The Distance-based Content Routing (DCR) protocol is introduced, which enables routers to maintain multiple loopfree routes to the nearest instances of a named data object or name prefix in an information centric network (ICN), and establish content delivery trees over which all or some instances of the same named data object or name prefix can be contacted. In contrast to all prior routing solutions for ICNs, DCR operates without requiring routers to establish overlays, knowing the network topology, using complete paths to content replicas, or knowing about all the sites storing replicas of named content. It is shown that DCR is correct and that is orders of magnitude more scalable than recent name-based routing approaches for ICNs, in terms of the time and signaling overhead needed to obtain correct routing to named content.
Recently, DCR REF was introduced to support name-based content routing using distance information regarding the nearest instances of NDOs or name prefixes.
Name-based content routing in information centric networks using distance information
ICN '14
Computer Science