[c-nsp] %LINK-4-ERROR: FastEthernet0/1 is experiencing errors

[John Neiberger]

>>> "Feng Wang" <Feng.Wang at telus.com> 5/6/05 12:11:02 PM >>>
> Anyone has idea how to fix this problem?
>
>I have a Cisco 3512XL running Etherchannel with a Cisco 6509. The
Etherchannel has two fastEthernet links.
>
>There are "%LINK-4-ERROR: FastEthernet0/1 is experiencing errors" log
messages in 3512 side periodically:
>	May  5 14:39:52 pdt: %LINK-4-ERROR: FastEthernet0/1 is
experiencing errors
>	May  5 21:55:03 pdt: %LINK-4-ERROR: FastEthernet0/1 is
experiencing errors
>	May  5 22:40:37 pdt: %LINK-4-ERROR: FastEthernet0/1 is
experiencing errors
>	May  6 08:31:57 pdt: %LINK-4-ERROR: FastEthernet0/1 is
experiencing errors
>	May  6 09:17:03 pdt: %LINK-4-ERROR: FastEthernet0/1 is
experiencing errors
>
> And the interface on 3512 side reports CRC and overrun errors:
>
> 5 minute input rate 30426000 bits/sec, 5663 packets/sec
>  5 minute output rate 33608000 bits/sec, 7128 packets/sec
>     309548015 packets input, 2524293435 bytes
>     Received 35078 broadcasts, 0 runts, 0 giants, 0 throttles
>     1479 input errors, 1479 CRC, 0 frame, 1649 overrun, 1649 ignored
>
>There is no err reported on 6509 side.
>
>And I also check the speed/duplex on both side, they are hardcoded as
100M/Full Duplex.
>
>I suspect the port fa0/1 is defect in 3512 side. How do you think?

Try setting *both* sides to auto instead of hard-coding the speed and
duplex. That may clear up your problem. Or it may not. :) Let us know.

HTH,
John
--