Congestion flow identification method and network device

A congestion flow identification method, comprising:

• obtaining, by a network device, a queue length of a non-congestion flow queue, wherein the non-congestion flow queue comprises a data packet or description information of the data packet;
• determining, by the network device, a target output port of a target data packet when the queue length of the non-congestion flow queue is greater than or equal to a first threshold, wherein the target data packet is a data packet waiting to enter the non-congestion flow queue or a next data packet waiting to be output from the non-congestion flow queue;
• and
• when the target output port is flow-controlled and is suspended from performing sending, determining, by the network device, that a flow corresponding to the target data packet is a congestion flow.

A network device, comprising:

• at least one processor, a memory, a bus, and an input/output interface, wherein the memory stores programming instructions for execution by the at least one processor, and wherein the programming instructions instruct the at least one processor to perform operations comprising:
• obtaining a queue length of a non-congestion flow queue, wherein the non-congestion flow queue comprises a data packet or description information of the data packet;
• determining a target output port of a target data packet when the queue length of the non-congestion flow queue is greater than or equal to a first threshold, wherein the target data packet is a data packet waiting to enter the non-congestion flow queue or a next data packet waiting to be output from the non-congestion flow queue;
• and
• when the target output port is flow-controlled and is suspended from performing sending, determining that a flow corresponding to the target data packet is a congestion flow.