Juniper QFX Series Hardware Guide

b. Connecting the QFX5110 to Power on page 95
c. Registering Products—Mandatory for Validating SLAs on page 89
4. Follow the instructions in “Configuring a QFX5110” on page 104.
Virtual Chassis Fabric Installation Overview
For best results, ensure you review and understand the Virtual Chassis Fabric (VCF)
configuration options. These configuration options are explained in “Virtual Chassis Fabric
Hardware Overview” on page 66 and Understanding Virtual Chassis Fabric Configuration.
Do not interconnect the switches with cables until directed in the procedure.
1. Install the individual switches in a rack or cabinet following the guidelines in “Planning
a Virtual Chassis Fabric Deployment” on page 67.
BEST PRACTICE: Install spine devices at the top of the rack or cabinet in
order of master routing engine (RE), backup RE, and then other leaf
devices.
2. Make a list of all of the serial numbers of the devices.
3. Log into each device and configure into fabric mode and mixed mode, if needed. Mixed
mode is only necessary for QFX5100 VCF when QFX5100-96S, QFX5100-48T,
QFX3500, QFX3600, or EX4300 devices are present as leaf devices in the
configuration. If a spine device is not properly configured in fabric and mixed mode
for QFX5100 mixed VCF, the VCF devices reboot to commit the mixed mode or fabric
settings. When fabric and mixed mode are not set, you might need to manually correct
any issues that are related to the VCF not forming correctly because the device did
not immediately join the VCF.
WARNING: Only configure operational-level commands. If you commit
any configuration-level commands (including assigning IP address), the
Virtual Chassis Fabric cannot form and the switch must be zeroed.
4. Configure the VCF into mixed mode if it is a QFX5100 VCF and the switch models span
different lines of switches.
5. Configure each device for one of the provisioning modes: autoprovision, preprovision,
or nonprovision. See:
•
Autoprovisioning a Virtual Chassis Fabric
•
Preprovisioning a Virtual Chassis Fabric
Copyright © 2019, Juniper Networks, Inc.86
QFX5110 Switch Hardware Guide

Juniper QFX Series Specifications

General

Category	Switch
Series	QFX
Form Factor	1U, 2U, and modular chassis options
Power Supply	Redundant, hot-swappable power supplies
Cooling	hot-swappable fans
Virtual Chassis	Supported on certain models
Typical Use	Data center, cloud
Operating System	Junos OS
Management	CLI
Key Features	High performance, low latency, automation
Latency	Sub-microsecond latency
Port Density	Varies by model (e.g., QFX5100: up to 48x10GbE + 6x40GbE)