TPConnectionState connectionState = NA, in Class ConnectionTerminationPoint

Documentation
Indicates whether or not the CTP is involved in an active cross-connection at the CTP's rate (layer rate). The values that this attribute may take are constrained by the value of the "direction" attribute of the CTP. There is also a dependency on the value of the "tpMappingMode" attribute of the CTP.
Changes in the value of this attribute lead to a State Change notification.
Readable by NMS? Yes
Writeable by NMS? No
Invariant? No

Export Control | PublicAccess | Containment | Unspecified
Static | No | Derived | No