RFC 1978 (rfc1978) - Page 1 of 9
PPP Predictor Compression Protocol
Alternative Format: Original Text Document
Network Working Group D. Rand
Request for Comments: 1978 Novell
Category: Informational August 1996
PPP Predictor Compression Protocol
Status of This Memo
This memo provides information for the Internet community. This memo
does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.
Abstract
The Point-to-Point Protocol (PPP) [1] provides a standard method of
encapsulating multiple protocol datagrams over point-to-point links.
The PPP Compression Control Protocol [2] provides a method for
transporting multi-protocol datagrams over PPP encapsulated links.
This document describes the use of the Predictor data compression
algorithm for compressing PPP encapsulated packets.
Table of Contents
1. Introduction ...................................... 1
2. Licensing ......................................... 2
3. Predictor Packets ................................. 2
3.1 Predictor theory ............................ 2
3.2 Encapsulation for Predictor type 1 .......... 7
3.3 Encapsulation for Predictor type 2 .......... 8
4. Configuration Option Format ....................... 9
SECURITY CONSIDERATIONS .................................. 9
REFERENCES ............................................... 9
ACKNOWLEDGEMENTS ......................................... 9
CHAIR'S ADDRESS .......................................... 9
AUTHOR'S ADDRESS ......................................... 9
1. Introduction
Predictor is a high speed compression algorithm, available without
license fees. The compression ratio obtained using predictor is not
as good as other compression algorithms, but it remains one of the
fastest algorithms available.
Note that although care has been taken to ensure that the following
code does not infringe any patents, there is no assurance that it is
Rand Informational