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A network packet processing apparatus using a service function chaining and a method of controlling the same are provided. The network packet processing apparatus includes a plurality of service function modules configuring the service function chaining, each of the plurality of service function modules being one of a stateful service function module and a stateless service function module. Also the network packet processing apparatus includes an input logger and an output logger used to perform fault-recovery, and a service function forwarder module forwarding a packet to the plurality of service function modules, the input logger, and the output logger through a path specified in the packet.