Abstract

Recently, much research in quality of service (QoS) routing has focused on the unicast communication technique. However, Content Delivery Network (CDN) approach becomes popular because CDN enables effective and inexpensive improvement of Internet service quality. Therefore, we analyze in this paper a network processing two kinds of demands: content demands to CDN servers and standard unicast demands. Since MPLS defines effective mechanism for traffic engineering, we assume that the CDN is located in MPLS network. To examine the QoS performance of CDN-enabled MPLS network we propose new constraint-based algorithms for CDN server selection and evaluate relative performance of these algorithms and the most effective existing QoS unicast routing algorithms in terms of the demand rejection ratio. Document type: Part of book or chapter of book

Abstract

Traffic Engineering is one of the building blocks for a correct network planning. Internet Service Providers are always trying to fulfill the user Quality of Experience (QoE). However, each technological advance brings new services to the user, with new challenges to be solved to maintain the QoE.