Management of Inter-domain Quality of Service Using DiffServ Model in Intra-domain

摘要

During the last decade, Internet has experienced enormous evolution. This evolution concerns the huge quantity of traffic circulating over Internet and also the important diversity of these traffics types. Each type of traffic requires a specific QoS parameters. This point may represent a serious concern mainly due to the difficulty in ensuring QoS for traffics that cross multiple domains or Autonomous Systems (ASs). To solve this problem several researchs and studies has been proposed. In this paper, we describe a new mechanism that we proposed in a previous work to solve this problem. Our mechanism ensures the end to end QoS requirements over multiple ASs. This method keeps the same values of QoS parameters required by the traffic, even during its passage across several ASs. This paper explains the problem of inter-domain QoS, describes our new approach, we give then a case study of our solution using DiffServ model in intra-Domain. Simulation Results show the improvement of network performance when using the new mechansim and when comparing them to those of the standard case.