Identifies the multipoint polling state of the tributary.  The
 default is AUTOMATIC.  There are five possible states:

     AUTOMATIC	The tributary's state varies according to the
 		operation of the polling algorithm.

     ACTIVE	The tributary is locked in the ACTIVE state.

     INACTIVE	The tributary is locked in the INACTIVE state.

     DYING	The tributary is locked in the DYING state.

     DEAD	The tributary is locked in the DEAD state.