Advantech MIC-3369C Guía de instalación descargar pdf (Pagina 35)

Dialogic

System Release 6.1 CompactPCI for Windows

Release Update 35

Event handling in IPML for the network failure alarm is identical to that for QoS alarm

events, except that the handler needs to distinguish between alarm-on and alarm-off

events. The event that is generated when a network failure is detected is of type

IPMEV_QOS_ALARM, and it contains associated data of type

IPM_QOS_ALARM_DATA. The eQoSType field of this data structure is

QOSTYPE_NETWORKFAILURE, and the eAlarmState may be either

ALARM_STATE_ON or ALARM_STATE_OFF.

Global Call Library Considerations

To enable a Global Call application to receive media network failure alarm events, the

application must perform the following general steps:

• Explicitly open and obtain the Global Call line device handle for the IPM board device

with gc_OpenEx( ).

Note: It is not necessary to enable the EVT_NETWORKFAILURE event for the

board device (using ipm_EnableEvents( )). IPML alarm event setting is

taken care of automatically by the software, so the application should not

enable it explicitly.

• Register the device handle (from the open operation) with GCAMS using

gc_SetAlarmNotifyAll( ). This registration uses the wildcard alarm source object

(ASO) ID, ALARM_SOURCE_ID_NETWORK_ID, because the IP Call Control library

ASO ID is not known at this point.

When a media network failure alarm event occurs, the IPML library generates an

IPMEV_QOS_ALARM event, which contains data that identifies the alarm as type

QOSTYPE_NETWORKFAILURE. This event is processed by GCAMS, which generates a

GCEV_ALARM event. When this event is received, the alarm number

QOSTYPE_NETWORKFAILURE, the alarm name (the string “Network Failure”), the

alarm state, the ASO ID, and the ASO name can be retrieved using standard Global Call

alarm APIs.

Notes:1. The IPML ASO will pass the event to GCAMS and consume it, not reporting it directly

via IPML library event.

2. By the same token, Global Call will intercept the IPML EVT_NETWORKFAILURE event,

consume it and report it as a GCAMS alarm event.

Media LAN condition prior to application startup or alarm condition enablement is

reported only in the case of a network disruption (alarm-on); that is, this notification is only

for a disrupted network and not for a healthy network. Subsequent alarm events will occur

as they normally would upon a change in the alarm state.

1.8.2 Documentation

The online bookshelf provided with Dialogic

System Release 6.1 CompactPCI for

Windows

contains information about all system release features including features for

application development, configuration, administration, and diagnostics.

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