Ingress exception counters

[m0tash]

Hey, all!

Does anyone know something about FPGA Exception global counters? Especially these counters:

flow_fpga_rcv_igr_INTFNF
flow_fpga_rcv_igr_IPFRAGMENT
flow_fpga_rcv_igr_PROTO

I see packet drops on FPGA showed by counter flow_fpga_ingress_exception_err. Also the counter has the same rate as flow_fpga_rcv_igr_INTFNF. I'd like to understand what kind of traffic hits such behavior.

Thanks