Research And Implementation Of Multicast Technology Based On Openflow

In the development process of traditional network, because of the Internet presents an explosive growth. The development of network scale and application technology has been far beyond the original developers expected, so the trend is also the traditional network brings many problems, Such as the vast majority of the current network is connectionless oriented, try your best to forward the agreement, and network transmission quality is placed in the inferior position. At the same time, many network equipment deployment and configuration are manually configured by the network administrator, When need to adjust the whole network is encountered, the efficiency is very low, even is unable to complete and so on.It is because of the traditional network bottlenecks encountered unprecedented developing, Necessary technical breakthrough at the same time, as the rapid development of cloud computing and virtual technology, distributed computing technology has matured, new network exchange model based on the technology of OpenFlow concept arises at the historic moment. Has caused wide public concern in the field of network development, many scholars and enterprises was devoted to the study of the new network. Under this background, the support OpenFlow protocol switch is developed, and got many equipment manufacturers such as huawei, Cisco, HP’s support, such as the concept of the new network has also been preferred by the web developer. This new kind of Network model are Defined as Software Defined Network(Software Defined Network), have been widely applied to the Network data transmission, Network security and deployment areas.Ant colony algorithm is a group of intelligence theory in the field of one of the main algorithm, it is according to the biological behavior of ants foraging simulation of a highly efficient to find the shortest path algorithm, has been applied in many fields. But because this kind of algorithm convergence speed is slow, because I found local optimal solution and is easy to stop operation, make the whole system to a standstill, so many scholars put forward a kind of improved ant colony optimization strategy. In this paper the application of the improved algorithm strategy of current mature under the new network model, to improve the positive SDN network transmission of multicast routing state, at the same time, the in the process of data processing to the CPU and memory requirement is not high, and has the characteristics of parallelism and distributed, very suitable for the SDN network model, used to calculate the multicast to find the shortest path.Multicast technology has being a research hot topic, web developers because of multicast technology is widely used in new types of communications services, such as video conference and video broadcast network, such as real-time interactive network group are based on the multicast data transmission mode. Because these services must be demands data real-time transmission and data transmission quality(Qos), at the same time the traditional IP multicast technology is try our best to forward packets and multi-user oriented. On the path of the IP multicast forwarding nodes, support multicast protocol requires each node, and are required to keep each node multicast state, path to find the time cost is larger at the same time. This paper studies the main method is to use OpenFlow technical Data transmission, Data Path and control transmission controller(Path), the characteristics of separation, the improved ant colony routing algorithm in the form of control components used in the controller, control the transmission of Data, get the multicast OpenFlow switch of the shortest Path to purpose, improve the efficiency of multicast routing.