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IP Payload Compression Using DEFLATE (RFC2394)

IP.com Disclosure Number: IPCOM000002967D
Original Publication Date: 1998-Dec-01
Included in the Prior Art Database: 2019-Feb-15
Document File: 6 page(s) / 8K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Pereira: AUTHOR

Related Documents

10.17487/RFC2394: DOI

Abstract

This document describes a compression method based on the DEFLATE compression algorithm. This document defines the application of the DEFLATE algorithm to the IP Payload Compression Protocol. This memo provides information for the Internet community. It does not specify an Internet standard of any kind.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 31% of the total text.

Network Working Group R. Pereira Request for Comments: 2394 TimeStep Corporation Category: Informational December 1998

IP Payload Compression Using DEFLATE

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 (1998). All Rights Reserved.

Abstract

This document describes a compression method based on the DEFLATE compression algorithm. This document defines the application of the DEFLATE algorithm to the IP Payload Compression Protocol.

Table of Contents

1. Introduction...................................................2 1.1 The DEFLATE Compression Algorithm...........................2 1.2 Licensing...................................................2 1.3 Specification of Requirements...............................3 2. DEFLATE Algorithm Implementation...............................3 2.1 Compression.................................................3 2.2 Decompression...............................................4 3. Thresholds.....................................................4 4. IPSec Transform Identifier.....................................4 5. Security Considerations........................................4 6. References.....................................................5 7. Acknowledgments................................................5 8. Editor’s Address...............................................5 9. Full Copyright Statement.......................................6

Pereira Informational [Page 1]

RFC 2394 IP Payload Compression Using DEFLATE December 1998

1. Introduction

The IP Payload Compression Protocol allows the compression of IP datagrams by supporting different compression algorithms. This document describes how to integrate the DEFLATE compression algorithm [Deutsch96] into IPCOMP [IPCOMP].

This document SHOULD be read in conjunction with [IPCOMP] and MUST be taken in its context.

1.1 The DEFLATE Compression Algorithm

The ’deflate’ compression format [Deutsch96], as used by the PKZIP and gzip compressors and as embodied in the freely and widely distributed zlib [Gailly95] library source code, has the following features:

o an apparently unencumbered encoding and compression algorithm, with an open and publicly-available specification.

o low-overhead escape mechanism for incompressible data. The PPP Deflate specification offers options to reduce that overhead further.

o heavily used for many years in networks, on modem and other point- to-point links to transfer files for personal computers and workstations.

o easily achieves 2:1 compression on the Calgary corpus [Corpus90] using less than 64KBytes of memory on both sender and receive.

1.2 Licensing

The zlib source is widely and freely available, subject to the following copyright:

(C) 1995 Jean-Loup Gailly and Mark Adler

This software is provided ’as-is’, without any express or implied warranty. In no event...

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