Research On The Service Provider Mobility Management Of ICN

With the rapid development of network,the rapid growth of traffic in the network and the emergence of a large number of applications for mobile terminal applications have put forward higher requirements for mobility.The information centric network is proposed.In Information-centric networks,the content is named routed through the name of the network content.ICN focus on the content itself rather than content storage location.The content provider need to update the routing table of the whole internet At this point,the request message can not be sent to the content provider in a timely manner,which leads to the request packet retransmission,and reduces the network delivery rate.Therefore,efficient content provider mobility management mechanism is a hot research topic in the information center network.In this paper,we mainly study the mobility management of the content providers in the information centric network.This paper first analyzes the current traditional network of information centric in content provider mobility problems,such as low delivery and large content retrieval delay.This paper proposes an approach based on domain proxies to handle provider mobility.In this approach,we divide the network into several independent domains,and every domain deploys a domain proxy.The proxy not only can cache the data packets,but also can cache the request packets in the process of moving,which can reduce the packet loss rate.Content providers add mobile content segments to the switch messages before moving.The domain proxy node adds the flag field in the PIT table,which is used to mark the current content status.By the communication between the proxies,the problem of network delay can be solved.By the simulation and analysis using ndnSIM,we can certify that compared to the basic information-centric networks,the proposed approach performs better in the metrics--both the delivery rate and retrieval time.It optimized the information centric network content provider of mobility solutions.