PFC storm detection and processing method

A first network node, comprising:

• at least one processor;
• a communication interface;
• and
• at least one memory coupled to the at least one processor and storing programming instructions for execution by the at least one processor to perform operations comprising:
• performing priority flow control (PFC) detection on a first port queue of a first port;
• determining that a first preset condition is met, wherein the preset condition comprises:
• detection is performed in N consecutive first time segments, when the detection is performed in each first time segment, a quantity of first PFC frames sent by the first port queue to a second network node is greater than a first threshold, and a quantity of one or more data packets received by the first port queue from the second network node is less than a second threshold, wherein the first PFC frame is used to indicate the second network node to suspend sending all data flows in the first port queue, and wherein N is a positive integer;
• and
• suspending the first port queue from sending the first PFC frame to the second network node.

A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program, and when the computer program runs on one or more processors of a computer, the computer is enabled to perform operations comprising:

• performing priority flow control (PFC) detection on a first port queue of a first port;
• determining that a first preset condition is met, wherein the first preset condition comprises:
• detection is performed in N consecutive first time segments, when the detection is performed in each first time segment, a quantity of first PFC frames sent by the first port queue to a second network node is greater than a first threshold, and a quantity of one or more data packets received by the first port queue from the second network node is less than a second threshold, wherein the first PFC frame is used to indicate the second network node to suspend sending all data flows in the first port queue, and wherein N is a positive integer;
• and
• suspending the first port queue from sending the first PFC frame to the second network node.