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New Member

crc errors on gig ethrnet interface

how can we stop crc errors from shutting down interface ?

1 REPLY
New Member

Re: crc errors on gig ethrnet interface

Hi, heres some ideas:

CRC problems usually comes from things like bad cabling, a bad port, or a bad NIC or duplex mismatch. Check this things first.

I guess that you have a switch that uses errdisable feature. When this feature is used a port that have problems are beeing shutdown. Problems like:

Excessive link change, excessive requests from EtherChannel, Spanning-Tree Protocol problems, and UDLD problems. Check your logs to pinpoint the problem.

If using Etherchannel: check your config and set speed, duplex and channel hard (no nego).

If using SPT: Set root and secondary root hard. Turn SPT off on ports for client.

If using UDLD: check links and modules.

Hope this can be help on the way;

Read more: http://www.cisco.com/warp/public/473/20.html

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