Title: Mechanisms for Inter-Domain QoS Routing in Differentiated Service Networks
Abstract: In order to provide various services with different
quality requirements, the current Internet is expected to turn into a QoS
based Internet under the Differentiated Service (DiffServ) architecture.
A variety of works have been done in the field of constraint based routing
to provide QoS guaranteed or assured services by developing novel routing
protocols and algorithms. However, most of these efforts focus on intra-domain
routing rather than inter-domain routing. In this paper, we discuss issues
of finding routes with QoS requirements among multiple domains, called
inter-domain QoS routing. We first investigate the needs and problems faced
when introducing inter-domain QoS routing into the Internet. Then, we present
a model for inter-domain QoS routing and describe its building blocks.
Finally, we present five mechanisms for operating inter-domain QoS routing
in DiffServ networks.