I would say in most cases no! It’s not reliable. I can’t count the numberof times I’ve sent my cable installer to check on some cat 5 cable and outof embarrassment it checks good on his end!Better off using a fluke!

Also had these policing errors - found to be on several ports in one block (ports 14 - 24) specifically.  I found this out after doing a TDR test and finding pairs C&D short on every flapping one of them.  Running version 16.12.04 on switch 1 of a st...

And 16.12.04 as well

Thanks! Great Information.

Did you find solution to be helpful?  I also see same issue on one of our C881 logs.