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.