Hi,
In our organization we are driving OS code upgrade for ISR & ASR routers. While upgrading the routers from older releases to newer IOS-XE 16.09.05 which is recommended on Cisco website, keys configured for MACSEC, IPsec, Radius and SSH gets corrupted post reload and router goes out of network completely and connections could only recovered after reapplying the keys again through console and in some cases had to rollback the IOS as well.
In this case we were trying to upgrade from 03.16.04b.S - 15.5(3)S4b to 16.09.05.
I would like to know if this is a normal behavior for or any bug causing this.
Also is there any upgrade compatibility tool to know if router can be upgraded with recommended latest code?
Is there any better plan to handle such incident?
