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Wednesday, February 3, 2010

err-disabled mode

Today I had a switchport that went in err-disabled mode. Command show interfaces status err-disabled indicated loopback for reason. It took a while but our technicians eventually followed the cables in the ceiling and they were badly patched.

Cisco has a great page with all the details:

http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00806cd87b.shtml#topic2

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