GatesAir Intraplex NetXpress, Installation And Operation Manual

Page: 38 / 163

Intraplex NetXpress IP Multiplexer 2—Functional Design
Version 3.05
2-22 GatesAir, Inc.
Intraplex Products
the new NIM-1 module. It can also be backed up easily to the server using the same process, only in
reverse order. Restored configuration takes effect when the NIM-1 is rebooted. Restoring configuration
for a redundant NIM system follows a similar process.
2.15 Fault Detection and Reporting
With the use of SNMP traps, the NetXpress system has the ability to detect and report on a number of
alarm conditions.
2.15.1 Alarm Hierarchy
The NetXpress system has major and minor alarms. A major alarm is a fault that has a direct effect on
service, such as a component failure disrupting the delivery or reception of data. A minor alarm is a
fault that has no effect on service. This includes all other errors detected which do not affect
NetXpress operation.
The NetXpress system is also equipped with an alarm cutoff (ACO) device. The ACO is a momentary
push-button switch that can be pressed once to cut the external contacts and pressed a second time
to re-arm the external contacts.
System alarm states are visible in the form of colored lights on the front panel of the NetXpress power
supply modules and on the NetXpress Home page (Section 4.4.1 –
Start at NetXpress Home Page ). A
red light indicates a major shelf alarm. A yellow light indicates a minor shelf alarm. A green light
indicates no alarm condition exists.
2.15.2 Alarm History
Current alarms and alarm history can be reviewed from the NetXpress Home page. Go to Faults |
Alarm Table to display the Current Alarms screen or Faults | Alarm History to display the Alarm
History screen. Both screens contain this information:
● A list of alarms
● The dates and times the alarms occurred
● The severity of the alarms
● A description of each alarm occurrence
For the purpose of troubleshooting and future reference, alarm history in the NetXpress system can
also be off-loaded to a text file.
2.15.3 SNMP Traps Use for Fault Reporting
The NetXpress system uses SNMP traps to report system faults, stateful events and informational
events. Stateful events are considered ON/OFF alarm events. Informational events are non-alarm,
one-time-only events.
Equipment-related system events indicate a failure of the hardware on the NIM-1 or in the NetXpress
shelf. Processing-related system events indicate a failure was detected in software processing.
Facility-related system events indicate a failure occurred with one of the operation interfaces.
The available list of SNMP traps changes with each software version. The MIB supplied with your
version of NIM-1 application software gives a list of available SNMP traps.