Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!lll-crg!ames!ucbcad!ucbvax!HARVARD.HARVARD.EDU!walsh 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 Sender: daemon@ucbvax.BERKELEY.EDU Organization: The ARPA Internet Lines: 12 Approved: tcp-ip@sri-nic.arpa 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