Flow monitoring method, system and equipment based on strict priority

The invention belongs to the technical field of traffic supervision, and discloses a traffic supervision method, system and device based on strict priority, and the traffic supervision method based on strict priority comprises the steps: initializing token bucket algorithm parameters, and building a mapping table; updating token bucket parameters, and generating a service sending level; reading a to-be-supervised data frame, and extracting a priority; judging whether the priority is not lower than a service sending level or not; if yes, outputting the data frame, and if not, discarding the data frame. According to the method, priority services are corresponding in a mode of dividing multiple levels of thresholds, and flexible expansion can be realized according to specific requirements; the method is realized by adopting a single token bucket algorithm, does not need to additionally consume storage resources to store data frames, and is simple in structure and less in occupied resources; the method is suitabl