Date: Tue, 02 Oct 2001 22:02:27 +0200 From: Juan Fco Rodriguez Hervella <jrh@it.uc3m.es> To: Lista <freebsd-net@freebsd.org> Subject: Re: How to increase TCP and UDP buffers (for IPv4/IPv6) Message-ID: <3BBA1D53.B0C9C133@it.uc3m.es> References: <200110021551.f92Fpjr25843@iguana.aciri.org>
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Luigi Rizzo wrote: > > > Hi: > > > > It's possible to increase the TCP and UDP buffers ? > > > > I've had problems with UDP packets of 64 bytes discarded with a bandwith > > of 2-3 Mbits, using a FreeBSD-4.3 router in a link of 10 Mbits. > > a router does not buffer through traffic in a socket buffer (which is > what "TCP and UDP buffers" are) but on the interface queues and ipintrq, > which are typically 50 packets. > If this is the case you should see ipintrq drops listed > with > > sysctl net.inet.ip.intr_queue_drops > > and you could try to increase the size of that queue with something like > > sysctl -w net.inet.ip.intr_queue_maxlen=100 > > cheers > luigi What's the meaning of "ipintrq" ? and it's possible to modify the interface queues in Linux ? How many queues exists between the interface and the application ? Are the same to transmit and to receive ? Thank you very much. -- ********************************* Juan F. Rodriguez Hervella Universidad Carlos III de Madrid ******************************** To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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