01-30-2008 08:35 AM - edited 03-03-2019 08:29 PM
If one is getting incrementing CRCs and input errors on Serial0/0/0 and the telco has tested clean to the smart jack onsite and now suspects faulty wiring or WIC card issue. How can I be certain its not a WIC card issue?
01-30-2008 08:46 AM
Perform loopback test by following this link:
http://www.cisco.com/warp/public/471/hard_loopback.html
HTH,
__
Edison.
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