Table 149: Checklist For Monitoring Redundant Control Boards; Redundant Control Boards Overview - Juniper M Series Monitoring And Troubleshooting Manual

M Series and T Series Routers Monitoring and Troubleshooting Guide
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Redundant Control Boards Overview

666
"Checklist for Monitoring the Control Board" on page
Table 149 on page 666 provides a checklist of tasks you perform to monitor redundant
Control Boards.

Table 149: Checklist for Monitoring Redundant Control Boards

Monitor Redundant Control Board Tasks
"Display Redundant Control Board
Hardware Information" on page 669
"Display Redundant Control Board Mastership" on page 670
1. Check the Redundant Control Board
Environmental Status on page 670
2. Check the Redundant Control Board Status
from the Craft Interface on page 671
3. Check the Redundant Control Board LED
Status on page 671
"Switch Control Board Mastership" on
page 672
"Check the Control Board Alarms" on
page 672
"Replace a Control Board" on page 672
"Return the Control Board" on page 673
Redundant Control Boards Overview on page 666
Inspect redundant Control Boards to ensure that router component functions are
uninterrupted. Each Control Board works with an adjacent Routing Engine to provide
381.
Command or Action
show chassis hardware
show chassis environment cb
show chassis craft-interface
Examine the LEDs on the Control Board
faceplate.
Press the Control Board offline button on the
component faceplate.
For conditions that trigger Control Board alarms,
see "Display the Current Router Alarms" on
page 67.
1. Determine whether the host subsystem is
functioning as master or as backup by using
the
show chassis routing-engine
2. Take the host subsystem offline if the Control
Board is master by using the
routing-engine master switch
3. Replace the Control Board with a known
working one.
4. Check the Control Board status by examining
the LEDs on the Control Board faceplate, or
by using the
show chassis hardware
command.
Locate the Control Board serial number ID label.
See "Return the Failed Component" on page 116
or the appropriate hardware guide.
Copyright © 2012, Juniper Networks, Inc.
command.
request chassis
command.