********* THIS OBJECT IS OBSOLETE ********* The state of a port on a 2 port bridge is really the state of the bridge itself. Management is only allowed to set this object to 'stpDisabled' or 'stpBlocking'. Setting the object to 'stpDisabled' will turn off spanning tree only if the state is not 'stpBlocking' (to prevent loops). Setting the object to 'stpBlocking' will turn on spanning tree only if it was previously disabled. see: IEEE 802.1(d) 6.8.2.1.3(2), 4.4, 4.5.5.2