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Article #13181Re: SLIP via Telebit on 3/50 + 4.0.3
From: weiser.pa
Date: Sat, 02 Dec 1989 20:39
Date: Sat, 02 Dec 1989 20:39
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1198 bytes
My experience with telebits and other "smart" modems that try to packetize internally and do compression is that they do not do well at all with SLIP. I suspect the reason is that TCP is also packetizing and estimating round-trip-times (RTT's), and the modems generally are tuned for terminal interactive mode, and so TCP gets very confused. I have heard of a Telebit SLIP mode, but have no definite informatin. Also, older TCP/IP implementations (prior to 4.0.1 for suns) did not have Jacobson's and Karel's TCP RTT estimation improvements, which make a huge difference on any but the most trivial uses of slip. (E.g. they make a huge difference when rcping two files at once, or typing during an rcp). -mark
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!cs.utexas.edu!rice!sun-spots-request From: weiser.pa@xerox.com Newsgroups: comp.sys.sun Subject: Re: SLIP via Telebit on 3/50 + 4.0.3 Keywords: Miscellaneous Message-ID: <3805@brazos.Rice.edu> Date: 2 Dec 89 20:39:38 GMT Sender: root@rice.edu Organization: Sun-Spots Lines: 12 Approved: Sun-Spots@rice.edu X-Refs: Original: v8n204 X-Sun-Spots-Digest: Volume 8, Issue 218, message 2 of 15