Hopefully the picture will explain it a bit more.
We copy the config files from the Production cores to the Dev cores (And 2 selected 5530 stacks, depending on the need) and then run any tests on the Dev environment before applying them to the production environment. This way both the production and Dev cores have the exact same configs. Not something I'd like to link via the network, hence the use of the management interfaces. From the COM server I can ssh to both production and dev, I can also connect to the dev environment via https over the management interface (after adding an access policy to their configs).
Also the COM server is a VM so adding another NIC to the server in the dev environment is not a good option. (Can be done, but I still like physical separation...)
One option is to run up a physical server and install the time limited version of COM to see if the config works as per normal over the dev network.
Just curious if anyone else has tried this?