DITNM: Dynamic interest transmission scheme in Content Centric Networking with name mapping

Content Centric Networking (CCN) is one of the representative Information Centric Networking (ICN) architectures. In CCN, data objects are accessed instead of end hosts, and each router maintains a large size of routing table consisting of all name prefixes announced by content servers. To improve the scalability of CCN, an alternative name space relating to Router IDentifier (RID) has been proposed for forwarding the interest instead of using the name prefix of data object, and a name mapping system is applied for mapping data objects related names to RID related names. In this paper we propose dynamic interest transmission scheme in CCN with name mapping (DIT-NM), in which interest can be forwarded towards dynamically chosen RID through dynamically chosen interface associated with the RID according to real-time monitoring network status and traffic load information. The performance of the proposed scheme is evaluated using realistic network topologies with respect to latency and network link utilization. We also compare with the basic CCN model and multi-repository single path (MRSP) to highlight the advantages of our scheme. Achieved results demonstrate the effectiveness of the proposed scheme in reducing latency, improving robustness and balancing overall traffic distribution in name-mapping CCN environment.