Maintaining The Mx2020 Control Boards - Juniper MX2020 Hardware Manual

Maintaining the MX2020 Control Boards

Purpose
For optimum router performance, verify the condition of the Control Board and Routing Engine (CB-RE).
Action
On a regular basis:
Check the host subsystem LEDs on the craft interface. For more information about the LEDs and the
display, see MX2000 Switch Fabric Board LED.
During normal operations:
The green host subsystem ONLINE LED on the craft interface is lit.
The red host subsystem OFFLINE LED on the craft interface is not lit.
Check the LEDs on the control board portion of the CB-RE faceplate.
During normal operations:
The green OK LED on the CB-RE faceplate is lit.
The red FAIL LED on the CB-RE faceplate is not lit.
Issue the show chassis environment cb command to check the status of the CB-REs. The output is similar
to the following:
user@host> show chassis environment cb
CB 0 status:
State
IntakeA-Zone0 Temperature
IntakeB-Zone1 Temperature
IntakeC-Zone0 Temperature
ExhaustA-Zone0 Temperature 26 degrees C / 78 degrees F
ExhaustB-Zone1 Temperature 28 degrees C / 82 degrees F
TCBC-Zone0 Temperature
Power 1
1.0 V
1.2 V
1.8 V
2.5 V
3.3 V
5.0 V
5.0 V RE
12.0 V
12.0 V RE
Online Master
25 degrees C / 77 degrees F
29 degrees C / 84 degrees F
28 degrees C / 82 degrees F
32 degrees C / 89 degrees F
1008 mV
1208 mV
1801 mV
2526 mV
3312 mV
5020 mV
4995 mV
12123 mV
12007 mV
488