Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!samsung!uunet!telebit!brian
From: brian@telebit.com (Brian Lloyd)
Newsgroups: comp.dcom.lans
Subject: Re: SLIP/PPP perf. differences
Message-ID: <1991May23.210105.20253@telebit.com>
Date: 23 May 91 21:01:05 GMT
References: <1104@venice.SEDD.TRW.COM> <7611@spdcc.SPDCC.COM> <1991May23.023743.3969@searchtech.com>
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Organization: Telebit Corporation; Sunnyvale, CA, USA
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mra@searchtech.com (Michael Almond) writes:

>In article <7611@spdcc.SPDCC.COM> rbraun@spdcc.COM (Rich Braun) writes:
>>Header compression brings your 41-byte echo packet down to something
>>like 3 bytes, by eliminating redundant information which appears
>>repeatedly in packet headers during the course of a connection.  Each
>>side of the protocol must maintain a table of active connections.

>Why doesn't regular TCP/IP use this?

It costs cpu cycles to do the compresssion and at higher data rates it
does not buy you much in the way of performance (remember that you can
only type so fast so you are limited to the amount of data that a
human can generate).

-- 
Brian Lloyd, WB6RQN                              Telebit Corporation
Network Systems Architect                        1315 Chesapeake Terrace 
brian@napa.telebit.com                           Sunnyvale, CA 94089-1100
voice (408) 745-3103                             FAX (408) 734-3333