Configuring Log Severity for Individual and Systemwide Logs

You can change the severity setting for individual logs and the systemwide value.

When working with log severities, keep the following in mind:

Example

The following example demonstrates the effects of event category state in regard to using systemwide commands:

  1. In Configuration mode and having made no changes to the severity settings of any event categories, view the log configuration:
    host1(config)#run show log config
        log destination console severity WARNING
        log destination nv-file severity CRITICAL
        log destination syslog 10.10.4.240 facility 7 severity DEBUG
        no log engineering
        log fields timestamp instance no-calling-task
        no log here
    Warning: Logging to this terminal is disabled
        no log severity
          category         severity   verbosity   filters   notes
    --------------------   --------   ---------   -------   -----
    aaaAtm1483Cfg          ERROR      low
    aaaEngineGeneral       ERROR      low
    aaaServerGeneral       ERROR      low
    aaaUserAccess          ERROR      low
    addressServerGeneral   ERROR      low
    ar1AaaServerGeneral    ERROR      low
    atm                    ERROR      low
    atm1483                ERROR      low
    atmAal5                ERROR      low 

    Notice that the atm event category has a default severity of Error.

  2. Change all event categories to Warning, systemwide, and view the log configuration:
    host1(config)#log severity warning
    host1(config)#run show log config
        log destination console severity WARNING
        log destination nv-file severity CRITICAL
        log destination syslog 10.10.4.240 facility 7 severity DEBUG
        no log engineering
        log fields timestamp instance no-calling-task
        no log here
    Warning: Logging to this terminal is disabled
        log severity WARNING
          category         severity   verbosity   filters   notes
    --------------------   --------   ---------   -------   -----
    aaaAtm1483Cfg          WARNING    low                   1
    aaaEngineGeneral       WARNING    low                   1
    aaaServerGeneral       WARNING    low                   1
    aaaUserAccess          WARNING    low                   1
    addressServerGeneral   WARNING    low                   1
    ar1AaaServerGeneral    WARNING    low                   1
    atm                    WARNING    low                   1
    atm1483                WARNING    low                   1
    atmAal5                WARNING    low                   1 
  3. Change the atm category to have a log severity of Emergency and view the log configuration:
    host1(config)#log severity emergency atm
    host1(config)#run show log config
        log destination console severity WARNING
        log destination nv-file severity CRITICAL
        log destination syslog 10.10.4.240 facility 7 severity DEBUG
        no log engineering
        log fields timestamp instance no-calling-task
        no log here
    Warning: Logging to this terminal is disabled
        log severity WARNING
    category               severity   verbosity   filters   notes
    --------------------   --------   ---------   -------   -----
    aaaAtm1483Cfg          WARNING     low                   1
    aaaEngineGeneral       WARNING     low                   1
    aaaServerGeneral       WARNING     low                   1
    aaaUserAccess          WARNING     low                   1
    addressServerGeneral   WARNING     low                   1
    ar1AaaServerGeneral    WARNING     low                   1
    atm                    EMERGENCY   low                   2
    atm1483                WARNING     low                   1
    atmAal5                WARNING     low                   1 
  4. Change all event categories to Alert, systemwide, and view the log configuration:
    host1(config)#log severity alert
    host1(config)#run show log config
        log destination console severity WARNING
        log destination nv-file severity CRITICAL
        log destination syslog 10.10.4.240 facility 7 severity DEBUG
        no log engineering
        log fields timestamp instance no-calling-task
        no log here
    Warning: Logging to this terminal is disabled
        log severity ALERT
    category               severity   verbosity   filters   notes
    --------------------   --------   ---------   -------   -----
    aaaAtm1483Cfg          ALERT       low                   1
    aaaEngineGeneral       ALERT       low                   1
    aaaServerGeneral       ALERT       low                   1
    aaaUserAccess          ALERT       low                   1
    addressServerGeneral   ALERT       low                   1
    ar1AaaServerGeneral    ALERT       low                   1
    atm                    EMERGENCY   low                   2
    atm1483                ALERT       low                   1
    atmAal5                ALERT       low                   1 

    Notice that the atm event category that you individually assigned in Step 3 does not change.

  5. Turn off log notification, systemwide, and view the log configuration:
    host1(config)#log severity off
    host1(config)#run show log config
        log destination console severity WARNING
        log destination nv-file severity CRITICAL
        log destination syslog 10.10.4.240 facility 7 severity DEBUG
        no log engineering
        log fields timestamp instance no-calling-task
        no log here
    Warning: Logging to this terminal is disabled
        log severity OFF
          category         severity    verbosity   filters   notes
    --------------------   ---------   ---------   -------   -----
    aaaAtm1483Cfg          OFF         low                   1
    aaaEngineGeneral       OFF         low                   1
    aaaServerGeneral       OFF         low                   1
    aaaUserAccess          OFF         low                   1
    addressServerGeneral   OFF         low                   1
    ar1AaaServerGeneral    OFF         low                   1
    atm                    EMERGENCY   low                   2
    atm1483                OFF         low                   1
    atmAal5                OFF         low                   1 

    Notice that the atm event category does not change.

  6. Remove the assigned status of the atm event category and view the log configuration:
    host1(config)#no log severity atm
    host1(config)#run show log config
        log destination console severity WARNING
        log destination nv-file severity CRITICAL
        log destination syslog 10.10.4.240 facility 7 severity DEBUG
        no log engineering
        log fields timestamp instance no-calling-task
        no log here
    Warning: Logging to this terminal is disabled
        log severity OFF
          category         severity   verbosity   filters   notes
    --------------------   --------   ---------   -------   -----
    aaaAtm1483Cfg          OFF        low                   1
    aaaEngineGeneral       OFF        low                   1
    aaaServerGeneral       OFF        low                   1
    aaaUserAccess          OFF        low                   1
    addressServerGeneral   OFF        low                   1
    ar1AaaServerGeneral    OFF        low                   1
    atm                    OFF        low                   1
    atm1483                OFF        low                   1
    atmAal5                OFF        low                   1 

    Notice that the atm event category follows the systemwide severity level of OFF. The systemwide setting takes precedence over the atm event category default of Error.

  7. Change all event categories, systemwide, to their default/unassigned levels, and view the log configuration:
    host1(config)#no log severity *
    Please wait....
    host1(config)#run show log config
        log destination console severity WARNING
        log destination nv-file severity CRITICAL
        log destination syslog 10.10.4.240 facility 7 severity DEBUG
        no log engineering
        log fields timestamp instance no-calling-task
        no log here
    Warning: Logging to this terminal is disabled
        no log severity
          category         severity   verbosity   filters   notes
    --------------------   --------   ---------   -------   -----
    aaaAtm1483Cfg          ERROR      low
    aaaEngineGeneral       ERROR      low
    aaaServerGeneral       ERROR      low
    aaaUserAccess          ERROR      low
    addressServerGeneral   ERROR      low
    ar1AaaServerGeneral    ERROR      low
    atm                    ERROR      low
    atm1483                ERROR      low
    atmAal5                ERROR      low 

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