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    SubjectRe: bandwidth for bkbits.net (good news)
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    On Saturday 30 August 2003 21:39, Andrea Arcangeli wrote:
    > On Sun, Aug 31, 2003 at 03:05:37AM +0200, Pascal Schmidt wrote:
    > > On Sat, 30 Aug 2003, Larry McVoy wrote:
    > > >> All you have to do is drop the incoming packets if they exceed
    > > >> a certain bandwidth.
    > > >
    > > > If you think we haven't done that, think again.
    > > >
    > > > We're at the wrong end of the pipe to do that, I'm pretty sure that
    > > > what you are describing simply won't work.
    > >
    > > In a way, you're on the right end of the pipe because the system
    > > that does your traffic shaping is part of the general network, viewed
    > > from the machines behind the shaper.
    > >
    > > Dropping the packets means that the sending side, at least if we're
    > > talking TCP, will throttle its sending rate. But, depending on the
    > > distance in hops to the sender, it may take up to a few seconds for
    > > this to kick in. So I guess that's why it doesn't work for your
    > > VoIP case - the senders don't notice fast enough that they should
    > > slow down.
    >
    > that's because you don't limit the bkbits.net to a fixed rate. If you
    > want to give priorities, it won't work well because it takes time to be
    > effective, but if you rate limit hard both ways it has to work, unless
    > you're under syn-flood ;) The downside is that you will waste bandwith
    > (i.e. you will hurt the bkbits.net service even when you don't use
    > voip), but it will work.

    How about giving something to voip as a hard limit and then using some shaper
    to give it more if needed.

    Jeff.

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