Re: bandwidth for bkbits.net (good news)

[Larry McVoy <lm@bitmover.com>]

On Sun, Aug 31, 2003 at 06:33:50PM +0200, Andrea Arcangeli wrote:
> On Sun, Aug 31, 2003 at 09:22:43AM -0700, Larry McVoy wrote:
> > On Sun, Aug 31, 2003 at 05:44:50PM +0200, Andrea Arcangeli wrote:
> > > > It doesn't work when you dont control incoming. As a simple extreme
> > > > example if I pingflood you from a fast site then no amount of shaping
> > > > your end of the link will help, it has to be shaped at the ISP end.
> > > 
> > > sure, that's why I said it won't work with synflood. 
> > 
> > Someone syncs w/ bkbits every 19 seconds 24x7.  We also run our web server
> 
> 1 syn every 19 seconds is nothing.

A sync != one connection.  And that doesn't include the auto backup that we
do to another server, doesn't include all the HTTP traffic, doesn't include
our web site traffic.

> > You guys who are saying it can work are thinking (a) one connection of 
> > long duration (think about all the web hits on bkbits.net, those are all
> 
> it doesn't need to be long duration, just longer than a syn or a ping.
> If it goes in established for a few packets is should be enough to
> throttle it just fine.

You are welcome to *demonstrate* something that works but telling me that it
works when we've tried what you said to try isn't very compelling.  I know
this doesn't work from both theory and practice.
-- 
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Larry McVoy              lm at bitmover.com          http://www.bitmover.com/lm