Check The Feb Connection; Perform A Swap Test On The Feb - Juniper M Series Monitoring And Troubleshooting Manual
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M Series and T Series Routers Monitoring and Troubleshooting Guide
Meaning
Check the FEB Connection
Purpose
Action
Perform a Swap Test on the FEB
Purpose
Action
558
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
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
To verify FEB failure by checking the FEB connection.
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.
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.
You must power down the router to remove and replace the FEB.
To perform a swap test on an FEB:
Attach an electrostatic discharge (ESD) strap to your bare wrist, and connect the
1.
strap to one of the two ESD points on the chassis.
Turn off power to the router. For information on powering down the router, see the
2.
M5 and M10 Internet Router Hardware Guide.
Unscrew the five screws holding the rear chassis component cover in place, and
3.
remove the cover. Be sure to save the screws for when you reinstall the cover.
Flip the ends of the two ejector levers towards the outside edges of the router.
4.
Grasp both sides of the FEB and slide it about three-quarters of the way out of the
5.
router.
Move one hand underneath the FEB to support it and slide it completely out of the
6.
chassis.
Remove the Routing Engine from the FEB.
7.
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
Copyright © 2012, Juniper Networks, Inc.
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