Cache-Routing Scheme Based on Cache Index in Content-Centric Networking

Taking availability of in-networking cache in content-centric networking into consideration, a cache-routing scheme based on cache index(CRCI) is proposed in this paper. Forwarding engine module of router in traditional CCN is modified in this paper. Remaining CS, PIT and FIB, a cache index table (CIT) is added to a router. The way to create a CIT entry and manage the entry in CIT is expatiated, as well as, coordinated with CIT, a cache-routing scheme based on cache index is proposed. The scheme proposed can forward interest packet generated by user efficiently, decrease sever hit ratio and hops to forward interest packet. Finally, the simulation prove the feasibility of the scheme by comparing with existing schemes.