[Rmt] I-D ACTION:draft-ietf-rmt-pi-norm-07.txt,.ps,.pdf

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

	Title		: NACK-Oriented Reliable Multicast Protocol (NORM)
	Author(s)	: B. Adamson, C. Bormann, M. Handley, J. Macker
	Filename	: draft-ietf-rmt-pi-norm-07.txt,.ps,.pdf
	Pages		: 77
	Date		: 2003-6-9
	
This document describes the messages and procedures of the Negative-
acknowledgement (NACK) Oriented Reliable Multicast (NORM) protocol.
This protocol is designed to provide end-to-end reliable transport of
bulk data objects or streams over generic IP multicast routing and
forwarding services.  NORM uses a selective, negative acknowledgement
mechanism for transport reliability and offers additional protocol
mechanisms to conduct reliable multicast sessions with limited 'a
priori' coordination among senders and receivers.  A congestion
control scheme is specified to allow the NORM protocol fairly share
available network bandwidth with other transport protocols such as
Transmission Control Protocol (TCP).  It is capable of operating with
both reciprocal multicast routing among senders and receivers and with
asymmetric connectivity (possibly a unicast return path) from the
senders to receivers.  The protocol offers a number of features to
allow different types of applications or possibly other higher level
transport protocols to utilize its service in different ways.  The
protocol leverages the use of FEC-based repair and other IETF reliable
multicast transport (RMT) building blocks in its design.

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