Juniper MX2020 Hardware Guide

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 Online Master
IntakeA-Zone0 Temperature 25 degrees C / 77 degrees F
IntakeB-Zone1 Temperature 29 degrees C / 84 degrees F
IntakeC-Zone0 Temperature 28 degrees C / 82 degrees F
ExhaustA-Zone0 Temperature 26 degrees C / 78 degrees F
ExhaustB-Zone1 Temperature 28 degrees C / 82 degrees F
TCBC-Zone0 Temperature 32 degrees C / 89 degrees F
Power 1
1.0 V 1008 mV
1.2 V 1208 mV
1.8 V 1801 mV
2.5 V 2526 mV
3.3 V 3312 mV
5.0 V 5020 mV
5.0 V RE 4995 mV
12.0 V 12123 mV
12.0 V RE 12007 mV
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Juniper MX2020 Specifications

General

Brand	Juniper
Model	MX2020
Category	Network Router
Language	English