Various embodiments manage the migration of servers. In one embodiment, a set of server-level dependency information is obtained for servers to be migrated from a source computing environment to a target computing environment. A set of network configuration data is obtained for a plurality of network devices associated with the servers. The set of server-level dependency information is updated to include one or more additional dependencies of at least one of the servers based on the set of network configuration data. Updating the set of server-level dependency information generates an updated set of dependency information. The servers are assigned to multiple migration groups based on the updated set of dependency information. The migration groups optimize cross-group dependencies among the migration groups.