Research On Key Technologies Reliable Routing Of Smart And Cooperative Networks

The binding between resource and locators, the binding between control and data, and the binding between identity and locator are the three types of bindings in the current Internet. As result, the network mechanism is relatively static and rigid. It’s unable to meet the needing of the increasing users number and the network service over size. In addition, to deal with the defects of the traditional network, such as resource utilization, load balancing, scalability limitations, mobility, security, and so on, we propose a new architecture called smart and cooperative network. To separate the three bindings, the network architecture has three layers, called the smart service layer, the resource adaption layer, and the network component layer. It also has two realms, called the entity realm and the behavior realm. Based on this architecture, respectively in order to satisfy the current demands including high-speed, high efficiency, high throughput, and pervasiveness. This dissertation studies the routing key technologies based on smart and cooperative network, focusing on the multi-path routing algorithm, super node routing policy, distributed routing and content backup management. The main contributions and innovations are summarized as follows:1. According to the characteristics of the smart and cooperative network, we propose a multi-parameter multipath routing algorithm. The routing algorithm develops a multipath routing protocol, and the Registration Advertisement Message describes the network topology and routing path parameters, in order to generate multipath routing table. We calculate the weights to performance the network. The weights are determined by CPU utilization, Round-Trip Time (RTT) and bandwidth. The graph theory is used to establish a network traffic model. We develop and experiment the algorithm on the Mini-Net. The simulations prove that the algorithm can achieve the multipath data transmission function in the smart and cooperative network, and ensure transmission performance of the chosen flow distribution by CPU utilization, RTT and bandwidth. In addition, it is easy to implement, effective to save the network resources and optimized the network configuration, improved the efficiency of network transmission.2. According to the nodes in smart and cooperative network is peer, we propose the super node routing strategy. Some super nodes selected from the peer nodes are used to receive the routing information from their slave nodes and compute the face-to-path to establish forwarding information base (FIB). Then FIB was sent to slave nodes to control and manage the slave nodes. The theoretical analysis as Poisson process show that the super node routing strategy possessed robustness and scalability, achieved load balancing, reduced the redundancy and improved the network performance. In three topologies, three experiments were carried out to test the super node routing strategy. Network performance results showed that the proposed strategy had a shorter delay, lower CPU utilization and less redundancy compared with CCN.3. According to the structural characteristics of the smart and cooperator network, and the idea of "control" and "data" separation, a distributed routing management mechanism is put forward. The routing management mechanism conducts layered deployment of the family controller (FC) in the network, and layered management of the network routing strategies and cache strategies. The FC manages the information, including internal identification, storage and FSIB items, analyzes the information granularity and realizes the routing and cache management functions in the whole network. The family ID (FID) distributed routing management is realized through the distributed Hash algorithm. The graph theoretic model is employed to build the management model for the management mechanism. Then, the routing management mechanism is developed and experimented on the Mini-Net platform.4. We research the routing reliable and standby routing mechanism for intelligent collaborative network. There are two mechanisms, one is the router backup, the other is the link backup. The Leach algorithm has been adopted to select the standby router in the router backup mechanism. With the aid of virtual interface, both the main router and standby router will be transparent to the network. The link backup mechanism is used to the multilink, one link is the main link, the other is the backup link. Through Mini-Net simulated experiment, we has verified the two mechanisms. It has the advantage of fast switching and low delay.