This object specifies the type of test pattern to be
sent in the LM frame Test TLV when the size of LM PDU is
determined by the jnxSoamLmFrameSize object and
jnxSoamLmTestTlvIncluded is 'true'. If the frame size object
does not define the LM frame size or jnxSoamLmTestTlvIncluded
is 'false' the value of this object is ignored.
This object can only be written at row creation time and cannot be
modified once it has been created.