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Re: Testing cat-5 cables with Debian as opposed to cable tester?



In <[🔎] 880dece00904220507j38722eccq5b39b1d57b000a4c@mail.gmail.com>, Dotan 
Cohen wrote:
>There are cable testing equipment available, for measuring parameters
>such as attenuation, crosstalk and others. Can two Debian (or
>Debian-derived distros) be used to test cables in lieu or expensive
>testing equipment?

Not normally.  Your standard NIC does not have sensors for measuring such 
things and doesn't expose that information to the OS.

>I have several cat5 cables that have been twisted,
>bent, stepped on, dragged, rolled over, and worse over the years. I'd
>like to know which cables are in need of replacement.

You might be able to estimate the quality of a network cable by transferring 
random data across it from one Debian host to another and measuring the 
speed.  (Or, probably better, the ratio of (packets dropped because of 
checksum failure) / (total packets sent)).
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