I-D ACTION:draft-wijnands-mt-discovery-00.txt

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	Title		: MT Tunnel Discovery and RPF check
	Author(s)	: G. Nalawade
	Filename	: draft-wijnands-mt-discovery-00.txt
	Pages		: 4
	Date		: 2004-2-10
	
Multicast Tunnels  are  built  between  Provider  Edge  (PE) routers
   to  allow multicast communication between different site's of a VPN.
   The MT tunnel has a destination  MDT  group address  that  is unique
   to the VPN. All routers that act as PE's and are configured for a
   specific VPN join the VPN  MDT multicast  group  in the backbone of
   the provider network to be able to receive each others packets. Each
   router is  also a  sender  to  the  MDT group. How the forwarding of
   the MDT packets is achieved is depending on the PIM mode of the  MDT
   group.  This can be either PIM-Bidir, PIM-SM or PIM SSM. The proposal
   in this document is related specifically to PIM SSM mode.

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