A Framework toward Optimal Operation of Service Overlay Networks Assuring Inter-domain QoS

A design framework towards the profitable operation of service overlay networks

We present in this paper a generic design framework towards the profitable operation of a service overlay network (SON) that aims to assure inter-domain quality of services (QoS). Revealing some involved NP-hard topological design tasks, we work out efficient heuristic methods for the practical implementation of the proposed framework. The efficiency of the developed heuristic methods is tested...

On the Service Overlay Network Concept for End-to-End QoS Assurances

This deliverable summarizes our recent research results on the topic of service overlay networks, an innovative concept for end-to-end QoS assurance. It reports the research contributions we have achieved during the last period, including i) a technical overview and evaluations of existing architectures for end-to-end QoS with special focus on the overlay network solution, ii) our scientific co...

Routing on Overlay Networks: Developments and Challenges

Overlay networks are networks operating on the inter-domain level, where the edge hosts learn of each other and, based on knowledge of underlying network performance, they form loosely coupled neighboring relationships. These relationships can be used to induce a specific graph, where nodes are representing hosts and edges are representing neighboring relationships. Graph abstraction and the as...

Quality-of-Service Signaling for Virtual Networks

Network virtualization is a promising abstraction technique, not only to optimize the utilization of network resources, but also to design and actually bring out completely novel network architectures and protocols [1]. Such a virtual network consists of virtual nodes that are interconnected by virtual links. Thus the virtual network builds its own logical overlay structure on top of the physic...

Interdomain QoS paths finding based on overlay topology and QoS negotiation approach