Date: Wed, 22 Dec 1999 15:40:02 -0800 (PST) From: Jonathan Lemon <jlemon@americantv.com> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/1689: TCP extensions throttles distant connections Message-ID: <199912222340.PAA54590@freefall.freebsd.org>
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The following reply was made to PR kern/1689; it has been noted by GNATS. From: Jonathan Lemon <jlemon@americantv.com> To: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> Cc: Sheldon Hearn <sheldonh@uunet.co.za>, freebsd-gnats-submit@freebsd.org Subject: Re: kern/1689: TCP extensions throttles distant connections Date: Wed, 22 Dec 1999 17:30:59 -0600 I haven't been able to reproduce this here. Between two -current boxes: net.inet.tcp.rfc1323 = 1 on both machines, net.inet.tcp.delayed_ack = 1 on both machines, On one machine: ipfw pipe 1 config bw 128kbit/s delay 200ms ipfw add pipe 1 ip from hostA to hostB out ipfw add pipe 1 ip from hostB to hostA in This gives: recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire 0 0 0 400 3 0 1500 1012 E.g.: a 400ms round trip time. I don't see any abnormal delays in connections between the two machines. Is there something else I'm missing here, or is the problem gone in -current? -- Jonathan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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