redundant power supplies. The switch can be ordered with either ports-to-FRUs or
FRUs-to-ports airflow and with AC or DC power supplies.
Figure 2: QFX5100-48T Port Panel
The QFX5100-48T can be used as:
•
A standalone switch.
•
A Node device in a QFabric system.
The QFX5100-48T is supported on both the QFX3000-G and QFX3000-M QFabric
systems.
•
A master, backup, or line card in a QFX Virtual Chassis.
A QFX Series Virtual Chassis allows you to interconnect up to ten QFX5100, QFX3500,
or QFX3600, switches into one logical device and manage the device as a single
chassis using a ring topology.
•
A leaf device in a Virtual Chassis Fabric (VCF).
VCF uses Virtual Chassis technology to interconnect multiple devices into a single
logical device and manage that device as a single logical device inside of a fabric
architecture. VCF architecture supports up to 20 total devices in a spine and leaf
topology. Of those 20 devices, 4 QFX5100 devices can be configuredas spine devices.
In a VCF, the QFX5100-48T is always a leaf device and a QFX5100-24Q is the spine
device.
•
A satellite device in a Junos Fusion system.
Junos OS Release 14.2.3 or later is required for Junos Fusion.
•
QFX5100-24Q
As shown in Figure 3 on page 6, the QFX5100-24Q is a 40-Gigabit Ethernet QSFP+
switch with 24 high-density QSFP+ ports. Each QSFP+ port can operate as a native
40 Gbps port or as 4 independent 10 Gbps ports. The QFX5100-24Q switch has a 1 U
form factor and comes standard with redundant fans and redundant power supplies.
The switch can be ordered with either ports-to-FRUs or FRUs-to-ports airflow and
with AC or DC power supplies.
The QFX5100-24Q switch has two module bays for the optional expansion module,
QFX-EM-4Q, which can add a total of 8 additional QSFP+ ports to the chassis. When
operating as a standalone switch and fully populated with QFX-EM-4Q Expansion
Modules, the QFX5100-24Q switch is equivalent to 80 10 Gbps interfaces and 4
40-Gbps interfaces. Of these total ports, 104 logical ports are available for 10G port
channelization. For full details on the different port channelization modes, see “Port
Panel of a QFX5100-24Q Device” on page 23. All ports on the QFX5100-24Q and
5Copyright © 2016, Juniper Networks, Inc.
Chapter 1: System Overview
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