Providing End-to-End Network QoS Via Overlay Networks and Bandwidth On-Demand

This paper examines why and how Overlay Networks are used to address the need for End-to-End assured Quality of Service (QoS) for Internet-based transport services. For organizations that provide services and products over the Internet, assured network QoS is highly important because it is a key factor in determining the quality of end-user experience their customers have. The main contributions of this paper are the identification and analysis of basic architecture design patterns required to build overlay network-based value-added functions such as QoS assurance, and the proposal and analysis of reconfigurable networking (bandwidth on-demand) as a an approach for expanding the range services and capabilities available on existing networks.