The Click Convergence Layer: Putting a Modular Router Under DTN2

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The Bundle Protocol shows great promise as a general purpose application-layer protocol for Delay-Tolerant Networks (DTNs) and has found many adopters within the research community. As an application layer protocol, a convergence layer (UDP/TCP sockets or some other domain-specific transport mechanism) is required to deliver bundles between nodes. The authors argue that a flexible convergence layer architecture that is easy to use and modify is beneficial to researchers since it enables them more easily experiment with new protocols for DTNs.