Network News Transfer Protocol (NNTP) Extension for Compression
draft-murchison-nntp-compress-05

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Last updated 2016-10-10 (latest revision 2016-06-23)
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Independent Submission                                      K. Murchison
Internet-Draft                                Carnegie Mellon University
Intended status: Standards Track                                 J. Elie
Expires: December 25, 2016                                 June 23, 2016

    Network News Transfer Protocol (NNTP) Extension for Compression
                    draft-murchison-nntp-compress-05

Abstract

   This document defines an extension to the Network News Transport
   Protocol (NNTP) that allows a connection to be effectively and
   efficiently compressed between an NNTP client and server.

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   Copyright (c) 2016 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Murchison & Elie        Expires December 25, 2016               [Page 1]
Internet-Draft       NNTP Extension for Compression            June 2016

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  About TLS-level Compression . . . . . . . . . . . . . . .   3
     1.2.  Conventions Used in This Document . . . . . . . . . . . .   4
     1.3.  Authors' Note . . . . . . . . . . . . . . . . . . . . . .   4
   2.  The COMPRESS Extension  . . . . . . . . . . . . . . . . . . .   4
     2.1.  Advertising the COMPRESS Extension  . . . . . . . . . . .   4
     2.2.  COMPRESS Command  . . . . . . . . . . . . . . . . . . . .   5
       2.2.1.  Usage . . . . . . . . . . . . . . . . . . . . . . . .   5
       2.2.2.  Description . . . . . . . . . . . . . . . . . . . . .   6
       2.2.3.  Examples  . . . . . . . . . . . . . . . . . . . . . .   7
   3.  Compression Efficiency  . . . . . . . . . . . . . . . . . . .  10
     3.1.  DEFLATE Specificities . . . . . . . . . . . . . . . . . .  12
   4.  Augmented BNF Syntax for the COMPRESS Extension . . . . . . .  12
     4.1.  Commands  . . . . . . . . . . . . . . . . . . . . . . . .  13
     4.2.  Capability Entries  . . . . . . . . . . . . . . . . . . .  13
     4.3.  General Non-terminals . . . . . . . . . . . . . . . . . .  13
   5.  Summary of Response Codes . . . . . . . . . . . . . . . . . .  13
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
     7.1.  NNTP Compression Algorithm Registry . . . . . . . . . . .  14
       7.1.1.  Algorithm Name Registration Procedure . . . . . . . .  15
       7.1.2.  Comments on Algorithm Registrations . . . . . . . . .  16
       7.1.3.  Change Control  . . . . . . . . . . . . . . . . . . .  16
     7.2.  Registration of the DEFLATE Compression Algorithm . . . .  17
     7.3.  Registration of the NNTP COMPRESS Extension . . . . . . .  17
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  18
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  18
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  19
   Appendix A.  Acknowledgements . . . . . . . . . . . . . . . . . .  21
   Appendix B.  Document History (to be removed by RFC Editor before
                publication) . . . . . . . . . . . . . . . . . . . .  21
     B.1.  Changes since -04 . . . . . . . . . . . . . . . . . . . .  21
     B.2.  Changes since -03 . . . . . . . . . . . . . . . . . . . .  21
     B.3.  Changes since -02 . . . . . . . . . . . . . . . . . . . .  21
     B.4.  Changes since -01 . . . . . . . . . . . . . . . . . . . .  22
     B.5.  Changes since -00 . . . . . . . . . . . . . . . . . . . .  23
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  23

1.  Introduction

   The goal of COMPRESS is to reduce the bandwidth usage of NNTP.

   Compared to PPP compression [RFC1962] and modem-based compression
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