I just purchased four C3750E switches (3750E-48-PD-SF)
They all came with the following image:
UNIVERSAL W/O CRYPTO WITH WEB BASED DEV MGR (c3750e-universal-tar.122-35.SE5.tar)
I set up the 1st switch, configured it via console, connected its ethernet management port to my "normal switch" and all was well.
Then I attempted to upgrade to the latest revision - 12.2.50-SE3(ED) via the web-based management.
On the first switch, I tried the following image:
UNIVERSAL WITH WEB BASE DEV MGR (c3750e-universalk9-tar.122-50.SE3.tar )
The upgrade itself was trouble-free, but when I rebooted the switch, I could not access it via the network.
The management LAN connection bounces up and down on the switch it's connected to.
I see nothing on the console indicating that the new switch thinks there's a problem.
Then I tried the same routine on the 2nd switch, only this time I used the non-crypto version of the file - c3750e-universal-tar.122-50.SE3.tar
Same result: the upgrade goes fine, but post-reboot, the connection just bounces up and down.
Am I missing something obvious here?
I've never had this problem before.