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IPSec Reference, StarOS Release 21.5

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Book Title

IPSec Reference, StarOS Release 21.5

Chapter Title

Monitor CPU Crypto Core Utilization

Results

Updated:
November 30, 2017

Chapter: Monitor CPU Crypto Core Utilization

Monitor CPU Crypto Core Utilization

Feature Information

Summary Data

Status

New Feature

Introduced-In Release

21.2

Modified-In Release(s)

Not Applicable

Applicable Product(s)

ePDG

Applicable Platform(s)

ASR 5500

VPC-SI

VPC-DI

Default Setting

Disabled

Related CDETS ID(s)

CSCvc38683

Related Changes in This Release

Not Applicable

Related Documentation

IPSec Reference Guide

Command Line Interface Reference Guide

Revision History

Revision Details

Release

Release Date

New in this release.

21.2

April 27, 2017

Feature Description

This feature provides mechanisms to monitor the crypto-specific CPU cores using the StarOS threshold framework on the ASR 5500 (DPC, DPC2). Alarms and bulk statistics enable the crypto core utilization to be monitored. Packet drops can thus be prevented by taking preventive actions when the safe limit is exceeded. The high and low thresholds for the alarm can be configured using the threshold cpu-crypto-cores-utilization command.

For more information, refer the configuring and monitoring sections of this chapter.

Configuring Crypto Core Utilization Thresholds

Use the following configuration to set the threshold upper and lower limits, and the polling interval for crypto core utilization:

config
    threshold cpu-crypto-cores-utilization high_thresh [ clear low_thresh ]
    threshold poll cpu-crypto-cores-utilization interval duration
    end

Notes:

  • Use the threshold cpu-crypto-cores-utilization high_thresh [ clear low_thresh ] command to specify the alarm or alert thresholds for crypto core utilization.

    • The measured value is the sum of the most recent system and IRQ core usage.

    • high_thresh and low_thresh must be an integer from 0 through 100.

  • Use the threshold poll cpu-crypto-cores-utilization interval duration command to specify the polling interval after which the crypto core utilization is measured.

    • duration must be an integer from 30 through 60000.

    • Use the default threshold poll crypto-cores-utilization interval command to set the threshold polling interval to its default value.

    • Default polling interval: 300 seconds

Monitoring and Troubleshooting Crypto Core Utilization

Show Command(s) and/or Outputs

The show command(s) in this section are available in support of this feature:

show cpu

The output of the show cpu info card card_num [ cpu cpu_num ] crypto-cores will display statistics about the CPU crypto core usage:

The following is a sample output of this command:

Card 10, CPU 0:
  Status                : Active, Kernel Running, Tasks Running
  Load Average          : 0.14, 0.17, 0.13 (0.86 max)
  Total Memory          : 65536M (32768M node-0, 32768M node-1)
  Kernel Uptime         : 0D 0H 8M
  Last Reading:
    CPU Usage All       : 0.2% user, 0.1% sys, 0.0% io, 0.0% irq, 99.7% idle
      Node 0            : 0.1% user, 0.0% sys, 0.0% io, 0.0% irq, 99.8% idle
        Core 26         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
        Core 27         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
        Core 28         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
        Core 29         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
        Core 30         : 0.0% user, 0.1% sys, 0.0% io, 0.0% irq, 99.9% idle
        Core 31         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
        Core 32         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
        Core 33         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
      Node 1            : 0.2% user, 0.1% sys, 0.0% io, 0.0% irq, 99.6% idle
        Core 38         : 0.4% user, 0.2% sys, 0.0% io, 0.0% irq, 99.4% idle
        Core 39         : 0.0% user, 0.0% sys, 0.0% io, 0.1% irq, 99.9% idle
        Core 40         : 0.0% user, 0.1% sys, 0.0% io, 0.0% irq, 99.9% idle
        Core 41         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
        Core 42         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
        Core 43         : 0.1% user, 0.1% sys, 0.0% io, 0.0% irq, 99.8% idle
        Core 44         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
        Core 45         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
  5-Minute Average:
    CPU Usage All       : 0.2% user, 0.1% sys, 0.0% io, 0.0% irq, 99.7% idle
      Node 0            : 0.2% user, 0.1% sys, 0.0% io, 0.0% irq, 99.7% idle
        Core 26         : 0.0% user, 0.1% sys, 0.0% io, 0.0% irq, 99.9% idle
        Core 27         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
        Core 28         : 0.0% user, 0.1% sys, 0.0% io, 0.0% irq, 99.9% idle
        Core 29         : 0.0% user, 0.1% sys, 0.0% io, 0.0% irq, 99.9% idle
        Core 30         : 0.0% user, 0.1% sys, 0.0% io, 0.0% irq, 99.9% idle
        Core 31         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
        Core 32         : 0.0% user, 0.1% sys, 0.0% io, 0.0% irq, 99.9% idle
        Core 33         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
      Node 1            : 0.2% user, 0.1% sys, 0.0% io, 0.0% irq, 99.7% idle
        Core 38         : 0.1% user, 0.1% sys, 0.0% io, 0.0% irq, 99.7% idle
        Core 39         : 0.0% user, 0.0% sys, 0.0% io, 0.1% irq, 99.9% idle
        Core 40         : 0.2% user, 0.1% sys, 0.0% io, 0.0% irq, 99.7% idle
        Core 41         : 0.0% user, 0.1% sys, 0.0% io, 0.0% irq, 99.9% idle
        Core 42         : 0.0% user, 0.1% sys, 0.0% io, 0.0% irq, 99.9% idle
        Core 43         : 0.0% user, 0.1% sys, 0.0% io, 0.0% irq, 99.9% idle
        Core 44         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
        Core 45         : 0.0% user, 0.0% sys, 0.0% io, 0.0% irq, 100.0% idle
  Maximum/Minimum:
    CPU Usage All       : 0.4% user, 0.6% sys, 0.0% io, 0.0% irq, 99.0% idle
      Node 0            : 0.5% user, 0.8% sys, 0.0% io, 0.0% irq, 98.7% idle
        Core 26         : 0.3% user, 1.1% sys, 0.0% io, 0.0% irq, 98.6% idle
        Core 27         : 0.1% user, 0.3% sys, 0.0% io, 0.0% irq, 99.7% idle
        Core 28         : 0.1% user, 1.1% sys, 0.0% io, 0.0% irq, 98.9% idle
        Core 29         : 0.3% user, 2.6% sys, 0.0% io, 0.0% irq, 97.1% idle
        Core 30         : 0.2% user, 0.6% sys, 0.0% io, 0.0% irq, 99.2% idle
        Core 31         : 0.4% user, 0.2% sys, 0.0% io, 0.0% irq, 99.6% idle
        Core 32         : 0.3% user, 0.6% sys, 0.0% io, 0.0% irq, 99.2% idle
        Core 33         : 0.4% user, 0.1% sys, 0.0% io, 0.0% irq, 99.6% idle
      Node 1            : 0.5% user, 0.5% sys, 0.0% io, 0.0% irq, 98.9% idle
        Core 38         : 0.4% user, 1.4% sys, 0.0% io, 0.1% irq, 98.4% idle
        Core 39         : 0.7% user, 0.8% sys, 0.0% io, 0.2% irq, 98.5% idle
        Core 40         : 1.0% user, 1.6% sys, 0.0% io, 0.0% irq, 98.0% idle
        Core 41         : 0.2% user, 0.5% sys, 0.0% io, 0.0% irq, 99.3% idle
        Core 42         : 0.3% user, 0.7% sys, 0.0% io, 0.0% irq, 99.0% idle
        Core 43         : 0.2% user, 0.5% sys, 0.0% io, 0.0% irq, 99.3% idle
        Core 44         : 0.1% user, 0.1% sys, 0.0% io, 0.0% irq, 99.9% idle
        Core 45         : 0.1% user, 0.5% sys, 0.0% io, 0.0% irq, 99.4% idle

show threshold

The following fields are available in the output of the show threshold command in support of this feature:

Threshold operation model: ALARM

Configured thresholds:
        Name:             crypto-cores-utilization
        Config Scope:     SYSTEM
        Threshold:        80%
        Clear Threshold:  10%
Table 1 show threshold Command Output Descriptions

Field

Description

Threshold operation model

Indicates that the threshold operation model is alarm.

Configured thresholds:

Name

Statistics for the crypto core utilization threshold.

Config Scope

Indicates that the scope of configuration is across the system.

Threshold

Indicates the high threshold value of the crypto cores utilized, after which the alarm is generated.

Clear Threshold

Indicates the low threshold value of the crypto cores utilized, after which the alarm is cleared.

Bulk Statistics

The following bulk statistic included in the card schema support this feature.

Variable

Description

Data Type

cpucpu_no-corecore_no-coreused-crypto

Description: The percentage of resources on CPU <cpu_no> CORE <core_no> that are used for crypto operations.

cpu_no must be an integer between 0 and 2.

core_no must be an integer between 0 and 47.

Triggers: N/A

Availability: All

Type: Gauge

Float

Thresholds

The following alarms are available in support of this feature:

  • A ThreshCPUCryptoCoresUtilization alarm is generated when the crypto core utilization exceeds the configured high threshold.

  • A ThreshClearCPUCryptoCoresUtilization alarm is generated when the crypto core utilization drops below the configured low threshold.

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