"Reference : RFC 2863: The Interfaces Group MIB - ifHCOutUcastPkts" . . "The total number of packets that higher-level protocols\nrequested be transmitted, and that were not addressed\nto a multicast or broadcast address at this sub-layer,\nincluding those that were discarded or not sent.\n\nDiscontinuities in the value of this counter can occur\nat re-initialization of the management system, and at\nother times as indicated by the value of\n'last-clear'." . . .