For further description of the output from the command, see the
Junos OS System Basics
and Services Command Reference
.
Related
Documentation
M40e Cooling System Description on page 48
•
•
Troubleshooting the Cooling System on the M40e Router on page 150
•
Replacing the Fan Tray on an M40e Router on page 168
•
M40e Clearance Requirements for Airflow and Hardware Maintenance on page 71
Maintaining the M40e Host Module Components
Purpose
Verify the condition of the host module components.
Action
The router can have a Routing Engine in each of the slots labeled
RE 0
and
RE 1
and a
Miscellaneous Control Subsystem (MCS) in each of the slots labeled
MCS 0
and
MCS 1
at the rear of the chassis, as shown in “M40e Chassis Description” on page 8. Each paired
Routing Engine and MCS function together as a host module. To maintain the host
module, regularly:
•
Check the LCD and the host module LEDs on the craft interface. The LCD reports host
module status during normal operation and describes the cause of failures when they
occur. The green LEDs labeled
ONLINE
and
MASTER
light steadily for the master host
module when it is functioning normally. The
ONLINE
LED also lights for the standby
host module if it is installed. For more information about the LEDs and LCD, see “M40e
Craft Interface Alarm LEDs and Controls” on page 35 and “M40e Craft Interface LCD
Description” on page 36.
•
Issue the CLI
show chassis routing-engine
command to check the status of the Routing
Engines. As shown in the sample output, the master Routing Engine is designated
Master
in the
Current state
field:
user@host>
show chassis routing-engine
Routing Engine status:
Slot 0:
Current state Master
Election priority Master (default)
Temperature 37 degrees C / 98 degrees F
DRAM 768 MB
Memory utilization 18 percent
CPU utilization:
User 0 percent
Background 0 percent
Kernel 2 percent
Interrupt 0 percent
Idle 98 percent
Model RE-2.0
Serial ID 8b00000792898b01
Start time 2003-04-29 16:09:49 PDT
Uptime 16 days, 3 hours, 6 minutes, 34 seconds
Load averages: 1 minute 5 minute 15 minute
0.00 0.00 0.00
Routing Engine status:
Slot 1:
131
Copyright © 2010, Juniper Networks, Inc.
Chapter 14: Maintaining M40e Router Hardware Components
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