ROUTING CONTROL METHOD IN SOFTWARE DEFINED NETWORKING AND OPENFLOW CONTROLLER

摘要

The present invention discloses a routing control method in software defined networking and an OpenFlow controller. The method includes: receiving, by an OpenFlow controller OFC, a data packet reported by an OpenFlow switch OFS; determining, by the OFC according to a key value stored in a cache, whether the data packet is a repeated packet, where the key value includes a data packet feature value; and if the data packet is a repeated packet, delivering, by the OFC, the data packet to the OFS, and instructing the OFS to match a stored flow table to process the data packet or instructing the OFS to transmit the data packet through a corresponding port; or if the data packet is not a repeated packet, calculating, by the OFC, a routing policy for the data packet, and delivering a flow table to the OFS according to the routing policy, so that the OFS processes the data packet according to the delivered flow table. In the method according to embodiments of the present invention, if the data packet is a repeated packet, the data packet is directly delivered to the OFS, and the OFS is instructed to match a stored flow table to process the data packet. In this way, for repeated packets, the OFC may calculate a routing policy only once, thereby reducing a calculation amount of the OFC.