Date: Sun, 17 May 1998 12:27:37 +0200 From: Mattias Pantzare <pantzer@ludd.luth.se> To: dg@root.com Cc: hackers@FreeBSD.ORG Subject: Re: bad behaviour in slow start Message-ID: <199805171027.MAA26384@zed.ludd.luth.se> In-Reply-To: Your message of "Sat, 16 May 1998 23:46:09 PDT." <199805170646.XAA15423@implode.root.com>
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> > * Don't force slow-start on local network. > ... > >I think this is in violation of good TCP practices, and should be at > ... > >comments ? > > When sending out to a local peer, ethernet and point-to-point devices will > buffer the initial burst of packets with the local buffers draining at the > speed of the available link bandwidth, so I don't see why you would want to > do slow start in this case. This is different than the case of a congested > upstream circuit where you don't know about the congestion and have no > control over the buffering. The problem is that you can't detect if the other computer is a local peer or not, there may be routers in the path to it even if the netmask tells you that it is on the same subnet. It isn't even true on the ethernet level any more, switches create the same problems as a router. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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