Technical Summary
This document is an RMT Protocol Instantiation that completely
specifies data and procedures useful for building a reliable multicast
transport protocol based on negative-acknowledgment (NACK) feedback.
The protocol uses the Forward Error Correction (FEC) techniques and
building blocks specified by the RMT Working Group and fully specifies
a congestion control mechanism that allows safe deployment of the
protocol on networks along with TCP and other compatible transport
protocols. The document builds upon the NACK based reliability
techniques described in another RMT WG document,
draft-ietf-rmt-bb-norm-revised.
draft-ietf-rmt-pi-norm-revised-09 also includes a description of
security considerations and fully describes a baseline approach
for using IPSec mechanisms to provide protocol security. Header
extensions are also defined to allow alternative security mechanisms
to be deployed if needed.
Working Group Summary
There is consensus in the WG to publish this documents.
Document Quality
The document is of high quality and has been subject to extensive
review in its Internet Draft and Experimental RFC forms. The
revised draft represents a small number of changes from the original
Experimental RFC 3940.
A public domain, open source implementation of this NORM protocol
specification is available for use from the U.S. Naval Research
Laboratory. This implementation has been widely used in a number of
applications, including military and commercial systems. The protocol
has successfully operated on a wide variety of network types. The
INRIA organization has an implementation in progress. The JPEG 2000
Digital Cinema group is considering specifying the NORM protocol for
some content distribution purposes.
The content of this document was already reviewed and approved for
publication as experimental RFC 3940. This document contains minor
technical modifications.
Personnel
Lorenzo Vicisano is the Document Shepherd.
Magnus Westerlund is the Responsible Area Director.