Thanks for the correction. Regards, Alexander Lim On May 19, 2012, at 6:41 PM, Daniel Husand <daniel at fnutt.net> wrote: > On 19/5/12 10:11 , Alexander Lim wrote: >> When doing IOS upgrade, you need to reboot the whole switches in the stack. > > No, in 12.2(58) 3750E and X got support for RSU (rolling stack upgrade). > > -- > Daniel