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Difficulty: MediumSyslog Operations, Severity Levels, and Log Destination Configuration

A network engineer is configuring logging thresholds on a Cisco IOS router and needs to categorize Syslog severity levels according to their standard numerical hierarchy. Arrange the following Syslog severity names in order from the MOST severe (lowest numerical level) to the LEAST severe (highest numerical level).

  1. 1Critical
  2. 2Error
  3. 3Warning
  4. 4Informational

Answer

The correct order from most severe (lowest numerical value) to least severe (highest numerical value) is: Critical (level 2), Error (level 3), Warning (level 4), and Informational (level 6).
Syslog levels range from 0 (Emergency) down to 7 (Debugging). Ordering the specified levels from most severe to least severe requires listing them in ascending order of their numerical values: Critical (2), Error (3), Warning (4), and Informational (6).

Step-by-Step Solution

1
Identify the numerical Syslog severity level assigned to each named severity.
Critical = Level 2, Error = Level 3, Warning = Level 4, Informational = Level 6.
Cisco IOS Syslog protocol assigns integer values from 0 (most urgent) to 7 (least urgent).
2
Sort the severity names by their numerical levels in ascending order.
Level 2 (Critical) < Level 3 (Error) < Level 4 (Warning) < Level 6 (Informational).
Lower numerical values indicate higher severity and greater urgency.
3
Construct the final sequence based on the sorted values.
Critical -> Error -> Warning -> Informational.
This sequence properly orders the Syslog messages from highest urgency to lowest urgency.

Key Concept

Cisco IOS Syslog Severity Levels and Hierarchy
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Topics

Syslog Operations, Severity Levels, and Log Destination Configuration

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