This read-only counter tallies frames received with errors on this adapter, being the sum of its alignment errors, FCS errors, frame-too-long errors, and internal MAC receive errors. An admin uses this as a rolled-up receive-error indicator, then checks the individual component counters when it rises to isolate the cause. For example, a rising bad-receive count that tracks closely with cpqNicIfPhysAdapterFCSErrors specifically would point to a cabling or signal quality problem rather than oversized frames.