Differentiated QoS routing method based on SDN park network

• Main Authors: XIAO JUNBI, CONG YUNHUAN, FU TIANQI
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a differentiated QoS (Quality of Service) routing method based on an SDN (Software Defined Network) park network, which comprises the following steps of: classifying main traffic in the network in combination with actual production and life demands and a time-sensitive network traffic classification standard; calculating K shortest communication links for each pair of end switches by using an improved K shortest path algorithm; collecting QoS (Quality of Service) link quality indexes of K shortest paths by utilizing an active measurement mode; calculating an evaluation value for each link in a weighted summation mode; links with different qualities are selected for communication for traffic with different priorities, so that a differentiated QoS routing strategy is realized, efficient and reliable operation of high-priority traffic is ensured, and meanwhile, the problem that the packet loss rate of low-priority traffic is too high is avoided; the SDN controller is utilized to issue the