Modem capacity and pppstats

[Kyle Rose]

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> How can this be possible? The output is higher than the physical limit
> of the modem. Does ppp use compression and the output of pppstats,
> is the uncompressed output?

Your modem uses compression.  I don't know what they use now, but back
in the day, they used V.42bis or MNP5 data compression, which was
reasonable but certainly not Lempel-Ziv.  If most of your upstream
traffic is text (http requests, command channels in ftp, HTML
publishing on a remote server, HTTP serving [over a modem!] etc.),
then since text compresses very well, I would expect you would be
getting better than "perfect" uncompressed throughput.

Kyle


- -- 
Kyle R. Rose                      "They can try to bind our arms,
Laboratory for Computer Science    But they cannot chain our minds
MIT NE43-309, 617-253-5883             or hearts..."
http://web.mit.edu/krr/www/                           Stratovarius
krose at theory.lcs.mit.edu                              Forever Free
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