Maintaining The Mx2020 Host Subsystem; Maintaining The Mx2020 Routing Engines - Juniper MX2020 Hardware Manual

Maintaining the MX2020 Host Subsystem

Maintaining the MX2020 Routing Engines

Purpose
Action
Copyright © 2013, Juniper Networks, Inc.
During normal operation:
The green LEDs next to the fan trays
when the fan tray is functioning normally for that zone.
Issue the show chassis zones
The output is similar to the following:
user@host> show chassis zones
ZONE 0 Status
Driving FRU
Temperature
Condition
Num Fans Missing
Num Fans Failed
Fan Duty Cycle
ZONE 1 Status
Driving FRU
Temperature
Condition
Num Fans Missing
Num Fans Failed
Fan Duty Cycle
Maintaining the MX2020 Routing Engines on page 163
Maintaining the MX2020 Control Boards on page 166
Each host subsystem comprises a Control Board and Routing Engine (CB-RE) functioning
together.
To maintain the host subsystem, check the LEDs (
For more information about the LEDs and the display, see
Description" on page 33.
NOTE: Even though the Routing Engine is combined with a Control Board
(CB-RE), separate LEDs on the craft interface show the status of the routing
engines, and separate LEDs show the status of the control board.
For optimum router performance, verify the condition of the Routing Engines and the
CB-REs.
On a regular basis:
Check the host subsystem LEDs on the craft interface. For more information about the
LEDs, and the display, see
normal operations:
Chapter 11: Maintaining MX2020 Router Hardware Components
, , , and on the craft interface light steadily
0 1 2 3
command to check the status of the two cooling zones.
FPC 9
62 degrees C / 143 degrees F
WARM TEMP
0
0
30
FPC 19
64 degrees C / 147 degrees F
WARM TEMP
0
0
30
RE0
"MX2020 Craft Interface Description" on page
and RE1 ) on the craft interface.
"MX2020 Craft Interface
33. During
163