Table 150: Control Board Leds; Switch Control Board Mastership; Check The Control Board Alarms; Replace A Control Board - Juniper M Series Monitoring And Troubleshooting Manual

M Series and T Series Routers Monitoring and Troubleshooting Guide
Related
Documentation

Switch Control Board Mastership

Related
Documentation

Check the Control Board Alarms

Purpose
Action
Related
Documentation

Replace a Control Board

672

Table 150: Control Board LEDs

Label Color
Green
OK
FAIL Amber
MASTER Blue
Checklist for Monitoring Redundant Control Boards on page 665
To switch the Control Board master to backup or the Control Board backup to master,
take the Control Board offline by pressing the Control Board offline button on the
component faceplate. The backup Control Board will automatically start up. To remove
the Control Board, see "Replace a Control Board" on page
Checklist for Monitoring Redundant Control Boards on page 665
To determine the details of the Control Board alarms.
To check for the Control Board alarms, see
page 390. For conditions that trigger Control Board alarms, see
Alarms" on page 67.
Checklist for Monitoring Redundant Control Boards on page 665
The Control Board can fail and not start, or it can cause a connectivity problem between
the Routing Engine and the Packet Forwarding Engine components. You can perform a
swap test on the Control Board to try to pinpoint the problem.
To replace a Control Board, see
CAUTION: Before performing a swap test, always check for bent pins in the
midplane and check the Control Board for stuck pins in the connector. Pins
stuck in the component connector can damage other good slots during a
swap test.
State Description
On steadily Control Board is online and is
functioning normally.
On steadily Control Board has failed.
On steadily Control Board is functioning as master.
"Checking the Control Board Alarms" on
"Perform a Control Board Swap Test" on page
Copyright © 2012, Juniper Networks, Inc.
672.
"Display the Current Router
394.