Juniper Networks J2350 Troubleshooting a Services Router, Troubleshooting Hardware Components

Chapter 9

Troubleshooting a Services Router

This chapter contains the following topics:

■Troubleshooting Hardware Components on page 157

■Resetting the Configuration File When the Router Is Inaccessible on page 160

■Recovering the Root Password on page 161

■Recovering Primary Boot Devices on page 164

■Contacting the Juniper Networks Technical Assistance Center on page 167

Troubleshooting Hardware Components

This section contains the following topics:

■Monitoring and Correcting Chassis Alarm Conditions on page 157

■Troubleshooting Power Management on page 159

Monitoring and Correcting 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 47 on page 158 describes alarms that can occur for a chassis component such as the Routing Engine or a Physical Interface Module (PIM).

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