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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!nntp.coast.net!dispatch.news.demon.net!demon!usenet2.news.uk.psi.net!uknet!usenet1.news.uk.psi.net!uknet!uknet!news.swan.ac.uk!iialan From: iialan@iifeak.swan.ac.uk (Alan Cox) Newsgroups: comp.os.linux.networking,comp.unix.bsd.netbsd.misc,comp.unix.bsd.freebsd.misc Subject: Re: TCP latency Date: 10 Jul 1996 19:03:28 GMT Organization: Institute For Industrial Information Technology Lines: 18 Message-ID: <4s0uq0$fpe@news.swan.ac.uk> References: <4rlf6i$c5f@linux.cs.Helsinki.FI> <31DEA3A3.41C67EA6@dyson.iquest.net> <v6wx0gdmn3.fsf@zhaneel.flame.org> NNTP-Posting-Host: iifeak.swan.ac.uk Xref: euryale.cc.adfa.oz.au comp.os.linux.networking:44697 comp.unix.bsd.netbsd.misc:3987 comp.unix.bsd.freebsd.misc:23231 In article <v6wx0gdmn3.fsf@zhaneel.flame.org> Michael Graff <explorer@zhaneel.flame.org> writes: >So TTCP is something FreeBSD decided would be cool, put it in, and to hell >with standards? Or is TTCP something standard, which I can find in an >RFC somewhere? RFC1644 which explicitly states that it is experimental. Nobody has yet finalised the work and investigated some of the RST/RST-ACK issues that are implied even more by 1644 but not covered in the TCP protocol. TTCP also breaks over small window networks (like AX.25 ) and fails to interwork with some stacks since it violates the TCP RFC by sending data into a window that has not yet been opened. Alan -- ----------------------------------------------//// Yow! 233 microsecond remote host TCP latency ---- beat that --------------------------------------------////__________ o Alan Cox, Alan.Cox@linux.org /_____________/ / /\/ /_/ ><