Research On Resource Management And Scheduling Of Grid-Based Reconfiguable Optical Network

With the development of network technologies, convergence of computer networks and optical network has become the development trend of next-generation network. Computer networks has a very rich set of applications, requirements of bandwidth and latency in these applications are very different from each other, so it's very difficulty to access and scheduling decentralized, heterogeneous resource. The link of most existing optical network is a fixed connection mode, thus couldn't make dynamic resource allocation according to the diversity of network traffic and real-time change of network topology. To solve this problem, reconfigurable optical network has been proposed, which could dynamically change topology and could make parallel scheduling of data resources, thus effectively improving resource utilization of optical network.Distributed scheduling mechanism is needed to assign heterogeneous resources, while grid is a topic of concern in distributed technology. Grid is a distributed resource sharing system, with the feature of various resources, flexible structural, wide range and combined with the specific application. Grid system has the ability to centralize resources and define them into a variety of services, and personalize these services to meet the specific needs of users. When this comprehensive, powerful resource scheduling function combined with the huge bandwidth of optical networks, it can play a huge advantage and provide users with quality services. Based on this background, a grid-based reconfigurable optical network is presented and resource management and scheduling mechanism of which are studied is this thesis, the main works are listed as follows:1. Architecture and network model:A model of service-oriented and grid-based reconfigurable optical network is proposed, this model divided the network into four levels, which simplify the layer structure and avoid overlapping of layers, and cross-domain support is added in the control plane.2. Mechanism of cross-domain resource management and scheduling: Parallel scheduling of cross-domain heterogeneous resources, distributed multi-domain routing mechanisms, technology of network interface and network topology reconfiguration mechanism are designed and developed to achieve parallel and cross-domain scheduling of heterogeneous resource.3. Platform of grid-based reconfigurable optical network:A platform is constructed to verify the proposed network architecture and resource scheduling mechanism. Experiment results show that the rationality of network model and the feasibility of resource scheduling mechanism.