Date: Sun, 17 May 1998 20:11:03 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: pantzer@ludd.luth.se (Mattias Pantzare) Cc: dg@root.com, hackers@FreeBSD.ORG Subject: Re: bad behaviour in slow start Message-ID: <199805172011.NAA27836@usr05.primenet.com> In-Reply-To: <199805171027.MAA26384@zed.ludd.luth.se> from "Mattias Pantzare" at May 17, 98 12:27:37 pm
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> > 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. It sounds as if you need a mechanism for marking interfaces as local or non-local. See: http://www.freebsd.org/~terry/DIFF.TRUST.txt http://www.freebsd.org/~terry/DIFF.TRUST http://www.freebsd.org/~terry/DIFF.ifconfig Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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