Re: [2.2.{12,13p15}] PPP uploads fizzle out and die (tcpdump info incl.)

David L. Nicol (david@kasey.umkc.edu)
Mon, 18 Oct 1999 18:01:29 +0000


Steve Dodd wrote:
>
> On Wed, Oct 06, 1999 at 11:05:24AM -0500, J. Scott Berg wrote:
> > On Wed, 6 Oct 1999, Steve Dodd wrote:
>
> > > FTP upload rate withers away to sod-all and a huge
> > > gob of data remains resolutely stuck in the send-Q.
>
> > I've seen this before, long ago. I fixed the problem by specifying a
> > lower mtu.

> I tried this too and it seems to help, but I think it's masking the problem
> rather than curing it.

I had good results by using "renice" to give the uploading
ftp process higher priority. Waiting on a busy network link
blocks often, and in situations where you've got plenty of
bandwidth you actually want ftp to have a lower priority
than your interactive traffic. Renice was effective in
giving ftp a higher priority.

_______________________________________________________
David Nicol 816.235.1187 nicold@umkc.edu
perl -pi -e s/\\bNichol\\b/Nicol/g *

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