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Hello all,
Luca, one thing to consider that we’ve noticed, is that if you load the same compiled P4 logic (even if you’re bypassing and not using it), for long periods, it will eventually be in a “stale” state, and the FPGA will drop all traffic. The simplest fix is to have an alternative logic compiled (for example, the p4_only example, and an ethernet packet forwarder), and use the second as a palate cleanser when the first stops working. All you have to do is bring up the stack with the second logic, then bring it down and bring it up with the first.
In all cases of pktgen issues that we’ve encountered so far, this has been the cause and in most cases it’s the 2079 packets issue, in others, the card drops all packets, or drops at an increasing rate until 100% is dropped.
