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Forwarding Strategies Performance under Diverse Topologies in Named Data Networking

Named Data Networking (NDN), which is a new future Internet architecture, inherits the hourglass shape of the IP but replaces the IP's end-to-end packet delivery model by a data retrieval model. This paper considers the problem of multiple forwarding strategies against different topologies. We design seven topologies with different connectivity in order to compare the performance of the different forwarding strategies under diverse network topologies and results shows that the influence of connectivity on multiple forwarding strategies is rather different. The strategy NCC maintained higher drop rate than multicast until connectivity is up to 0.3 and the delay of diverse forwarding strategy was different from each other when it came to connectivity. Besides, we innovatively develop a hybrid multi-strategy selection scheme in NDN which sustains routers in the same network adopting different forwarding strategies. Simulation results have shown that in our proposal the delay of desired content after emitting the Interest packet is reduced by 25% compared with the recent researches.