hpnicfPexPhyPortNeighborEntIndex 1.3.6.1.4.1.11.2.14.11.15.2.129.2.2.1.3

Entity index of a physical port that connects the PEX to the parent device. This value is identical to entPhysicalIndex in ENTITY-MIB. A value of zero indicates that the physical port is not bound to any PEX port or is not up.