As per "Message Routing in a Coexistence Environment" article (http://technet.microsoft.com/en-us/library/bb125223(EXCHG.80).aspx
"During Exchange 2007 setup, a routing group connector is created in both directions between the Exchange 2007 routing group and an Exchange 2003 or Exchange 2000 routing group. The Exchange 2003 or Exchange 2000 bridgehead server that you select during setup determines with which routing group the connection is made. After setup is complete, it is a best practice to add source and target servers to the routing group connectors for load balancing and redundancy.
We have created a routing group connector which handles traffic between the current local E2k and E2K7:
Exchange Routing Group (DWBGZMFD01QNBJR) contains local E2k7 server.
(Legacy) First Routing Group contains all legacy E2k servers.
We are about to install a second E2k7 server in a remote site, and I need to know if any additional routing groups or routing group connectors are created when I run the setup on the new server. If not, I need to know what to create and what to add to what?
I need some 'specific advice' on this - as I have read most of the technet / help articles on this, and am still not enlightened.