Abstract-Recent proposals for content routing in information-centric networks (ICN) require the use of contentbased routing tables listing routes to name prefixes or individual named data objects (NDO), and a single naming space for NDOs. We present CORD (Content Oriented Routing with Directories) as an alternative to content routing in ICNs. CORD eliminates the need for large content-based routing tables by establishing routes to directories using distance-vector signaling and by mapping name prefixes or names of NDOs to directories using publish-subscribe mechanisms. Simulation experiments using the topology of a real ISP network are used to compare CORD with name-based content routing approaches based on link-state and distance information. The results show that CORD attains comparable data delivery and end-to-end delays, but incurs orders of magnitude less control overhead. In addition, CORD supports multipath forwarding of content requests and content.
CORD REF combines redirection of content requests with content routing using a publish-subscribe approach based on a virtual DHT of directories listing the location of content.
CORD: Content oriented routing with directories
2015 International Conference on Computing, Networking and Communications (ICNC)
2015 International Conference on Computing, Networking and Communications (ICNC)
Computer Science