Datasheet

CHAPTER 14
Troubleshooting M7i Hardware
Components
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Overview of Troubleshooting Resources for the M7i Router on page 79
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Troubleshooting the M7i CFEB and CFEB-E on page 84
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Troubleshooting the M7i FIC or PICs on page 84
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Troubleshooting the M7i Power System on page 85
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Troubleshooting the M7i Fan Tray on page 86
Overview of Troubleshooting Resources for the M7i Router
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LEDs on the FIC on page 79
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LEDs on Hardware Components on page 80
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Hardware and Interface Alarm Messages on page 80
LEDs on the FIC
The FIC provides status and troubleshooting information at a glance. It is located on the
front of the chassis below the PICs, as shown in Figure 1 on page 6. The LEDs on the FIC
include the following:
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Alarm—The circular red MAJOR ALARM LED indicates a critical condition that can result
in a system shutdown. The triangular yellow MINOR ALARM LED next to it indicates a
less severe condition that requires monitoring or maintenance. Both alarms can occur
simultaneously. When an alarm LED is lit, issue the show chassis alarms command in
the CLI to determine the cause of the alarm. For more information about the alarm
LEDs, see “M7i Fixed Interface Card (FIC) Description” on page 15. For more information
about the causes of alarms, see “Hardware and Interface Alarm Messages” on page 80.
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Interface—Each interface on a FIC has a LINK LED that indicates the port is online, and
a ACTIVITY LED that indicates activity on the port.
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PIC—Each PIC has an LED on the FIC labeled PICS ON/OFF that shows whether the
PIC is online.
79Copyright © 2012, Juniper Networks, Inc.