Re: supdup protocol


kent@decwrl.dec.com
Mon, 12 Oct 87 08:54:14 -0700


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



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