root access is provided and accessed only by cisco tac. so is this supported or not?

i know at work at tac, not supported, thats not the appropiate way to route packets in a network specifically a high availability server as CUCM, we can do it, but the best way to setup your network so traffic depending source uses different poath like route-maps. You can contact your local SE to push for a feature enhacenment to do that from regular cli.

I understand this is not big deal once we have the access, we do it in our machines everyday but we havent test it or we dont know how this affect your server at all.

Thanks Justin

Checking CLI for 7.x

We still dont have a command to add routes. This is in fact not supported, you can open a TAC case if its urgent, no problem, but as Justin explained you is not supported and not the best practice for a high availability server as CUCM.

Since we dont know what other behavior may affect the server performance.