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From: walsh@HARVARD.HARVARD.EDU (Bob Walsh)
Newsgroups: mod.protocols.tcp-ip
Subject: Re:  TCP RTT woes revisited
Message-ID: <8612152153.AA12259@ucbvax.Berkeley.EDU>
Date: Mon, 15-Dec-86 13:04:49 EST
Article-I.D.: ucbvax.8612152153.AA12259
Posted: Mon Dec 15 13:04:49 1986
Date-Received: Tue, 16-Dec-86 22:15:54 EST
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Craig,

Have you thought of using a separate variable to measure the RTT of each
packet so that you can update you smoothed RTT using the EACKs?

When I last did RDP work, RDP and TCP were roughly the same speed.  Maybe
RDP was a bit quicker even in the LAN environment.  The reason RDP did
not dominate TCP was that the machines I was using were VAXes and the
RDP checksumming algorithm did not run as fast as it would on a machine
with a different byte ordering (like the 68K based workstations).

bob