Routing control method in software defined networking and OpenFlow controller

An OpenFlow controller, comprising:

• a processor;
• a cache;
• and
• a memory configured to store one or more execution instructions and coupled to the processor, wherein the processor is configured to invoke the execution instruction in the memory causing the OpenFlow controller to:
• receive a first data packet reported by an OpenFlow switch (OFS),
• compare a feature value of the first data packet with a data packet feature value in the key value, wherein the key value comprises the data packet feature value and a processing moment value,
• determine that the feature value of the first data packet is the same as the data packet feature value in the key value,
• determine a time interval between a current moment and the processing moment value in the key value is less than or equal to a preset time value, wherein the preset time value is a time value less than or equal to a flow table valid time, and
• instruct the OFS to match a stored flow table to process the first data packet.