Routing Optimization Strategy Based On Content-Centric Networking

With the rapid development of Internet technology and applications, content services and information sharing have become the main service goals of the Internet. In order to meet this change, the researcher proposes a new network architecture--Content-Centric Networking (CCN), which cares about the content of resources instead of resources location. CCN uses data names rather than IP address for transmission, which makes the data itself become core essential factor of the Internet architecture. It has put forward a new7-layer protocol stack. The CCN routing transmission mainly relies on the CS storage, PIT and FIB table.Based on the research of original CCN routing strategy, this paper proposes a routing optimization scheme, which implements the communication between different domains. It also implements the communication between the CCN network and the IP network, and improves the efficiency of resource searching by optimizing the transmission path.Firstly, this paper briefly introduces the research background, CCN system architecture and the current research hotspots. It also analyses the problems of CCN network routing policy and introduces the work purpose. Those problems include communications between the domains, communications between the networks, low transmission efficiency and so on.Secondly, Routing optimization scheme is introduced in detail, including the design idea, implementation approach, message format, interactive process of the main module and so on. The center node is used as the control node of domains, which can calculate transmission path to implement the inter-domain communication. The Boundary node is used as the bridge between the CCN and IP network. Ant colony algorithm is used to tag the forwarding face quality, which can determine a better transmission path and reduce redundant traffic.Moreover, by using the NS-3simulation platform, this paper sets up the test topology to do the related functional testing and performance testing. The results verify that the scheme can implement the functional goals. Finally, this paper summarizes the related work, and proposes the next research direction.