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SubjectRe: Slow PPP?
On Fri, 29 Mar 1996, Michael D. Black wrote:

> At 11:28 AM 3/29/96 +0000, Steve wrote:
> >100Kb test file Winsock ppp-2.2.0e
> >-----------------------------------------------------------------
> >/pub/test/emptyfile (compressible) 6.24 Kb/s 3.80 Kb/s (-40%)
> >/pub/test/fullfile (non-compressible) 3.11 Kb/s 2.80 Kb/s (-10%)
> >
>
> Sounds somewhat similar to my behaviour (though I haven't tested under
> Windows).
>
> What I see is that throughput is bad to my ISP but is fine beyond them. A
> tcpdump shows duplicate packets and pppstats shows full throughput. My
> input is cut in half though where yours looks better. So, I don't think
> you're having the same problem as me.

Uh oh... More than one problem here ? :-(

> You're numbers look very suspicious though as though pppd is actually
> running at 38.4 instead of 115,200. Particularly the 3.8 on the
> compressible file. Do you have 115200 specified on the pppd connect line?
> (NOT the 38400 spd_vhi kludge)

I have to set BOTH spd_vhi, and 115,200 on both the 'chat' and 'pppd'
commandlines, AND I set 'stty speed 115,200 crtscts' before any of this
starts up (just to be sure)

Perhaps someone would does not have this problem would care to send me
their sample "ppp-on" scripts to try-out, that should eliminate silly
errors on my part (Send it direct rather than clog the list too much.)

Steve



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