Research And Implementation Of Bcube Center Network Routing Protocol

The data center centralizes the resources of software and hardware which are capable of processing data,undertakes tasks of processing and storing large amounts of data,and provides efficient,reliable,as well as inexpensive information services when users need it.The data center network consists of a large number of servers connected by switching devices such as high-speed links and switches,thus the level of service provided by the data center to users depends on the network topology of the data center.When the servers interconnected by a specific way communicate with each other,it will lead to a rapid increase of internal traffic.How to schedule these traffic,avoid traffic convergence,and ensure the load balance of internal resources in the data center has become a hot issue.Data center network load balancing technology focuses on the problem of traffic scheduling,while the BSR routing protocol(BCube Source Routing)in BCube data center network can not uniformly distribute data streams to different transmission paths.As a distributed routing method,it can not guarantee the uniform distribution of the whole network traffic.A routing optimization strategy IBSR is proposed to achieve traffic balance distribution,based on the study of BCube data center network.The source routing protocols in BCube data center network do not have a global view when selecting alternative paths,which can not guarantee the optimal path.IBSR is at the cost of data flow velocity and its time delay ratio,which can effectively reduce data flow convergence and improve the overall performance of the network by combining random and probability based on Multi-logit Model..In view of the current situation that there is no existing data center network simulation platform,a simulation platform suitable for data center network is desigened and implemented based on the NS3 framework,including network topology generation module,network information monitoring module and routing module.the system can get the data flow and link status of the whole data center network through the network monitoring module.The data flow is distinguished to realize the balanced distribution of data flow through the data flow velocity,delay and path length.In the simulation platform,the performance indexes of the network are tested.By the comparative analysis of different scale data center networks,it can be seen that when the network is congested,IBSR algorithm improves the average network throughput,reduces the average network transmission delay and the average number of routing hops,compared with the equivalent multi-path ECMP(equal cost Multi path)algorithm and BSR algorithm.The results show that IBSR algorithm has better reliability and robustness,can better handle the flow convergence problem,and better realize the load balance of BCube data center network.