Is there any standard or convention for when a device reports a queue drop or an error also as a discard? I have seen cases where the count of output queue drops reported on an interface matches the number recorded in output discards. However, when I get input queue drops, I see zero for input discards. I have also seen cases when input error count and input discard count match. If queue drops that are also discards means something different than queue drops that are not discards, I can not find that in searching documentation. Likewise if some errors are also discards and some other errors are not discards, it would be helpful to know the difference.
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