Main ICN Architectures

This chapter presents some of the main ICN architecture proposals, focusing on how the basic content‐oriented concepts are applied. Content‐based networking (CBN) architecture is one of the first ICN proposals, heavily based on event‐notification publish/subscribe systems. Data‐Oriented Network Architecture (DONA) is the first information‐centric architecture based on clean‐slate concepts for secure and persistent content naming, name‐based routing and content distribution in a hierarchical network. Content‐Centric Networking (CCN) adopts named content as a first‐class citizen, addressing subjects such as high availability and security in a content‐oriented fashion, regardless of location. The Publish‐Subscribe Internet Routing Paradigm (PSIRP) architecture, in contrast to other ICN proposals, specifies a content‐oriented architecture without employing existing connectivity and data transfer technologies. Content‐centric inter‐network (CONET) architecture proposes a new CONET layer that provides users with network access to remote named‐resources rather than to remote hosts. Besides the already presented architectures, there are also other proposals for ICN implementation.