An efficient QoS mapping algorithm in multi-provider networks

This paper addresses the problem of service specification and mapping across providers, supposing centralized approach, via the third party agent that manages negotiation process in a group of domains. A general structure of the service specification form is suggested. It contains technical parameters related with a particular service request. Based on such general form, we further propose, implement and evaluate an efficient algorithm for service class selection. The algorithm selects the most appropriate class for each domain by determining the closest conformance between the required and offered service level.