The Reseach Of Speturm Flexible Optical Network Resource Scheduling Method Based On Openflow

With the rapid development of the dramatic increase in demand for information and the Internet, the development of the network is facing high capacity, flexibility, energy efficiency of the three aspects of the challenge.In this paper, I will describe, in three aspects, the optical network control method architecture spectrum resource scheduling, resource scheduling experimental platform to study.(1)Recalling the intelligent optical network ASON to PCE from the SDON’s evolution, and comparative analysis of different advantages between SDON with traditional optical network control method. At last, I will describe SDON+PCE control method and its advantages.(2)About Spectrum resource scheduling methods, I will describe resource scheduling method based on business classification and the method detail processing. This method can reduce spectral fragmentation and improve spectrum utilization.(3) About Experimental platform, the paper describes the experiment based on OpenFlow spectrum resource scheduling platform structure and gives a detailed OpenFlow protocol extension process. Building path experiment can confirm the correctness of the protocol extensions, and optical network includes nine nodes, the delays of building path is less than1s.