A data center engineer is deploying a new Cisco MDS 9148 fabric switch at the edge of an existing storage fabric. The core directors are already at their maximum supported domain ID count, and adding another domain ID would exceed the fabric's scalability limits. The engineer needs the edge switch to connect servers to the fabric without consuming an additional domain ID, while the core switches must be able to allow multiple logins over a single uplink. Which combination of features must be enabled to meet these requirements?