This read-only INTEGER reports the number of small data buffers allocated for receiving packets on this port. An admin comparing this buffer allocation across ports can identify which ports have more or fewer receive resources provisioned, which matters when diagnosing why one port drops packets under load sooner than others. For example, if a specific port is dropping incoming packets under moderate load, the admin might check kxifRxCnt to see whether that port has fewer receive buffers allocated than comparable ports.