
Solicitation, and Multicast Router Termination.  These messages can 
be used by any device which listens to IGMP to discovery multicast 
routers. Multicast Router Solicitation messages may be used by any 
network device (e.g. layer-2 switch) to solicit discovery messages 
from multicast routers. 
 .

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