Is this a hardware failure or others?

[guominquan]

hi,all

I have got a switch log from my customer,I don't know it is hardware failure or other cause?Attachment is the log.thank you!

Best regards.

Minquan.G

[Prashanth Krishnappa]

Are you concerned with the port flapping?

27w3d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/22, changed state to down

27w3d: %LINK-3-UPDOWN: Interface FastEthernet0/22, changed state to up

27w3d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/22, changed state to up

If so, it is not necessarily an hardware failure. Few things I would do

1)Move the device on Fa0/22 to some other port and see if the problem follows the device

2)Connect a good known device using a good known cable to fa0/22.

3)Change cables.

[guominquan]

Hi,prkrishn

Thank you for your reply.I will try it according with the way you provided.

Regards!

Minquan.G