This field reports the number of out of range packets transmitted on the interface, exposed here as cienaCesPmExtendedTxRxTotalStatsBinTxLOutRangePkts. On this Ciena CES port's PM data, this fires when a frame's length field held a value outside the legal range for the encoding in use before it was transmitted out this port, again pointing at a locally-malformed frame rather than a wire issue; and this is the running grand-total counter for the extended Tx/Rx PM group, tallied since the bin's own StartTime (in practice since the PM instance was created or last reset), so treat it as a lifetime tally rather than a per-interval number. For example, a healthy port would sit at 0 for out-of-range-length frames in this bin; even 35 is enough to warrant a look, since this class of counter isn't supposed to move under normal operation.