Dear all, I have done some extensive tests on upgrading ACS from 4.2 to 4.8, and one of the steps involves upgrading the virtual routers (VRs) which will cause downtime to network served by the VRs. Is there a way I can avoid such downtime?
Will having redundant VRs for every network help to avoid the downtime? Looking forward to your reply, thank youi. Cheers. -ip-