Network Working Group V. Schryver Request for Comments: 1977 August 1996 Category: Informational PPP BSD 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 for transporting multi-protocol datagrams over point-to-point links. The PPP Compression Control Protocol [2] provides a method to negotiate and utilize compression protocols over PPP encapsulated links. This document describes the use of the Unix Compress compression protocol for compressing PPP encapsulated packets. Table of Contents 1. Introduction .................................... 1 1.1 Licensing ................................. 2 2. BSD Compress Packets ............................ 2 2.1 Packet Format ............................. 5 3. Configuration Option Format ..................... 6 APPENDICES ............................................. 7 A. BSD Compress Algorithm .......................... 7 SECURITY CONSIDERATIONS ................................ 24 REFERENCES ............................................. 24 ACKNOWLEDGEMENTS ....................................... 24 CHAIR'S ADDRESS ........................................ 25 AUTHOR'S ADDRESS ....................................... 25 1. Introduction UNIX compress as embodied in the freely and widely distributed BSD source has the following features: - dynamic table clearing when compression becomes less effective. Schryver Informational