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IP Payload Compression Using ITU-T V.44 Packet Method (RFC3051)

IP.com Disclosure Number: IPCOM000005245D
Original Publication Date: 2001-Jan-01
Included in the Prior Art Database: 2001-Aug-20
Document File: 9 page(s) / 16K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Heath: AUTHOR [+2]

Abstract

This document describes a compression method based on the data compression algorithm described in International Telecommunication Union (ITU-T) Recommendation V.44. Recommendation V.44 is a modem standard but Annex B, Clause B.1, of the recommendation describes the implementation of V.44 in packet networks (e.g., V.44 Packet Method). This document defines the application of V.44 Packet Method to the Internet Protocol (IP) Payload Compression Protocol (RFC 2393). RFC 2393 defines a method for applying lossless compression to the payload portion of IP datagrams.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 21% of the total text.

Network Working Group J. Heath Request for Comments: 3051 J. Border Category: Informational Hughes Network Systems

January 2001

IP Payload Compression Using ITU-T V.44 Packet Method

Status of this Memo

This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (2001). All Rights Reserved.

Abstract

This document describes a compression method based on the data compression algorithm described in International Telecommunication Union (ITU-T) Recommendation V.44. Recommendation V.44 is a modem standard but Annex B, Clause B.1, of the recommendation describes the implementation of V.44 in packet networks (e.g., V.44 Packet Method). This document defines the application of V.44 Packet Method to the Internet Protocol (IP) Payload Compression Protocol (RFC 2393). RFC 2393 defines a method for applying lossless compression to the payload portion of IP datagrams.

V.44 Packet Method is based upon the LZJH data compression algorithm. Throughout the remainder of this document the terms V.44 Packet Method and LZJH are synonymous.

Heath Border Informational [Page 1]

RFC 3051 IP Payload Compression Using ITU-T V.44 January 2001

Table of Contents

1. Introduction...................................................2 1.1 General....................................................2 1.2 Background of LZJH Data Compression........................2 1.3 Intellectual Property Rights...............................3

1.4 Specification of Requirements..............................4 2. Compression Process............................................4 2.1 Encoder Dictionary.........................................4 2.2 Encoder Output.............................................4

2.3 Padding....................................................4 3. Decompression Process..........................................5 3.1 Compressed Datagram........................................5

3.2 Original Uncompressed Datagram.............................5 4. IPComp Association (IPCA) Parameters...........................5 4.1 Transform ID...............................................5 4.2 Security Association Attributes............................5 4.3 Manual configuration.......................................5 4.4 Minimum packet size threshold..............................6

4.5 Compressibility test.......................................6 5. Security Considerations........................................6 6. IANA Considerations............................................6 7. Acknowledgements...............................................6 8. References.....................................................6

9. Authors' Addresses.............................................7 10. Full Copyright Statement.......................................8

1. Introduction

1.1 General

This document specifies the application of LZJH data compression, a lossless data compression algorithm, to ...