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Log Reference

AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R007

This document supports all the logs of device, including the parameters, meaning, possible causes and solution.

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UPDATE/3/CPU_FAIL(l): The signature database update failed. (SyslogId=[syslog-id], User=[username], IP=[ip-address], Module=[module], Slot=[slot-id], CPU=[cpu-id], Status=[status], Duration(s)=[duration], Reason=[reason], Suggestion=[suggestion])


Failed to update the signature database.


Parameter Name Parameter Meaning


Log ID


User name that is used to perform the update operation.

For scheduled update, SystemTimer is displayed for this parameter. If the system cannot obtain the user name, ** is displayed.


IP address of the user that performs the update operation.

If the system cannot obtain the IP address, ** is displayed.


Update module, which can be:

  • IPS-SDB: IPS signature database
  • SA-SDB: SA signature database
  • CNC: malicious domain name database

Slot ID of the engine


CPU ID of the engine


Update status, which can be:
  • local-update: local update
  • rollback: version rollback
  • restore: restoration to the factory default version
  • apply: installation of the downloaded version


Update duration, in seconds


Causes of the update failure, including:

  1. The engine is busy.
  2. The update package is invalid.
  3. The compilation failed.
  4. The engine is in compilation.
  5. The engine is abnormal.
  6. The memory is insufficient.

Suggestion for rectifying the signature database update fault, which can be:

  1. Please check the engine status.
  2. Download the upgrade file again.
  3. Use the valid SDB upgrade package.
  4. Try again later.
  5. Contact customer service engineers.
  6. Try again later.

Possible Causes

The possible cause is displayed in the reason field in the log.


  1. If the problem persists, contact Huawei technical support personnel.
Updated: 2019-05-29

Document ID: EDOC1000097209

Views: 134051

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