Juniper Networks J2320 manual Troubleshooting Hardware Components, Chassis Alarm Conditions

Chapter 11

Troubleshooting Hardware Components

This chapter contains the following topics:

■Chassis Alarm Conditions on page 211

■Troubleshooting Power Management on page 212

■Contacting the Juniper Networks Technical Assistance Center on page 214

Chassis Alarm Conditions

You can monitor alarms to troubleshoot hardware problems on a Services Router. Alarms alert you to conditions on the router chassis, or in the system software that might prevent the router from operating normally. You can monitor active alarms from the J-Web interface or the CLI.

Services Router alarms warn you about conditions that can prevent the router from operating normally. Chassis and system alarm conditions are preset. When the Routing Engine detects an alarm condition, it lights the ALARM LED on the front panel. When the condition is corrected, the light turns off.

To view a more detailed description of the alarm cause, issue the show chassis alarms CLI command:

user@host> show chassis alarms

Table 64 on page 211 describes alarms that can occur for a chassis component such as the Routing Engine or a Physical Interface Module (PIM).

Table 64: Chassis Alarm Conditions and Corrective Actions

Component	Alarm Conditions	Corrective Action	Alarm Severity
Alternative boot media	The Services Router boots from	Typically, the router boots from the	Yellow (minor)
	an alternative boot device.	internal compact flash. If you
		configured your router to boot from
		an alternative boot device, ignore this
		alarm condition.
		If you did not configure the router to
		boot from an alternative boot device,
		contact JTAC. (See “Requesting
		Support” on page xxi.)

Chassis Alarm Conditions ■ 211