[vox] Throttling router?

Michael Long vox@lists.lugod.org
Wed, 18 Feb 2004 17:07:47 +0000


hmm... I'd be interesting on hearing how this works if people did it or
even how you implement it. Although I'm not seeing what it gains you.
Yes source quelch tells your upstream isp to backoff and throttle your
bw but I thought the objective was to only throttle certian types of
traffic. The data is still coming out you, just being que'd up at a
different place instead of on your router now. With source quelch you're
throtteling overall bw... so ya, mabye i'm not seeing it ;)

Mike


On Wed, Feb 18, 2004 at 08:40:38AM -0800, Ken Bloom wrote:
> It's certainly possible to throttle incoming bandwidth, by sending an
> ICMP Source Quench error when a connection is sending data too fast.
> Although the remote host is free to ignore this error message, my
> networking textbook (Stevens - TCP/IP Illustrated, Volume 1) tells me
> that BSD ignores it for UDP but pays attention and slows down for TCP.
> I'm not sure what other operating systems do.
> 
> On Wed, Feb 18, 2004 at 12:45:01PM +0000, Michael Long wrote:
> > 
> > Keep in mind that all these solutions will only throttle bw upstream to
> > your provider. There is no way to throttle bw coming from your provide
> > because that would require putting acl's (or equiv) on the provider
> > router. So unless you're streaming bw out these "fixes" won't help to
> > much. 
> > 
> 
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