On Eventually-Available Data in Content-Centric Networking

Service-Centric Networking (SCN) comprises network architectures which enable consumers to take up computation services by name. SCN is a generalization of Content-Centric Networking (CCN) where location-independent content objects are requested directly by name (contrary to IP connection-based model). However, CCN-like architectures are tailored to deliver content which is "immediately" available and therefore do not deal well with eventually-available service responses. That is why deploying time-intense services on CCN is a challenge. In this paper we take a glance at result delivery of long-lasting computations in CCN. We survey existing ideas to deal with delivery timeouts of eventually-available data and also introduce new solutions. Some of the approaches only affect the logic on the producers and consumers while others touch the core network forwarding logic. We discuss pros/cons of the solutions and report on running prototypes of all described ideas.