• Verify that the power cables or cord do not touch or obstruct access to other router
components, and that they do not drape where people could trip on them.
• Verify that the air flow in and out of cooling system components is not obstructed.
Related
Documentation
M7i Power System Description on page 59•
• M7i Router Power Requirements on page 79
• Troubleshooting the M7i Power System When the LED on One M7i Power Supply Is Off
on page 206
• Troubleshooting the M7i Power System When the LEDs on All M7i Power Supplies Are
Blinking or Off on page 206
Maintaining the M7i CFEB and CFEB-E
Purpose For optimum cooling, verify the condition of the CFEB.
Action Check the LEDs on the CFEB or CFEB-E faceplate. The green LED labeled OK lights
steadily on the CFEB or CFEB-E when it is functioning normally. For more information,
•
see “M7i Compact Forwarding Engine Board (CFEB) and Enhanced Compact Forwarding
Engine Board (CFEB-E) Description” on page 63.
• Issue the CLI show chassis cfeb command to check the status of the CFEB (first output
example) or the CFEB-E (second output example):
user@host> show chassis cfeb
CFEB status:
State Online
Intake Temperature 27 degrees C / 80 degrees F
Exhaust Temperature 33 degrees C / 91 degrees F
CPU utilization 3 percent
Interrupt utilization 0 percent
Heap utilization 8 percent
Buffer utilization 21 percent
Total CPU DRAM 128 MB
Internet Processor II Version 1, Foundry IBM, Part number 164
Start time: 2003-06-11 11:41:22 PDT
Uptime: 1 hour, 39 minutes, 31 seconds
user@host> show chassis cfeb
CFEB—E status:
State Online
Intake Temperature 27 degrees C / 80 degrees F
Exhaust Temperature 33 degrees C / 91 degrees F
CPU utilization 3 percent
Interrupt utilization 0 percent
Heap utilization 8 percent
Buffer utilization 21 percent
Total CPU DRAM 128 MB
Internet Processor II Version 1, Foundry IBM, Part number 164
195Copyright © 2019, Juniper Networks, Inc.
Chapter 28: Maintaining Components
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