Design of extensible forwarding element architecture and its key technology verification

To offer flexible and programmable forwarding plane, we propose a solution from the perspective of system architecture. An extensible forwarding element architecture (EFEA) based on SDN is proposed, in which the core part is three layer forwarding element architecture (TLFEA). It also includes FE OS image service in SDN controller, FE OS image management system, FE OS development system. In order to verify the feasibility of scheme we proposed, we present the design of packet resolution instruction (PRI) which is based on the parsing method of extended protocol parsing tree model (EPPTM). The result of the experiment proves that the solution is feasible from the design of packet resolution instruction.