Date: Fri, 20 Sep 2002 22:30:43 -0400 From: Barney Wolff <barney@tp.databus.com> To: Julian Elischer <julian@elischer.org> Cc: net@FreeBSD.ORG Subject: Re: Tcp question. Message-ID: <20020921023043.GA90973@tp.databus.com> In-Reply-To: <Pine.BSF.4.21.0209201718100.21069-100000@InterJet.elischer.org> References: <Pine.BSF.4.21.0209201718100.21069-100000@InterJet.elischer.org>
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I think you need to separate out tcp behavior from ssh behavior. A & C are clearly not the same tcp/ssh implementation, and I'm not even sure B is consistent between the two runs - for example, B's window size is different, as is the amount of data it sends before setting the P bit. With ssh doing compression & encryption, cpu power becomes visible at lan speeds. The 1380 mss from C may also indicate extra proto layers we're not seeing. And are you sure there's not a 10 mbit link somewhere between B and C? On Fri, Sep 20, 2002 at 05:53:49PM -0700, Julian Elischer wrote: > > OK so I have 3 machines: > > > A------router--------B-------router--------C > > > if I send data from B to A I see 7MB/sec. > if I send data from B to C I see 700KB/sec -- Barney Wolff I'm available by contract or FT: http://www.databus.com/bwresume.pdf To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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