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Overview

The collection of historical data and Threshold Crossing Alerts (TCA) provides a facility for understanding the long-term utilization and call traffic characteristics of the SBC 1000/2000. The collection and analysis of this data over an extended period of time produces a clearer picture of how the node is being utilized and provides information necessary to properly modify its capacity. The TCA Thresholds feature allows the administrator to configure thresholds for monitoring real-time statistics. An alarm is raised when a user defined threshold for a particular attribute is crossed.

Statistics

The node collects the statistics listed in the table below. Each statistic has user configurable Raise and Clear alarm thresholds. An alarm is raised when the Raise threshold is exceeded, and conversely the alarm is cleared when the statistical value drops below the Clear threshold

Statistic

Minimum Threshold Range

Maximum Threshold Range

Polling Interval

Collection IntervalHistory Range

Maximum Number of Collections

Signaling Group Channel Usage (peak)

0 (Number of channel per Signaling Group minus 1)

1 - Number of channels per Signaling Group

1 min

1 hr1 day

25

SIP Call license Usage

0 (Number of licenses minus 1)

600

1 min

1 hr1 day

25

SIP Registration

0 (Configured registrations minus 1)

500

10 mins

1 hr1 day

25

DSP Usage (peak)

0%

100%

1 min

1 hr1 day

25

CPU Usage

0%

100%

10 secs

1 min4 hrs

241

Memory Usage

0%

100%

10 secs

1 min4 hrs

241

File Descriptor Usage0400010 secs1 min4 hrs241
1 Minute Load Average1 (increments of 100% CPU usage)510 secs1 min4 hrs241
5 Minute Load Average1510 secs
1 min4 hrs241
15 Minute Load Average1510 secs
1 min4 hrs241
Temporary Partition Usage0%100%10 secs
1 min4 hrs241
Logging Partition Usage (SBC2000 Only)0%100%10 secs
1 min4 hrs241

Logging Partition Usage Applicability

The Logging Partition Usage statistics and its related alarms and events are only applicable to the SBC2000.

  • Statistic. The type of statistic collected.
  • Maximum/Minimum Threshold Range. The minimum and maximum threshold ranges used before an alarm is raised or cleared respectively.
  • Polling Interval. The interval at which the system polls the statistic to see if it has crossed a threshold, and subsequently raises or clears an alarm if needed.
  • Collection Interval. The interval at which the system collects data for the statistic.
  • History Range. The amount of time the collected statistic is retained.
  • Maximum number of Collections. The maximum number of collections that can be stored at any period of time. The collection with ID1 is the current collection interval, and the collections with IDs 2 -<max> are the historical collections.

 

Alarms and Events

TCA Type

Alarm (ID)

Event (ID)

Signaling Group Channel Usage

TCA Threshold Exceeded

TCA Threshold Cleared

SIP Call license Usage

TCA Threshold Exceeded

TCA Threshold Cleared

SIP Registration

TCA Threshold Exceeded

TCA Threshold Cleared

DSP Usage

TCA Threshold Exceeded

TCA Threshold Cleared

CPU Usage

TCA Threshold Exceeded

TCA Threshold Cleared

Memory Usage

TCA Threshold Exceeded

TCA Threshold Cleared

File Descriptor UsageTCA Threshold Exceeded

TCA Threshold Cleared

1 Minute Load AverageTCA Threshold Exceeded

TCA Threshold Cleared

5 Minute Load AverageTCA Threshold Exceeded

TCA Threshold Cleared

15 Minute Load AverageTCA Threshold Exceeded

TCA Threshold Cleared

Temporary Partition UsageTCA Threshold Exceeded

TCA Threshold Cleared

Logging Partition UsageTCA Threshold Exceeded

TCA Threshold Cleared

Retrieving Data

Statistics data are available through the REST interface. For more information about using the REST interface see the SBC 1000/2000 REST Documentation.

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