Software; Hardware - Juniper QFX5110 Series Hardware Documentation

QFX3500 Node devices and QFX3008-I or QFX3600-I Interconnect devices form a multistage, nonblocking
switch fabric that provides a high-performance, low-latency, unified interconnect solution for
next-generation data centers.
The QFX3500 Node devices and Interconnect devices are connected to Juniper Networks QFX3100
Director devices in an out-of-band management network through Juniper Networks EX4200 Ethernet
Switches. The QFX3100 Director devices present the QFabric system devices as a single network entity,
which enables simplified management of your data center using the Junos OS command-line interface
(CLI).
In a QFX Virtual Chassis, the QFX3500 device can participate with other QFX3500 devices and QFX3600
devices in a ring topology with up to 10 members.
In a QFX5100 Virtual Chassis Fabric, the QFX3500 device can participate as a leaf device. Up to a total
of 20 devices can participate in the QFX5100 Virtual Chassis Fabric.

Software

QFX Series devices use the Junos operating system (OS), which provides Layer 2 and Layer 3 switching,
routing, and security services. Junos OS is installed on the QFX3500 device's 8-gigabyte (GB) internal flash
drive. The same Junos OS code base that runs on QFX3500 devices also runs on all Juniper Networks EX
Series switches, and J Series, M Series, MX Series, and T Series routers.
For more information about which features are supported on QFX Series devices, see
When the QFX3500 device is operating as a standalone switch, you manage the switch using the Junos
OS command-line interface (CLI), accessible through the console and out-of-band management ports on
the device.
When a QFX Series device operates as part of a QFabric system, all the devices in the data center fabric
are managed through the Administrator software installed on the QFX3100 Director devices. Each device
in a QFabric system is interconnected in a single control plane and management network, using the
redundant management ports on each device.

Hardware

The compact QFX3500 device is 1 rack unit (1 U) in size and designed to fit in industry-standard 19-inch
rack-mount enclosures. See
Specifications for a QFX3500 Chassis.
NOTE: The standard mounting configuration for the QFX3500 device uses a two rail mounting
system. The QFX3500-RB-ACRB device model uses a four rail mounting system for installations
that need to recess the switch or need to mount the port (rear) end of the switch forward.
Figure 24 on page 53 and Figure 25 on page 53 and Chassis Physical
Feature Explorer.
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