Mapping IP Services to ATM Network

Abstract

The best-effort service model in the Internet does not provide any form of service differentiation. To support service differentiation in the Internet, the Internet community has developed integrated service architecture (Intserv) and differentiated service architecture (Diffserv). On the other hand, ATM has been widely deployed in Internet backbones. Thus, service mapping between IP over ATM network is an important issue. In this paper, we summarize how to provide Intserv and Diffserv on ATM. First, the mapping between Intserv and ATM is described. Then we discuss the service mapping between Diffserv and ATM according to the absolute and relative services.