Advantech MIC-3369C Przewodnik Instalacji Pobierz pdf (Strona 34)

Dialogic

System Release 6.1 CompactPCI for Windows

Release Update 34

Note: The EVT_NETWORKFAILURE1 event type, which is supported on IPT Boards, is not

supported on DM/IP Boards since they have only one network interface. (For information

about EVT_NETWORKFAILURE1, see Section 1.25, “Modified Alarm Events for Media

LAN Disconnect”, on page 74 of this Release Update.)

1.8.1 Feature Description

Note: This feature is already documented in the Dialogic

IP Media Library API Programming

Guide and Dialogic

Global Call IP Technology Guide; in particular, refer to:

• Dialogic

IP Media Library API Programming Guide: “Network Failure Alarm” section

in the Quality of Service (QoS) Alarms chapter

• Dialogic

Global Call IP Technology Guide: “Media LAN Disconnection Alarm” section

in the IP-Specific Operations chapter

For convenience, information from these sections is repeated here.

A board-level alarm notifies the application when the board’s connection to the LAN has

been disrupted, for example if the Ethernet cable has been disconnected or if there has

been some failure in a hub or switch. When the alarm is enabled, the board checks the

status of the network connection at 1-second intervals. If the board finds that the

connection is disrupted, it generates a single network failure event to notify the IPML

application. When a subsequent network status check indicates that the network

connection has been restored, a single network failure alarm-off IPML event is generated.

Both the alarm-on (failure) and alarm-off (restoration) events may also be reported to the

Global Call library via GCAMS.

Note the following differences between the network failure alarm and other QoS alarms:

• The network failure alarm is a board-level alarm while most other QoS alarms operate

at the channel device level.

• There are no threshold parameters associated with the network failure alarm as there

are with other QoS alarms.

• The network failure alarm cannot be reset via ipm_ResetQoSAlarmStatus( ).

• The status of the network failure alarm cannot be queried via

ipm_GetQoSAlarmStatus( ), and the status is not reported via

ipm_GetSessionInfo( ).

• The network failure alarm is only reported via asynchronous notification events.

IP Media Library Considerations

The application registers for notification of the network failure alarm in much the same

way as a QoS alarm, by calling ipm_EnableEvents( ), and deregisters via

ipm_DisableEvents( ), and so a separate function call must be used to enable or disable

the network failure alarm event using the board’s device handle and

EVT_NETWORKFAILURE event type. The function call will fail if a channel device handle

is specified.

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 160 161

Komentarze do niniejszej Instrukcji

Brak uwag

Advantech MIC-3369C Przewodnik Instalacji Strona 34

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Procesory Advantech MIC-3369C