Date: Wed, 24 Jul 2002 15:13:50 -0700 (PDT) From: Julian Elischer <julian@elischer.org> To: Danny Carroll <danny@legalaliens.org> Cc: net@freeBSD.org Subject: Re: Dummynet queues and one-pass Message-ID: <Pine.BSF.4.21.0207241505570.4594-100000@InterJet.elischer.org> In-Reply-To: <001901c23351$2268db60$0164a8c0@llama>
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I have a program that does this for you.. (I even gave it to some people once) but I can't find it now. I think it's on my laptop at home. It diverts the input and output streams to itself and then interprets the packets into their respective data streams and buffers the streams accordingly.. It works out the bandwidth needed for each stream, and leaves just enough for the acks to sneak back in.. It does reduce the maximum incoming bandwidth but it also makes interactive work through the link bearable. I was considering making it a netgraph module. On Wed, 24 Jul 2002, Danny Carroll wrote: > > This does look like your ack packets are being held up > > behind a large queue of incoming packets at the far end of the > > link. > > > > Nealy all tcp packets have ACK. They may just not be ACKing NEW data.. > > > > I figured that out now... (Hmm Wish I still had those TCP/IP books) > > > try limit you incoming data rate to 22KB/sec > > (select a rule that does NOT apply to the acks of the upload) > > > > The acks for the upload will slip in througn that 1K/S gap you leave > > them. > > But that's the trick isnt it.... > I know that's what I need to do, but how do you make a rule that just gets > these upload acks? Or alternativly get a rule that matches everything but? > > Ideally I'd like it to work with any TCP app, http, ftp, icq, dcc, smtp, > whatever.... > > And also, should I just make one pipe for all the non-upload-ack packets > (the ones that would fit in the 22kb range) or a pipe for all and two > queue's with different weights? > > Which is the more elegant implementation. > > Sorry for the moranic questions but dummynet is new to me... > > -D > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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