Research On Key Techniques Of Data Center Network Address Auto-configuration

With the increasing demand of Internet service, data center networks become larger than ever. Network configuration optimization, network performance improvement becomes more important than ever, and address auto-configuration techniques for data center network is the key issue to such problems. Before data center servers and switches providing useful service, it is necessarily to configure the correct address. How to configure data center network address quickly and effectively is a hotspot of the data center network management.The main work of this dissertation is focus on the data center network address auto-configuration and the address conflict detection technology. Firstly, the main data center network architecture and auto-configuration of the network address research status are introduced. In allusion to the mapping problem for physical device to logical ID during the network address automatically configuration for data centers , we propose a mapping optimism algorithm—mDLI, which is based on graph isomorphism, and it's main idea is to select the degree of group strategy and group decision graph isomorphism; Secondly, In allusion to the conflict problem of address configuration, the type of configuration conflict is analyzed and we designed the configuration conflict detection method based on the subgraph isomorphism; Finally, on this basis, prototype system of automatic network address configuration for data centers is implemented. The main work and contributions of this thesis are shown as following:(1) We analyse the current data center network architecture, in allusion to the lack of automatic configuration technology for data center network, we propose the mDLI mapping algorithm which is based on graph isomorphism .We analyse three heuristics used in the algorithms: the candidate selection based on degree of grouping and feature vector method, filtering and selectivity removed based on the track, evaluation the performance of mapping algorithm using mDLI in different network architectures, the experimental results show that the mDLI mapping algorithm outperforms Saucy + and Nauty, match with O2.(2) We present a configuration conflict detection method based on subgraph isomorphism, analyse the data center network fault type. According to two situations whether the degree of device nodes is change or not, two different methods of detection and treatment are proposed. Additionally, we proposed conflict detection algorithm based on the subgraph isomorphism, and have done some simple test to analyse the performance of the algorithm.(3) We carry out the prototype system with JAVA programming language. In addition, database design and main interface of systems are given. Using OpenSM BCube, FatTree and VL2 to simulate three data center network architecture, and the prototype system was tested. The analysis results indicate that, mDLI algorithm in network address configuration of the data center can be achieved better results.In summary, this paper addresses the mapping algorithm of the data center network auto-configuration and configuration conflict detection and treatment, and in a test platform for the validation. The address configuration based on MDLI mapping algorithm in the data center network address auto-configuration aspect of the effective exploration, has some theoretical and practical value.