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Last configured: 2002-07-10 23:10:27 PDT (6d 17:33 ago) by regress

4:43PM up 4 days, 23:15, 2 users, load averages: 0.07, 0.02, 0.00

Meaning The command output displays the time when the system was last booted, in days and

hours. If the boot time is short, it can indicate a Routing Engine or an FEB failure. Look for

error messages that were generated at least 5 minutes prior to the failure event by using

the following command:

user@host> show log messages

Check the FEB Connection

Purpose To verify FEB failure by checking the FEB connection.

Action 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.

Perform a Swap Test on the FEB

Purpose To verify FEB failure by performing a swap test on the FEB.

CAUTION: Before performing a swap test, always check for bent pins in the

midplane and check the FEB for stuck pins in the connector. Pins stuck in the

component connector can damage other good slots during a swap test.

Action You must power down the router to remove and replace the FEB.

To perform a swap test on an FEB:

1. Attach an electrostatic discharge (ESD) strap to your bare wrist, and connect the

strap to one of the two ESD points on the chassis.

2. Turn off power to the router. For information on powering down the router, see the

M5 and M10 Internet Router Hardware Guide.

3. Unscrew the five screws holding the rear chassis component cover in place, and

remove the cover. Be sure to save the screws for when you reinstall the cover.

4. Flip the ends of the two ejector levers towards the outside edges of the router.

5. Grasp both sides of the FEB and slide it about three-quarters of the way out of the

router.

6. Move one hand underneath the FEB to support it and slide it completely out of the

chassis.

7. Remove the Routing Engine from the FEB.

Unscrew the screws on the outside edges of the extractor clips to unseat the Routing

Engine from the FEB. Press in on the red tabs on the extractor clips, then flip the ends

M Series and T Series Routers Monitoring and Troubleshooting Guide

Juniper M Series User Manual

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