Juniper M7i Hardware Guide

CHAPTER 29
Troubleshooting Components
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Overview of Troubleshooting Resources for the M7i Router on page 199
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Troubleshooting the M7i Fan Tray on page 204
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Troubleshooting the M7i FIC or PICs on page 205
•
Troubleshooting the M7i Power System When the LEDs on All M7i Power Supplies Are
Blinking or Off on page 206
•
Troubleshooting the M7i Power System When the LED on One M7i Power Supply Is
Off on page 206
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Troubleshooting the M7i CFEB and CFEB-E on page 207
Overview of Troubleshooting Resources for the M7i Router
•
LEDs on the FIC on page 199
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LEDs on Hardware Components on page 200
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Hardware and Interface Alarm Messages on page 200
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 5 on page 11. The LEDs on the FIC
include the following:
•
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 44. For more information
about the causes of alarms, see “Hardware and Interface Alarm Messages” on page 200.
•
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.
•
PIC—Each PIC has an LED on the FIC labeled PICS ON/OFF that shows whether the
PIC is online.
199Copyright © 2019, Juniper Networks, Inc.

Juniper M7i Specifications

General

Brand	Juniper
Model	M7i
Category	Network Router
Language	English