We have problems with a 3750 switch and We want to run a diagnostic test with the command "diagnostic start switch 1 test all". We are afraid about the time that the switch will be off-line because of this test.
Do you know How much time will it take for the switch to complete a test like this?
Your mileage may vary. The tests FLEW by and the 95% of the time in the 3 minutes was the reboot. I guess if the tests didn't pass okay, it could slow down the process.