Juniper Networks M5 Troubleshoot the FEB, Troubleshoot PICs, Troubleshoot the Power System, 125

Troubleshoot the Power System

Troubleshoot the FEB

If the FEB fails, the forwarding and routing functions of the router halt immediately and do not resume until the FEB failure has been corrected.

To troubleshoot an FEB, follow these guidelines:

•Make sure the FEB is properly seated in the midplane. Use a Phillips screwdriver to ensure that the screws at the top of the FEB are securely tightened.

•Check the alarm LEDs on the craft interface. An FEB failure generates either a red or yellow alarm, depending on the type of failure.

Troubleshoot PICs

To troubleshoot the PICs, follow these guidelines:

•To check the status of each port on a PIC, look at the LED located on the PIC faceplate. For information about the meaning of LED states on different PICs, see the M5 and M10 Internet Routers PIC Guide.

•To check the status of a PIC, issue the following CLI command. The PIC slots in the FPC are numbered from 0 through 3, right to left:

user@host> show chassis fpc pic-status

Slot 0 Online

PIC 0 4x OC-3 SONET, MM

PIC 1 1x CSTM1, SMIR

PIC 3 2x OC-3 ATM, MM Slot 1 Online

PIC 0 1x OC-12 SONET, MM

PIC 1 1x OC-12 ATM, MM

PIC 2 2x OC-3 ATM, MM

PIC 3 2x OC-3 ATM, MM

For further description of the output from the command, see the JUNOS Internet Software Operational Mode Command Reference: Protocols, Class of Service, Chassis, and Management.

Troubleshoot the Power System

When a power supply is functioning correctly, the blue LED labeled OUTPUT OK is lit steadily.

If any other LED states apply, consult the following sections:

•

•

LED on Both Supplies Is Off on page 126

LED on One Supply Is Off on page 126

Troubleshoot Hardware Components 125