Quality of service requirements in ATM-based B-ISNDs

Abstract The purpose of this paper is to present the Quality of Service (QOS) requirements of bearer services in an ATM based B-ISDN environment. Asynchronous Transfer Mode (ATM) is a specific packet-oriented switching and multiplexing technique for carrying future broadband telecommunication services. An extremely wide variety of services with different traffic characteristics and performance requirements is expected to be supported by the ATM based B-ISDN. In this paper, the ATM QOS parameters are studied on a per service basis. For this purpose a number of characteristic bearer services has been selected, and the required values for the ATM QOS parameters for each of the selected services have been defined.