Advantech MIC-3369C Installationsanleitung PDF herunterladen (Seite 62)

Dialogic

System Release 6.1 CompactPCI for Windows

Release Update 62

value for some parameters and non-default values for other parameters. The

default settings for the two new QoS alarm types are:

Note: Only the fault thresholds are configurable; all other parameters must be set to

0. For information about setting the fault thresholds, see Section 1.19.2,

“Setting the Fault Thresholds”, on page 63.

c. Call gc_SetAlarmParm( ) to use the QoS parameter values set in step 1b.

2. Call gc_SetAlarmNotifyAll( ) to enable notification of all QoS alarms, or use

gc_SetAlarmConfiguration( ) to enable notification of selected QoS alarms. (QoS

monitoring for the new QoS alarms is disabled by default.)

3. Monitor QoS alarm notification events:

a. When a QoS alarm has been triggered, a GCEV_ALARM event is generated by

the system. Call the Standard Runtime Library function sr_getevttype( ) to return

the event type.

b. Use the following Global Call functions to extract further details about the alarm:

gc_GetMetaEvent( ), gc_AlarmSourceObjectID( ), gc_AlarmNumber( ),

gc_AlarmName( ).

Note: For Dialogic

IPT Boards, the system software sends a QoS alarm event

containing ALARM_STATE_ON when a fault threshold is exceeded, but does

not report a QoS event containing ALARM_STATE_OFF when the threshold

returns to the programmed level. An RTCP/RTP timeout alarm is reset either

on resumption of RTCP/RTP packets, end of RTP session, or end of call, but

no notification is sent to the application when the alarm is reset.

1.19.1.2 Implementing QoS Alarms Using Dialogic

IP Media Library API

The following steps provide guidelines for implementing QoS alarms in your application

using the Dialogic

IP Media Library API. For details on the IP Media Library functions

and data structures that are mentioned, see the Dialogic

IP Media Library API Library

Reference. In addition, the Dialogic

IP Media Library API Programming Guide describes

how QoS may be used in an application.

1. Optional steps before enabling a QoS alarm:

a. Call ipm_GetQoSThreshold( ) to retrieve the current settings of QoS parameters

on the specified IP channel.

b. If you need to change current QoS parameter values, set up the

IPM_QOS_THRESHOLD_INFO structure with desired values. This structure

contains one or more IPM_QOS_THRESHOLD_DATA structures. Note that you

must explicitly specify the value for every parameter in the

IPM_QOS_THRESHOLD_DATA structure, even if you want to use the default

QoS Type

Time

Interval (ms)

Debounce

On (ms)

Debounce

Off (ms)

Fault

Threshold

%Success

Threshold

%Fail

Threshold

QOSTYPE_

RTCPTIMEOUT

0 0 0 250(x100 msec

= 25 sec)

QOSTYPE_

RTPTIMEOUT

0 0 0 1200(x100

msec = 120

sec)

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 160 161

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