Encapsulation of OpenFlow over Delay-Tolerant Networking (DTN) Using the Bundle Protocol

This document specifies a method for carrying OpenFlow messages over Delay-Tolerant Networking (DTN) using the Bundle Protocol (BP). The method encapsulates OpenFlow messages as BP payloads and defines the mapping between OpenFlow messages and Bundles, the payload format, and addressing and multiplexing considerations based on DTN Endpoint Identifiers (EIDs). This document further discusses conditions that may occur on intermittently connected or high-latency links, including fragmentation, duplicate delivery, out-of-order arrival, and expiration, and defines corresponding message handling rules. These rules enable the transmission of OpenFlow messages across DTN without modifying the semantics of the OpenFlow protocol.