Design and Implementation of Network Monitoring and Scheduling Architecture Based on P4

Network monitoring(1) is an important part of network operation. Administrators can use these monitoring data to learn about the network operation status, user behavior, network security status, and traffic development trends. Although various traffic monitoring technologies have been born so far, software-defined networking (SDN) provides more convenience for traffic monitoring and it is easier to introduce new functionalities. However, most exiting methods achieve network status monitoring through extra the probe packets, polling, etc., making the network monitoring costs too much. In this work, we propose a network monitoring and scheduling architecture based on P4 which monitors and visualizes the network state information. We evaluate the proposed scheme based on INT. Preliminary results show that the congestion can be avoided by our scheduling method in the experimental settings.