Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!husc6!necntc!ames!sdcsvax!ucbvax!DECWRL.DEC.COM!kent From: kent@DECWRL.DEC.COM Newsgroups: comp.protocols.tcp-ip Subject: Re: supdup protocol Message-ID: <8710121554.AA07611@armagnac.DEC.COM> Date: Mon, 12-Oct-87 12:02:18 EDT Article-I.D.: armagnac.8710121554.AA07611 Posted: Mon Oct 12 12:02:18 1987 Date-Received: Tue, 13-Oct-87 06:07:57 EDT References: <8710100357.AA04652@drizzle.uoregon.edu> Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: "Christopher A. Kent" Organization: The ARPA Internet Lines: 14 Some work was done a number of years ago (I can't find a reference, but it was at Arizona) to investigate how to use a micro to do editing across a 1200 baud link. They had fairly good results with doing pre-fetch and post-write, applying essentially a "virtual editor" model at the backend, with a "virtual window" underneath it that did demand-paging across the link. Editing commands across the link operated on lines, not characters, though that wasn't necessarily the interface presented to the user. Anyone else remember this? Can you give more details? They certainly used a protocol that was lighter weight than TCP, but the idea is an old one. With 9600 baud links, I would think we could achieve acceptable results. chris