Log Settings

You can select the events to be logged by severity level. Each log message has a severity level concatenated with a dash (-) on each side. For example, the log message "SYSTEM-5-STARTUP: … " has a severity level of 5, meaning Notice.

The event severity levels are listed from the highest severity to the lowest severity, as follows:

  • Emergency—System is not usable.

  • Alert—Action is needed.

  • Critical—System is in a critical condition.

  • Error—System is in error condition.

  • Warning—System warning has occurred.

  • Notice—System is functioning properly, but a system notice has occurred.

  • Informational—Device information.

  • Debug—Detailed information about an event.

Selecting a severity level to be stored in a log causes all of the higher severity events to be automatically stored in the log. Lower severity events are not stored in the log. For example, if Warning is selected, all severity levels that are Warning and higher are stored in the log (Emergency, Alert, Critical, Error, and Warning). No events with severity level below Warning are stored (Notice, Informational, and Debug).

To set global log parameters, complete the following steps:

Procedure

Step 1

Click Administration > System Log > Log Settings.

Step 2

Enter the parameters.

Logging

Select to enable message logging.

Syslog Aggregator

Select the aggregation of SYSLOG messages and traps. If enabled, identical and contiguous SYSLOG messages and traps are aggregated over the specified Max. Aggregation Time and sent in a single message. The aggregated messages are sent in the order of their arrival. Each message states the number of times it was aggregated.

Max. Aggregation Time

Enter the interval of time that SYSLOG messages are aggregated.

RAM Memory Logging

Select the severity levels of the messages to be logged to the RAM.

Flash Memory Logging

Select the severity levels of the messages to be logged to the Flash memory.
Step 3

Click Apply. The Running Configuration file is updated.