Troubleshoot: a desk went dead overnight
One desk lost its network connection and nobody touched the switch. Find out why the switch shut the port down, fix the cause and not just the symptom, and bring the port back.
Part of the path Cisco switching (step 3 of 5), next: Split a switch into VLANs
Part of the path Troubleshooting (step 5 of 7), next: Troubleshoot: Engineering cannot reach the file server
The report
From Nina Petrov, Accounting
My desk lost the network this morning
My computer lost the network when I came in this morning. I did not change any settings. Facilities moved my desk on Friday, and I put my new IP phone between the wall socket and my PC so I would only need one cable. The light on the wall socket is off.
Impact: Nina cannot use the accounting system, and the month-end close is today.
What you will do
5 tasks1.Find the dead port
Nina sits on Fa0/2 of SW-ACCOUNTING.
2.Ask the switch why
The status shows the switch shut the port down by itself, which it does when a safety feature is triggered.
3.Fix the cause
Change the port so the same thing does not happen again the moment it comes back up.
4.Bring the port back
Changing the limit does not bring a port the switch shut down back by itself.
5.Check your work and keep it
Run show interfaces status once more to see Nina's port say connected, then save the configuration.