SilentKnight VisorAlarm Plus 2U - Manual (Page 57)

VISOR ALARM – Configuration
III - 55
Doc.DM374-I
Ver.1.0
ARLY-1+
ARLY-1+09/02/03 10:06:20 ARLY.001 UDP Rx frm sz 52
09/02/03 10:06:20 ARLY.019 STOR save, 499 free
09/02/03 10:06:20 ARLY.016 ALARM accnt 101234
09/02/03 10:06:20 ARLY.002 UDP Tx frm sz 48
ARLY-1+list alarm information
09/02/03 10:06:20- 101234 1234181131010158
ARLY-1+
h) Synchronizing Configurations
With the network backup, the changes in the configuration, either by dynamically registering new
mIP/IPDACT devices or by configuration pattern changes performed through the console, are
synchronized between the main and the backup receivers. The polling-sync-time parameter
specifies the frequency of the synchronization process.
The synchronization procedure is as follows:
•
The POLL-TIME parameter defines the poll time between the main and the backup
VisorALARM PLUS 2U receivers.
•
When there is any change in a configuration pattern or a mIP/IPDACT has been added or
removed in the main receiver, a supervision protocol between main and backup is used to
indicate that a change in configuration has been produced. The average time that the main
spends to signal the change to the backup receiver is:
2
15 ] [ TIME POLL T E
− + =
•
When the backup VisorALARM PLUS 2U receives the indication of a change in
configuration, it establishes a TCP connection with the main receiver through which the
changes in the configurations are exchanged.
•
When the change in the configuration has been made in the backup, the average time to start
the synchronization is:
2
TIME - SYNC - POLLING ] [
=
T E
•
In the same way than before, the backup receiver establishes a TCP connection with the main
through which the changes in the configurations are exchanged.
•
The synchronization process is also started when:
a. A receiver is powered up.
b. When there is a supervision failure between the equipments.
•
The synchronization of configurations is only performed between the main and backup
receivers. The maintenance receiver is not included in the process and it does not get
synchronized automatically.
•
While configurations are being updated it is not possible to change the equipments
configuration either through console or through mIP/IPDACT registrations. It is strongly
recommended that you do not switch off the equipment during this process because it could
leave the equipment out of service.
•
The changes in configurations are detected through time stamps. So it is mandatory that both
the main and the backup receivers have the same time base. Therefore the NTP protocol must
be correctly configured in both of them. In any other case the synchronization process will
not be possible.
In cases regarding the network backup, the changes executed either in the dynamic configuration or in
the static, are synchronized between the two VisorALARM PLUS 2U, main and backup. As