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Monitoring the SRX220 Services Gateway Using Chassis Alarm Conditions


When the services gateway detects an alarm condition, the Alarm LED on the front panel turns red or amber as appropriate.

To view a more detailed description of the cause of the alarm, issue the show chassis alarms command on the command-line interface (CLI).

For more information on the show chassis alarms command, see the Network Management and Monitoring Guide.

Table 1 describes alarms that can occur for an SRX220 Services Gateway chassis component.

Table 1: SRX220 Services Gateway Chassis Alarm Conditions and Corrective Actions


Alarm Condition


Alarm Severity

Boot media

The services gateway boots from an alternate boot device.

  • If the CompactFlash card fails at startup, the services gateway automatically boots from the alternative boot device (USB storage device).

    Note: If you configured your services gateway to boot from an alternative boot device, ignore this alarm condition.

  • Reformat the CompactFlash card, and install a bootable image.

  • If you did not configure the services gateway to boot from an alternative boot device, contact Juniper Networks Technical Assistance Center (JTAC). See Juniper Networks Technical Assistance Center.

Amber (minor)


A Mini-PIM has failed.

Red (major)

Hardware components on the services gateway

The services gateway chassis temperature is too warm

Amber (minor)

The services gateway fan has failed.

Place your hand near the exhaust vents at the rear of the chassis to determine whether the fan is pushing air out of the chassis.

Replace the failed fan. Contact JTAC. See Juniper Networks Technical Assistance Center.

Red (major)