On Thursday, June 26, 2014 11:38:55 PM Nick Hilliard wrote: > Also the OP should note that when you boot from from > 12.2(52)SE to a later versions, the boot loader will > almost do a microcode upgrade on the C3560X platform. > Depending on the version involved, this can take up to > 35 minutes downtime per box. The release notes still > don't mention this as a risk, which is not good. It > would be very helpful if cisco provided some information > on this in the release notes.
Yes, we noted this on all upgrades from shipped 12.2 to operational 15. Ours were 3560G's and the microcode update took about 15x minutes (causing lots of fan noise). Mark.
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