Description: Indicates the directionality of the ODUkT termination point with respect to the associated ODUk CTP. The value true(1) means that the sink part of the ODUkT TP extracts TCM data from the signal at the input to the ODUk CTP sink and the source part of the ODUkT TP inserts TCM data into the signal at the output of the ODUk CTP source. The value false(2) means that the sink part of the ODUkT TP extracts TCM data from the signal at the output of the ODUk CTP source and the source part of the ODUkT TP inserts TCM data into the signal at the input of the ODUk CTP sink. This attribute may assume either value when the corresponding instance of jnxoptIfODUkTtpPresent has the value false(2). When the value of the corresponding instance of jnxoptIfODUkTtpPresent is true(1) then the only value allowed for this attribute is true(1).