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Can cable and DSL modems do data compressions?



 
 
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Old August 28th 13, 01:33 AM posted to comp.dcom.modems.cable,comp.dcom.adsl,comp.dcom.xdsl,comp.sys.dcom.xdsl,dsl.help
Jeff Jonas
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Default Can cable and DSL modems do data compressions?

I know dial-up modems can compressed datas if not already.
Can cable modems do the same too?


Later "smart" modems added compression,
thus the false advertising for 4x the actual speed
(they always assumed a 4:1 compression, which was unrealistic)
See:
http://en.wikipedia.org/wiki/Microco...rking_Protocol
MNP 5, introducing on-the-fly data compression in the modem.

There have been great replies about cable & DSL modulation schemes.
For compression, it's up to the applications such as ssh
(which allows compression regardless of the link).

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