Subnetwork access technologies and internetworking within the TMN

The author focuses on some of the existing and emerging subnetwork access technologies and presents strategies for interworking. These subnetworks include the backbone data communications network (DCN) and the network element (NE) access network or local communication network (LCN) in the telecommunications management network (TMN). TMNs may include multiple subnetworks including packet-switched networks, public switched telephone networks, and private-line networks. The need for internetworking among different types of networks within a TM as well as between TMNs themselves is discussed, along with the issues that must be addressed to provide an integrated solution.<>