Exploit the Known or Explore the Unknown? Hamlet-Like Doubts in ICN
Most information centric networking designs propose the usage of widely distributed in-network storage. However, the huge amount of content exchanged in the Internet, and the volatility of content replicas cached across the network pose significant challenges to the definition of a scalable routing protocol able to address all available copies. In addition, the number of available copies of a given content item and their distribution among caches is clearly impacted by the request forwarding policy. In this paper, the authors gather initial design considerations for an ICN request forwarding strategy by spanning over two extremes: a deterministic exploitation of forwarding information towards a "Known" copy and a random network exploration towards an "Unknown" copy, via request flooding.