Solving MTU Mismatch and Broadcast Overhead of NDN over Link-layer Networks

Abstract

Named Data Networking (NDN) is a clean-state network architecture promising a fidelity data-centric communication. In particular, NDN over link-layer networks would reduce the overheads of TCP/IP, and enhance the efficiency of data distribution. However, several unsolved issues in NDN over the link-layer networks still damage NDN networks, such as broadcast overhead and MTU mismatch. In this dissertation, we have therefore designed and implemented an NDN Neighbourhood Discovery Protocol, named NDN-NDP, to enable a unicast data transmission over the link-layer. Furthermore, our NDN-NDP has included a negotiation mechanism to fix the MTU mismatch issue. Through CORE emulation, we have demonstrated that our NDN-NDP outperforms the previously proposed NDN link-layer technologies in terms of broadcast overhead, network throughput, delay and a number of unsatisfied interest. Our NDN-NDP can decrease broadcast overhead, delay and a number of unsatisfied interest approximately 99%, 46% and 11% respectively. In addition, our NDN-NDP increases network throughput around 22%.

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