[j-nsp] Link Problems between P-1GE-LH and Cisco 3524 with LX Gbic

Joerg Staedele / Trusted Network js at tnib.de
Mon Aug 21 11:06:27 EDT 2006

Leigh Porter wrote:
> Sounds oright. What happens during an outage? Is the interface hard down?
> And what happens just before, do you have any stats from the interfaces
> such as Errors, Drops, Framing errors ?
> Do you have spare interfaces or optics that you can try and see if the
> problem follows any of them? Obvious troubleshooting really.

Yes, the interface is hard-down. (Like no cable is plugged in)

brainy at cr0.muc.de> show interfaces ge-1/3/0 extensive | grep errors
  Input errors:
    Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Policed discards:
60399, L3 incompletes: 4731, L2 channel errors: 5657, L2 mismatch
timeouts: 0,
    FIFO errors: 0, Resource errors: 0
  Output errors:
    Carrier transitions: 1, Errors: 0, Drops: 0, Collisions: 0, Aged
packets: 0, FIFO errors: 0, HS link CRC errors: 0, MTU errors: 0,
Resource errors: 0
    CRC/Align errors                         0                0
    FIFO errors                              0                0

And this stats were NOT reset.

Other side:

cas1.muc.de>show int gi0/2 | include error
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 output errors, 0 collisions, 5 interface resets

As you can see everything looks fine.

We will replace the cable, the dampening units and the Gbic tomorrow



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