My client, a hosting provider, will be migrating their client to a new network. The servers etc will get another public ip-address. Because some clients have quite a few servers I would like to be able to spread the migration period while still be able to direct the users of the clients to the appropriate servers etc. Some in the old network and some in the new network.
A suggestion is made to do this with load balancers.
Is this a good idea and are there other methods?