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Juniper QFX Series Hardware Guide

Juniper QFX Series
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you encounter software problems, or problems with hardware components not
discussed here, contact JTAC.
•
Knowledge Base articles–Knowledge Base.
QFX Series Alarm Messages Overview
When a QFX Series switch detects an alarm condition, it lights the red or yellow alarm
LED on the management panel as appropriate. To view a more detailed description of
the alarm cause, issue the show chassis alarms CLI command:
user@host> show chassis alarms
6 alarms currently active
Alarm time Class Description
2018-02-07 12:12:18 PST Major FPC Management1 Ethernet Link Down
2018-02-07 12:11:54 PST Minor FPC0: LED 3:Alarm LED Read Error
2018-02-07 12:11:54 PST Minor FPC0: LED 3:Alarm LED Write Error
2018-02-07 12:11:54 PST Major FPC0: PEM 1 Not Supported
2018-02-07 12:11:54 PST Major FPC0: PEM 0 Not Supported
2018-02-07 12:11:54 PST Major FPC0: PEM 0 Not Powered
For Junos OS Evolved systems, show system alarms CLI command indicates major and
minor alarms on the system. In this example from a Junos OS Evolved system, a fan tray
error is shown in slot 4.
user@host> show system alarms
2 alarms currently active
Alarm time Class Description
2018-11-15 11:52:22 PST Major Fan Tray 4 Failure <<<<<
2018-11-15 10:40:08 PST Minor Host 0 Disk 2 Labelled incorrectly
Chassis Alarm Messages
Chassis alarms indicate a failure on the device or one of its components. Chassis alarms
are preset and cannot be modified.
Chassis alarms on QFX5100, QFX5110, QFX5210, and QFX5120 devices have two severity
levels:
•
Major (red)—Indicates a critical situation on the device that has resulted from one of
the conditions described in Table 39 on page 127. A red alarm condition requires
immediate action.
•
Minor (yellow)—Indicates a noncritical condition on the device that, if left unchecked,
might cause an interruption in service or degradation in performance. A yellow alarm
condition requires monitoring or maintenance.
Table 39 on page 127 describes the chassis alarm messages on QFX5100, QFX5110,
QFX5200, QFX5210, and QFX5120 devices.
Copyright © 2019, Juniper Networks, Inc.126
QFX5110 Switch Hardware Guide

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Juniper QFX Series Specifications

General IconGeneral
CategorySwitch
SeriesQFX
Form Factor1U, 2U, and modular chassis options
Power SupplyRedundant, hot-swappable power supplies
Coolinghot-swappable fans
Virtual ChassisSupported on certain models
Typical UseData center, cloud
Operating SystemJunos OS
ManagementCLI
Key FeaturesHigh performance, low latency, automation
LatencySub-microsecond latency
Port DensityVaries by model (e.g., QFX5100: up to 48x10GbE + 6x40GbE)

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