xcmCommsStackXrefIfIndex 1.3.6.1.4.1.253.8.61.7.2.1.7

The value of 'ifIndex' corresponding to the directly associated conceptual row in the 'ifTable' (Interfaces Group) of the MIB-II (RFC 1213), or zero if the position of this stack layer is NOT 'bottom' (ie, this stack layer does NOT represent a physical 'network interface'). Usage: This is partially a convenience object, since given the value of 'hrDeviceIndex' for an 'hrDeviceNetwork' type device, the corresponding 'ifIndex' is found in the mandatory entry in the 'hrNetworkTable'. However, note that for 'hrDeviceModem', 'hrDeviceSerialPort', and 'hrDeviceParallelPort' devices, the 'xcmCommsStackXrefIfIndex' object is a NECESSITY for support of this communications engine MIB.