[3033] in linux-net channel archive
Re: PPP *outgoing* slow
daemon@ATHENA.MIT.EDU (Eric Schenk)
Tue May 28 16:23:16 1996
To: athan@mersinet.co.uk
cc: linux-net@vger.rutgers.edu
In-reply-to: Your message of "Mon, 27 May 1996 21:07:00 EDT."
<4odjjk$l0g@server3.mersinet.co.uk>
Date: Tue, 28 May 1996 10:53:18 -0400
From: "Eric Schenk" <schenk@cs.toronto.edu>
athan@mersinet.co.uk <athan@mersinet.co.uk> writes:
>Hi,
> After experiencing all the troubles with PPP around 1.3.8x/1.3.9y
>(x=8 or so, y=3 or so?), and thinking they were cleared up, I found it
>wasn't entirely so.
>
> I now get 'good' transfers INTO my machine (specs follow), but get
>absolutely *AWFUL* transfer rates out of it.
>On OUTGOING tranfers I get at most 50BYTES/s, sometimes as low as
>12BYTES/s. tcpdump'ing of such connections shows burtss of activity
>followed by great big pauses (it looks like it isn't re-sending packets
>soon enough).
Can you send me a copy of the tcpdump for this?
I have recently found that the bug fix I sent in for 1.99.6
has revealed some other bugs in the tcp retransmission scheme.
I'm in the process of fixing these problems, but I'm not
entirely sure that they are the same as what you are seeing.
If I can get a look at your tcpdump it might tell me something useful.
Thanks,
-- eric
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Eric Schenk www: http://www.cs.toronto.edu/~schenk
Department of Computer Science email: schenk@cs.toronto.edu
University of Toronto
