Why are a large number of packets discarded on an inbound interface of an S series modular switch

S9300 series switches running V100R001 and V100R002 send protocol packets to the CPU for processing and discard the packets at the hardware layer. The number of these discarded protocol packets is counted on inbound interfaces, which does not comply with RFC 2863. For switches running V100R002, patches in V100R002SPH009 and later versions can be installed to fix this problem. According to RFC 2863 and industry norms, only packets discarded due to buffer overflows is counted as discarded packets.

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