Congestion management method based on novel network congestion notification and rate adjustment strategy

The invention relates to the technical field of data transmission, and discloses a congestion management method based on a novel network congestion notification and rate adjustment strategy, and the method comprises the following steps: S1, constructing a flow statistical system at a receiving end for counting a receiving rate and generating a precise congestion notification data packet; s2, a receiving end judges whether to generate a precise congestion notification data packet for a specified queue pair according to statistical information of the system, and sends the precise congestion notification data packet to a specified sending end; and S3, a rate adjustment system is constructed at the sending end, a flow statistical system comprises a queue pair rate statistical module and an RDMA rate statistical module, and each RDMA network card port needs to comprise one RDMA rate statistical module. According to the invention, the receiving end incidentally carries the calculated statistical rate in the 16-byte