Maintaining The M320 Host Subsystem - Juniper M320 Hardware Manual

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Maintaining the M320 Host Subsystem

Purpose
Action
Copyright © 2015, Juniper Networks, Inc.
Bottom Blower
Middle Blower
Top Blower
Second Blower from top
...
M320 Cooling System Description on page 21
Troubleshooting the M320 Cooling System on page 287
Replacing an M320 Air Filter on page 203
Replacing an M320 Fan Tray on page 208
For optimum router performance, verify the condition of the host subsystem. The host
subsystem comprises a Routing Engine and up to two adjacent CBs functioning together.
On a regular basis:
Check the host subsystem LEDs (
LED is lit, look at the LED display to get more information about the cause of the
RE1
problem. For more information about the LEDs and the display, see
Interface Description" on page
Check the LED display on the craft interface to view information about the router
temperature and the status of the Routing Engines.
Check the LEDs on the CB faceplate to see information about the CB.
To check the status of the Routing Engines, issue the
command. The output is similar to the following:
user@host> show chassis routing-engine
Routing Engine status:
Slot 0:
Current state
Election priority
Temperature
DRAM
Memory utilization
CPU utilization:
User
Background
Kernel
Interrupt
Idle
Model
Serial ID
Start time
Uptime
Routing Engine status:
Slot 1:
Current state
Election priority
Temperature
DRAM
Chapter 31: Maintaining Components and Cables
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
RE0 and RE1 ) on the craft interface. If the red
15.
show chassis routing-engine
Backup
Master (default)
50 degrees C / 122 degrees F
2048 MB
10 percent
25 percent
0 percent
38 percent
4 percent
33 percent
RE-4.0
212058900125
2003-09-30 16:34:15 PDT
18 hours, 57 minutes, 9 seconds
Master
Backup (default)
29 degrees C / 84 degrees F
2048 MB
RE0 or
"M320 Craft
269