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I-D ACTION:draft-crocker-mast-proposal-01.txt

A New Internet-Draft is available from the on-line Internet-Drafts directories.

                          EXTENDED PROPOSAL
	Author(s)	: D. Crocker
	Filename	: draft-crocker-mast-proposal-01.txt
	Pages		: 0
	Date		: 2003-9-29
Classic Internet transport protocols use a single source IP
address and a single destination IP address, as part of the
identification for an individual data flow.  TCP includes these
in its definition of a connection and its calculation of the
header checksum.  Hence the transport service is tied to a
particular IP address pair. This is problematic for multihomed
hosts and for mobile hosts. They cannot use more than one, for
any single transport association (context).  Multiple Address
Service for Transport (MAST) defines a mechanism that supports
association of multiple IP addresses with any transport
association.  It requires no change to the Internet
infrastructure, no change to IP modules or transport modules in
the end-systems, and no new administrative effort. Instead, it
defines a layer between classic IP and transport that operates
only in the end systems and affects only participating hosts.
Additional functionality is obtained by use of a DNS and
'presence' rendezvous service.

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