Speedtouch "extended reach"

Duncan Sands baldrick at free.fr
Wed Oct 4 16:43:57 EDT 2006


On Wednesday 4 October 2006 20:59, Aurelio Arroyo wrote:
> Duncan Sands escribió:
> > In addition, the bytes sent by URB 147 and URB 148 are
> > determined by the parameters PeakDownStreamBitRate (ds) and
> > PeakUpStreamBitRate (us).  It's not clear exactly what the
> > relationship is: here's the data I gathered, I haven't had
> > time to analyse it yet:
> >
> > 	ds/us    U147  / U148
> >         ff/ff -> d4 ea / 05 00
> >         fe/80 -> 25 50 / 0a 00
> >         fe/1a -> 1c 50 / 32 00 (default)
> >         fe/10 -> 2e 50 / 52 00
> >         fe/02 -> 70 50 / 96 02
> >         fe/01 -> e0 50 / 2d 05
> >         fe/00 -> windows crashes (divide by 0?)
> >         fd/fe -> a0 ba / 05 00
> >         f0/f0 -> f2 f9 / 05 00
> >         ef/ef -> 5b ad / 05 00
> >         d0/1a -> 1c 81 / 32 00
> >         d0/10 -> 2e 81 / 52 00
> >         80/02 -> 70 12 / 96 02
> >
> > It looks like ds determines the second value,
> > and us the other three.  Windows crashed when
> > us was set to 0, so presumably division is
> > involved.
> Can be about this?
> http://en.wikipedia.org/wiki/G.DMT#DMT_technical_details

Thanks for the link.  It looks like the us and ds values
correspond to bins.  The default us value of 26 is in the
upstream bin range (7-31), while the ds value of 254 is in
the downstream bin range (32-254).  I'll look into this
more tomorrow.

Thanks a lot,

Duncan.



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