Path: utzoo!attcan!uunet!crdgw1!uakari.primate.wisc.edu!zaphod.mps.ohio-state.edu!van-bc!ubc-cs!news-server.csri.toronto.edu!utgpu!cunews!bnrgate!bwdlh131!mleech From: mleech@bwdlh131.bnr.ca (Marcus Leech) Newsgroups: comp.protocols.tcp-ip Subject: Re: Use of TCP/IP with satellite delays Summary: KA9Q works well on moderate-bandwidth high-latency links... Keywords: satellite Message-ID: <1990Oct11.133525.12689@bnrgate.bnr.ca> Date: 11 Oct 90 13:35:25 GMT References: <88084@aerospace.AERO.ORG> Sender: news@bnrgate.bnr.ca (USENET News System) Organization: Bell-Northern Research, Ltd. Ottawa Ontario CANADA Lines: 13 In article <88084@aerospace.AERO.ORG>, obrien@aero.aero.org (Michael O'Brien) writes: > More specifically I'm talking about something like a KA9Q implementation > running via satellite radio link from a research vessel at sea. KA9Q works very well in this type of environment--Phils round-trip-timer algorithm is generally acknowledged to be the best in the business. It's quite accurate, and converges quickly. I've used KA9Q over a satellite link between Ottawa, and Calgary. Provided you have a low BER, you can simply crank up your TCP WINDOW and MSS and expect to get quite good performance for FTP, etc. ----------------- Marcus Leech, 4Y11 Bell-Northern Research |opinions expressed mleech@bnr.ca P.O. Box 3511, Stn. C |are my own, and not VE3MDL@VE3JF.ON.CAN.NA Ottawa, ON, CANADA |necessarily BNRs