Monitoring Control Boards; Checklist For Monitoring The Control Board - Juniper M Series Monitoring And Troubleshooting Manual

CHAPTER 14

Monitoring Control Boards

Checklist for Monitoring the Control Board

Purpose
Action
Copyright © 2012, Juniper Networks, Inc.
Checklist for Monitoring the Control Board on page 381
Understanding the Control Board on page 382
Monitor the Control Board Status on page 388
Checking the Control Board Alarms on page 390
Verify Control Board Failure on page 393
Return the Control Board on page 399
To monitor and maintain the Control Boards that provide control and monitoring functions
for the router. These functions include determining Routing Engine mastership, controlling
power, performing reset and SONET clocking for the other router components, monitoring
and controlling fan speed, and monitoring system status using I²C controllers. (See
100 on page 381.)
Table 100: Checklist for Monitoring the Control Board
Monitor the Control Board Tasks
"Monitor the Control Board Status" on page 388
1. Check the Control Board
Environmental Status on page 388
2. Check the Control Board Status from
the Craft Interface on page 389
"Checking the Control Board Alarms" on page 390
1. Display Control Board Alarms on
page 391
Command or Action
show chassis environment cb
show chassis craft-interface
Check the LEDs on the Control Board
faceplate.
Check the Host Subsystem LEDs on the T320
router and the T640 router craft interface.
show chassis alarms
For conditions that trigger M320, T320, T640,
and T1600 router alarms, see
Current Router Alarms" on page
Table
"Display the
67.
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