A Proposal for End-to-End QoS Provisioning in Software-Defined-Networks

This paper describes a framework application for the control plane of a network infras-tructure; the objective is to feature end-user applications with the capability of requestingat any time a customised end-to-end Quality-of-Service profile in the context of dynamicService-Level-Agreements. Our solution targets current and future real-time applicationsthat require tight QoS parameters, such as a guaranteed end-to-end delay bound. These ap-plications include, but are not limited to, health-care, mobility, education, manufacturing,smart grids, gaming and much more. We discuss the issues related to the previous IntegratedService and the reason why the RSVP protocol for guaranteed QoS did not take off. Thenwe present a new signaling and resource reservation framework based on the cutting-edgenetwork controller ONOS. Moreover, the presented system foresees the need of consideringthe edges of the network, where terminal applications are connected to, to be piloted by dis-tinct logically centralised controllers. We discuss a possible inter-domain communicationmechanism to achieve the end-to-end QoS guarantee