Protocols for ATM access networks

Tradeoffs between the ATM (asynchronous transfer mode) transport protocol and the supporting signalling/control structure for a multiservice (broadband) access network are presented in the context of the development of broadband ISDN (integrated services digital network) access. It is concluded that detailed requirements for user-service control and call/connection signalling protocols must be evaluated with a view to expanding current ISDN control. It is argued that failure to develop a satisfactory migration path from existing ISDN signalling protocols to meet broadband requirements will require the definition of new signalling protocols, slowing the development of broadband ISDN and jeopardizing compatibility with current ISDN products