ABSTRACT
In Information Centric Networking (ICN), on-path caching is an integrated caching solution with-in an Autonomous System’s (AS) local network. However, it is seen that in on-path caching, the content is cached en-route in the reverse path towards the Interest generator. Thus, local Rendezvous Network (RENE) /Name Resolution System (NRS) (in routing through name resolution) or FIB (in name-based routing) is not conscious of the cached data. Therefore, the most extensively deployed intra-domain routing protocol and their forwarding strategy is not capable of addressing all available temporary cached copies of the content. Hence, on-path caching strategy experiences two major downsides: numerous replicas of same content within AS without adding significant value in terms of cache resource utilization and an approach taken to minimize redundancy ends up with the cost of fetching more copy of similar content. In this paper, we introduce an integrated caching and forwarding solution which minimizes the caching redundancy and maximizes the probability of finding nearby cached content. We leverage Name Data Networking (NDN) node architecture and its forwarding plane/strategy (of routing) to attain our goal. Mathematical analysis to determine load balance and cache hit ratio, and simulation results considering average hop-distance and server hit ratio authenticate the efficiency of our proposed scheme.
