Abstract: The present disclosure relates to priority flow control (PFC) storm detection and processing methods. In one example method, a first network node performs PFC detection on a first port queue of a first port, and determines that a first preset condition is met. The first preset condition includes: 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. The first PFC frame is used to indicate the second network node to suspend sending all data flows in the first port queue, and N is a positive integer.

Abstract: A compound represented by formula I, or a pharmaceutically acceptable salt thereof, or a stereoisomer thereof, or a tautomer thereof, or a hydrate thereof, or a solvate thereof, or a metabolite thereof, or a prodrug thereof. R1-R5 and group A are as defined in the description. The compound is used for the preparation of drugs for treating diseases caused by KRAS G12C mutation and for treating and/or preventing cancers.