Abstract
Named Data Networking (NDN) has been considered as a promising Internet architecture for the future data-centric communication. In particular, NDN over link-layer networks would cut off the overheads of Transmission Control Protocol/Internet Protocol (TCP/IP), and enhance the efficiency of data distribution. However, there are two main unsolved issues for the NDN link-layer, namely broadcast overhead and Maximum Transmission Unit (MTU) mismatch. In this paper, we have therefore designed and implemented an NDN Neighborhood 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. In comparison to previously proposed NDN link-layer technologies, we can fix both MTU mismatch and broadcast overhead problems. Through emulation and experiments on a test-bed, we have also compared our NDN-NDP with the Link-layer Protocol for NDN (NDNLP), which is the most widely deployed NDNLP. From our experiments, NDN-NDP can efficiently fix MTU mismatch and broadcast overhead issue.
Highlights
Named Data Networking (NDN) [1,2] is one of the future internet architectures using the data centric network model
The experimental results have shown that NDN-NDP has no problem with the Maximum Transmission Unit (MTU) mismatch, while NDP with the Link-layer Protocol for NDN (NDNLP) has a serious problem with MTU mismatch
NDNLP has failed in two scenarios due to the MTU mismatch problem
Summary
Named Data Networking (NDN) [1,2] is one of the future internet architectures using the data centric network model. It is a proposal of the Information Centric Network (ICN) architecture, defined by the Internet Research Task Force (IRTF) [3]. NDN is expected to be more efficient for data distribution. For NDN deployment, it can be implemented on top of the current Transmission Control Protocol/ Internet Protocol (TCP/IP) stack, or deployed directly over a linklayer network without the TCP/IP protocol stack. NDN over the TCP/ IP stack would make NDN possible while the old internet is still running. NDN over the link-layer will cut off TCP/IP overhead
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