Coexist: Integrating Content Oriented Publish/Subscribe Systems With IP

Content-Centric Networking (CCN) seeks to meet the content-centric needs of users. In this paper, the authors propose hybrid-COPSS, a hybrid content-centric architecture. They build on the previously proposed Content-Oriented Publish/Subscribe System (COPSS) to address incremental deployment of CCN and elegantly combine the functionality of content-centric networks with the efficiency of IP-based forwarding including IP multicast. Furthermore, they propose an approach for incremental deployment of caches in generic query/response CCN environments that optimizes latency and network load. To overcome the lack of inter-domain IP multicast, hybrid-COPSS uses COPSS multicast with shortcuts in the CCN overlay. Their hybrid approach would also be applicable to the Named Data Networking framework.