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From: braden@ISI.EDU.UUCP
Newsgroups: mod.protocols.tcp-ip
Subject: Re: ICMP messages
Message-ID: <8702241636.AA00792@braden.isi.edu>
Date: Tue, 24-Feb-87 11:36:12 EST
Article-I.D.: braden.8702241636.AA00792
Posted: Tue Feb 24 11:36:12 1987
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Chris,

All the present and proposed "transaction" protocols (Birrell&Nelson,
VMTP, SEP, TTP, etc.) being discussed in the End2end Taskforce do in
fact depend upon the Delta-T concept (which you have so cogently
summarized) to avoid an initial handshake. Delta-T was never "popular",
since it was implemented only at LBL; it is much less well known in our
field than it deserves.  Dick Watson thought through the consequences
of his assumptions more thoroughly than we often do, and his papers are
recommended reading for anyone new to the protocol design field.

Bob Braden