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Cablenut9
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What is rx-code-error?

Sat Jun 26, 2021 3:24 am

The Mik Wiki says the ethernet "rx-code-error" statistic is just the number of frames with a code error. What does this actually mean? I can't find anything about "ethernet code errors" anywhere.
Last edited by Cablenut9 on Sun Jun 27, 2021 6:37 pm, edited 1 time in total.
 
Cablenut9
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Re: What is rx-code-error?

Sun Jun 27, 2021 6:37 pm

Bump
 
sindy
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Re: What is rx-code-error?

Sun Jun 27, 2021 7:01 pm

I would expect it to be an error in the line code - search for 4B/5B and MLT-3 to get the idea. The actual reason of these errors may be anything from weird sending device through ill-crimped connectors on the patchcords through to a damaged receiving circuitry of the Mikrotik that reports the errors.
 
Cablenut9
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Re: What is rx-code-error?

Sun Jun 27, 2021 7:44 pm

How does it compare to the FCS system used in L2? It seems like 4B/5B and MLT-3 errors are essentially layer-1 errors and FCS can be affected by this "code error."
 
sindy
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Re: What is rx-code-error?

Sun Jun 27, 2021 9:32 pm

I would assume that a code error prevents the affected frame from even reaching the FCS verification phase.

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