Hello,
I've dug here and else where but have not found a working answer to this. I have two WS-C3750X-24P-S 's both were shipped at the same time, same code.
Switch A - in production for a year + with 12.2(55) SE3 code and a upgraded license to ip services so it would do all the routing.
Switch B - around 16 months of running on switch A, switch B (Lanbase) was stacked in to expand, the ios versions did their syncing, the stack join worked and the was ready to roll within a hour.
About 7months later - roughly 3 weeks ago I was seeing some high cpu utilization and it was suggested that the sdm prefer be changed from default to routing which required reboot. Upon reboot the Switch B did not come back up. Come to find out one switch showed "STACKMGR-5-MAJOR_VERSION_MISMATCH" which is true, Switch A is 1.57, Switch B is 6.57.
I have 10 more of these same models doing routing with Ip base, 2 of the 48 port versions doing routing (ip base) and a dozen or more others (lan base) just as access level, Switch B is the only one I've found so far that anything but 1.57.
I upgraded them Friday to the 15.2(3)E code, no change. How can I get B to be a 1.57?
Thanks
Mike
