SRv6-based Differentiated Service Framework for IP Networks

With the development of 5G new services, the IP network layer needs to provide the service layer with deterministic carrying and forwarding capabilities characterized by differentiation and quality assurance. To effectively manage and utilize differentiated forwarding resources at the IP network layer, an open framework for IP network differentiated services based on SRv6 is proposed. The framework combines SRv6 BSID to abstract the end-to-end network forwarding path. A unified service resource pool with differentiated characteristics has been formed, and the service layer can schedule differentiated services on demand. We set up a typical operator backbone network environment in the laboratory, and verified that switching differentiated service resources on demand can make the video services own a better forwarding path. This framework can reduce the coupling between the service layer and the network layer, and provides differentiated services with guaranteed network quality through overlay and underlay collaboration.