I am having 2 number of cisco 4500x switch and configured with VSS
so one switch is active and another switch is standby.
I am panning to upgrade IOS through ISSU
i read in document that it required auto boot enable in switch.
My switch current Configuration register = 0x2101
do i need to change config register or this will ok. If need to change then what will be auto boot and after IOS upgrade do i need to change it again.