Juniper QFX5100, Руководство по оборудованию

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NOTE: If you have a Juniper J-Care service contract, register any addition,
change, or upgrade of hardware components at
https://www.juniper.net/customers/csc/management/updateinstallbase.jsp
.
Failure to do so can result in significant delays if you need replacement parts.
This note does not apply if you replace existing components with the same
type of component.
Related
Documentation
Installing and Removing QFX5100 Switch Hardware Components on page 193
•
Understanding Hardware Redundancy of QFX5100 Switch Components and
Functionality
The following hardware components provide redundancy on a QFX5100 switch:
•
Power supplies—The QFX5100 switch has one or two power supplies. Each power
supply provides power to all components in the switch. If two power supplies are
installed, the two power supplies provide full power redundancy to the device. If one
power supply fails or is removed, the second power supply balances the electrical load
without interruption.
To provide power redundancy to the system both power supplies must be installed.
Connect power source feed A to one power supply and power source feed B to the
second power supply.
CAUTION: Do not connect feed A and feed B to the same power supply
input terminal.
• Cooling system—The 1 U models of QFX5100 line of switches have five fan modules;
the 2 U QFX5100-96S has three fan modules. If a fan module fails and is unable to
keep the QFX5100 switch within the desired temperature thresholds, chassis alarms
occur and the QFX5100 switch can shut down.
Related
Documentation
AC Power Supply for a QFX5100 Switch on page 35
•
•
DC Power Supply in a QFX5100 Switch on page 37
•
Cooling System and Airflow in a QFX5100 Switch on page 25
Supported Environments for QFX Series Switches
QFX Series switches can operate:
•
Standalone
• In a QFabric System (3000-G and 3000-M)
9 Copyright © 2014, Juniper Networks, Inc.
Chapter 1: QFX5100 Overview