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    Understanding Alarm Types and Severity Levels on MX150

    Alarms alert you to conditions that might prevent normal operation of the MX150. Table 1 provides a list of alarm terms and definitions that might help you in monitoring the device.

    Table 1: Alarm Terms and Definitions

    Term

    Definition

    Alarm

    Signal alerting you to conditions that might prevent normal operation. LEDs are the alarm indicators on the device. Blinking amber LEDs indicate yellow alarm conditions for chassis components.

    Alarm condition

    Failure event that triggers an alarm.

    Alarm severity levels

    Seriousness of the alarm. The level of severity can be either major (red) or minor (yellow).

    • Major (red)—Indicates a critical situation on the device that has resulted from one of the following conditions. A red alarm condition requires immediate action.
      • One or more hardware components have failed.
      • One or more hardware components have exceeded temperature thresholds.
      • An alarm condition configured on an interface has triggered a critical warning.
    • Minor (yellow or amber)—Indicates a noncritical condition on the device that, if left unchecked, might cause an interruption in service or degradation in performance. A yellow alarm condition requires monitoring or maintenance. For example, a missing rescue configuration generates a yellow system alarm.

    Alarm types

    Alarms include the following types:

    • Chassis alarm—Predefined alarm triggered by a physical condition on the device such as a power supply failure or excessive component temperature.
    • Interface alarm—Alarm you configure to alert you when an interface link is down. Applies to ethernet, fibre-channel, and management-ethernet interfaces. You can configure a red (major) or yellow (minor) alarm for the link-down condition, or have the condition ignored.
    • System alarm—Predefined alarm that might be triggered by a missing rescue configuration, failure to install a license for a licensed software feature, or high disk usage.
     

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    Modified: 2017-10-23