This object indicates the version of the PDUs used to perform
Loss Measurement.
The value is placed in the Version field of the PDU and indicates
that the PDU format used is the format defined in Y.1731 with
that version.
The exact PDUs to use are specified by this object in combination with
jnxSoamLmCfgType.
This object can only be written at row creation time and cannot be
modified once it has been created.