Alarm Thresholds

Alarm thresholds set the lower limits of an alarm level. When the severity of an alarm (measured by the percentage of a device type that is faulted or unavailable) exceeds an alarm threshold, a new alarm level is reached.

Default alarm thresholds are shown in the table below.

NOTE: The value ">0" indicates "greater than 0%".

Default Alarm Thresholds (% faulted or unavailable)

Alarm Category

Minor Alarm

Major Alarm

Critical Alarm

CESID

>0  

--

--

Check Bootrom

100

--

--

Check FPGA

100

--

--

Check MSP430

100

--

--

CP Applications

>0  

--

--

CP Channels

10

25

--

CP Devices

>0

100

--

Database Status

--

>0

--

Digital Links

--

>0

--

DSP Card Status

1

--

100

DSP Status

1

--

100

E2T

--

>0

--

Fans

50

100

--

FSK Generator

>0

25

100

Gateway Trunks

>10

>50

100

I2C Failure

100

100

--

ICP Comms Card

>0

25

100

Inactive Boot

--

100

--

License Violation (see Note 1)

N/A

N/A

N/A

Lines

>0

20

100

CC Memory Avail

--

>0

--

SysMem Used (MB) (see Note 2)

If the amount of free system memory is less than 60 MB, the system raises a minor alarm and generates a warning maintenance log.

If the amount of free system memory is less than 45 MB, the system raises a major alarm and generates a warning maintenance log.

If the amount of free system memory is less than 35 MB, the system raises a major alarm, generates a warning maintenance log, and schedules resource recovery reboot if programmed (usually set to happen around 2 AM).

If the amount of free system memory is less than 25 MB, the system raises a critical alarm and initiates immediate system reboot.

MG Comms

--

100

--

MNMS Indication

--

>0

--

MSP430

100

--

--

NETSYNC Source

>0

--

--

Network Gateway

--

>0

--

PER MSG Link

--

>0

100

PER Channels

10

25

100

POST Memory Faults

--

1

--

One PSU

--

100

--

Two PSU (see Note 3)

50

100

--

Receivers

>0

25

100

RAID Hard Drive

--

50

100

SDS Sharing (see Note 4)

>100

>1000

--

Security

--

>0

--

SFT Zones

--

>0

100

SIP Link

10

50

100

SYSID Mismatch

--

>0

--

T38 Load Fail

100

100

--

T.38 Licenses

>0

--

--

TDM Clock

50

100

--

Temperature (see Note 5)

--

--

100

Trunks

>0

10

100

VM Port Status

1

--

--

NOTES

  1. Alarm thresholds cannot be set or displayed for alarms that originate in "License Violation" events. These alarms escalate in severity if the underlying event is left unresolved. For details, see License Violation Handling.

  2. Threshold percentage is calculated as the amount of free system memory—i.e., 60MB, 45MB, 35MB, 25MB— divided by total amount of system memory installed. For example, a minor alarm on a system with 1G of memory represents a threshold percentage of ~6%.

  3. The Two PSU alarm may be cleared on a reboot. After the reboot, you must check the logs or the PSU LEDs to identify which PSU failed.

  4. SDS Sharing alarm thresholds are hardcoded (fixed) at the values shown.

  5. A major alarm is raised if the controller temperature exceeds 55 degrees Celsius. After the temperature in the controller drops below 50 degrees Celsius, the alarm is cleared.