3.5.5.2.2.6 Connection Disconnected
When a CONNTYPE_TXUSER_ENLISTMENT (section 2.2.10.2.2) connection is disconnected, the resource manager MUST perform the following actions:
If the connection state is either Awaiting Enlistment Response, Active, or Preparing For Transaction Commit:
Send an Abort request to the higher-layer business logic.
Otherwise, the event MUST be processed as specified in section 3.1.8.3.