A new Request for Comments is now available in online RFC libraries.
RFC 5740
Title: NACK-Oriented Reliable Multicast (NORM) Transport
Protocol
Author: B. Adamson, C. Bormann,
M. Handley, J. Macker
Status: Standards Track
Date: November 2009
Mailbox: adamson@itd.nrl.navy.mil,
cabo@tzi.org,
M.Handley@cs.ucl.ac.uk,
macker@itd.nrl.navy.mil
Pages: 96
Characters: 268831
Obsoletes: RFC3940
I-D Tag: draft-ietf-rmt-pi-norm-revised-14.txt
URL: http://www.rfc-editor.org/rfc/rfc5740.txt
This document describes the messages and procedures of the Negative-
ACKnowledgment (NACK) Oriented Reliable Multicast (NORM) protocol.
This protocol can 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 acknowledgment mechanism
for transport reliability and offers additional protocol mechanisms
to allow for operation with minimal a priori coordination among
senders and receivers. A congestion control scheme is specified to
allow the NORM protocol to 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) between the senders and 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 (forward error correction) repair and other IETF
Reliable Multicast Transport (RMT) building blocks in its design.
This document obsoletes RFC 3940. [STANDARDS TRACK]
This document is a product of the Reliable Multicast Transport Working Group of the IETF.
This is now a Proposed Standard Protocol.
STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and suggestions
for improvements. Please refer to the current edition of the Internet
Official Protocol Standards (STD 1) for the standardization state and
status of this protocol. Distribution of this memo is unlimited.
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