cisco ios Cisco IOS 15.5 (ISR 2901) to IOS XE 16.6 / 16.9 (ISR 4331) Migration Notes on migrating IOS configuration from ISR 2901 (IOS 15.5) to ISR 4331 (IOS XE 16.6 / 16.9)
cisco CISCO Configuration Professional (CPP) Revival How to get Cisco Configuration Processional (CCP) up and running as a Windows VM, now that XP and Flash are no longer available and officially "end-of-life" and CCP has also been announced as "end-of-life"
