Power Communication Optical Network Traffic Grooming Algorithm Based on Differentiated Services

With the development of smart grid, the data service of large particle and IP in power communication network has been increasing, which has put forward a great challenge to the existing power communication optical network based on MSTP (Multi-Service Transfer Platform) technology and WDM (Wavelength Division Multiplexing) technology. Considering the difference of services in the power communication optical network, this paper proposed a traffic grooming algorithm based on differentiated services. The algorithm is based on the layered exchange virtual topology model, and dynamically updates the link cost according to the current available resources of the network. According to the level of groomed service, we use the K shortest path algorithm based on the O/E/O (Optical/Electrical/Optical) conversion limit to determine the alternative path set and select optimization factors through the traffic grooming path. Under the condition of satisfying the O/E/O conversion restrictions, guide the service to the path which meets its transmission delay requirements and has smaller number of O/E/O transitions, coordinate the distribution of network resources among different levels of service. Introduction With the fast and efficient construction of smart grid, the communication network of electric power system has been proposed higher expectations. According to the characteristics of large granularity and IP in the power communication service, optical network traffic grooming technology get into people's horizons when use the advanced optical network technology to carry out the power communications service. The traffic grooming technology converges multiple low-speed traffic streams to one wavelength under the background of a sharp increase in the single wavelength capacity, to realize the high speed data transmission technology, we can achieve the goal of minimizing the use of terminal apparatus and optical/electrical switching equipment through this technical means, therefore it is of great significance to do the research in the power communication optical network traffic grooming field. 47 Advances in Computer Science Research (ACRS), volume 54 International Conference on Computer Networks and Communication Technology (CNCT2016)