ACTIVE QUEUE MANAGEMENT METHOD FOR NETWORK DEVICE AND NETWORK DEVICE

This application discloses an active queue management method for a network device and the network device. The method may be applied to the field of data transmission, and includes: The network device calculates an idle forwarding capability (for example, a credit counter CC) of a target egress queue or a target egress port on the network device, where the idle forwarding capability represents a difference between an upper limit of a data forwarding amount of the target egress queue or the target egress port and a current actual forwarding amount. Then, the network device obtains a first packet carrying an adjustment request, and when the first packet does not have a preset mark, the network device obtains a decision result based on the idle forwarding capability and the adjustment request, and obtains a second packet by including the decision result in the first packet. In embodiments of this application, a transmitting device adjusts a sending window/rate in different manners based on different decision results. In addition, a new AQM algorithm provided in this application may decouple a queue depth on the network device from a quantity of flows on a bottleneck link, so that the queue depth on the network device can be user-defined.