The probe receives alarms events from ITM-NM/OMS workstations using the XMC interface.
The XMC interface is a software interface on ITM-NM/OMS workstations that allows communication with Netcool/OMNIbus. The XMC interface and the Probe for Alcatel-Lucent ITM-NM/OMS communicate through a TCP/IP connection.
The XMC interface provides for a unidirectional transfer of alarm data from the ITM-NM/OMS to the Probe for Alcatel-Lucent ITM-NM/OMS. When the probe logs in to the interface a session starts. All current active alarms in the ITM-NM/OMS are transferred to the probe by means of a synchronization procedure. Subsequent alarms are forwarded as they occur. Alarm and alarm-clears are supported.
A heartbeat message is sent by the ITM-NM/OMS to allow monitoring of the communication link. A session is terminated by (voluntarily or involuntarily) disconnection of the TCP/IP communication link.
Alarms are sent once, and are not re-transmitted. Re-transmission of alarms may occur because of synchronization after recovery from failure. Threshold Crossing Alert data (TCAs) are not forwarded through the XMC interface. The XMC interface provides no mechanisms to acknowledge alarms.
XMC operational states
The Probe for Alcatel-Lucent ITM-NM/OMS operates in the following states:
The following sections describe the process sequence of the probe through each of the states. When the probe starts, it reads the rules and properties files, and then enters the Login state.