[ScreenOS] How to monitor CPU utilization (in percentage) on the firewall via SNMP?

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Summary:
This article provides information on how to monitor CPU utilization (in percentage) on the firewall via SNMP.
Symptoms:
How to monitor CPU utilization (in percentage) on the firewall via SNMP.
Solution:
To monitor CPU utilization (in percentage), the following OIDs can be used:
 
  • .1.3.6.1.4.1.3224.16.1.1.0 Average System CPU utilization in percentage.

  • .1.3.6.1.4.1.3224.16.1.2.0 Last one minute CPU utilization in percentage.

  • .1.3.6.1.4.1.3224.16.1.3.0 Last Five minute CPU utilization in percentage.

  • .1.3.6.1.4.1.3224.16.1.4.0 Last Fifteen minute CPU utilization in percentage.

Actual output of CPU info from the device:
nsisg1000(M)-> get perf cpu
Average System Utilization: 2%
Last 1 minute: 7%, Last 5 minutes: 12%, Last 15 minutes: 5%
nsisg1000(M)->
The output from SNMP walk:
OID: .1.3.6.1.4.1.3224.16.1.1.0
Value: 2

OID: .1.3.6.1.4.1.3224.16.1.2.0
Value: 7

OID: .1.3.6.1.4.1.3224.16.1.3.0
Value: 12

OID: .1.3.6.1.4.1.3224.16.1.4.0
Value: 5
Modification History:
2019-05-23: Content reviewed for accuracy.  No changes.
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