Spec Sheet

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Data SheetQFX5100 Ethernet Switch
• Plug-and-play deployable architectures such as Virtual
Chassis, Virtual Chassis Fabric, Junos Fusion and QFabric
System with simplified management and operation
• Support for virtualization protocols such as Virtual
Extensible LAN (VXLAN), Open vSwitch Database (OVSDB)
protocol, and integration with Juniper Networks Contrail and
VMware NSX SDN controllers
• Advanced Junos OS features such as BGP Add-path, MPLS,
L3 VPN, and IPv6 6PE
• Investment protection enabled by compatibility with Juniper
Networks EX4300 Ethernet Switch, QFX3500 Switch, and
QFX3600 Switch in integrated fabric solutions
QFX5100 Switch Models
The QFX5100 line includes four compact 1 U models and one 2 U
model, each providing wire-speed packet performance, very low
latency, and a rich set of Junos OS features. In addition to a high
throughput Packet Forwarding Engine (PFE), the performance
of the control plane running on all QFX5100 models is further
enhanced with a powerful 1.5 GHz dual-core Intel CPU with 8 GB
of memory and 32 GB SSD storage.
QFX5100-48S: Compact 1 U 10GbE data center access switch
with 48 small form-factor pluggable and pluggable plus (SFP/
SFP+) transceiver ports and six quad SFP+ (QSFP+) ports with
an aggregate throughput of 1.44 Tbps or 1.08 Bpps per switch.
QFX5100-48T: Compact 1 U 10GbE data center access switch
with 48 tri-speed (10GbE/1GbE/100 Mbps) RJ-45 ports and six
QSFP+ ports with an aggregate throughput of 1.44 Tbps or 1.08
Bpps per switch.
QFX5100-24Q: Compact 1 U high-density 40GbE data center
access and aggregation switch starting at a base density of 24
QSFP+ ports with the option to scale to 32 QSFP+ ports with two
four-port expansion modules. All 32 ports support wire-speed
performance with an aggregate throughput of 2.56 Tbps or 1.44
Bpps per switch.
QFX5100-24Q-AA: Compact 1U high-density data center
switch starting with a base density of 24 QSFP+ ports. With the
addition of an optional double-wide QFX-PFA-4Q Packet Flow
Accelerator (PFA) expansion module, the switch can morph into
an intelligent application acceleration system. Alternatively,
by installing two four-port 40GbE expansion modules, the
QFX5100-24Q-AA can expand to support 32 QSFP+ ports. The
switch’s CPU subsystem is enhanced with a quad-core Intel CPU
with 32 GB of DRAM; additional storage capacity is provided via
an onboard 128 GB solid-state drive. The QFX-PFA-4Q features
an Altera Stratix V 320 Gbps FPGA with 24 GB SDRAM (DDR3)
for packet memory and 72 MB of quad data-rate static RAM
(SRAM) (QDR2+) for low-latency processing. For additional
details, see the QFX5100-24Q-AA data sheet.
QFX5100-96S: Compact 2 U high-density 10GbE aggregation
switch with 96 SFP+/SFP and eight QSFP+ ports with an
aggregate throughput of 2.56 Tbps or 1.44 Bpps per switch.
For added flexibility, the 40GbE ports on all QFX5100 switches
can be used as 4x10GbE ports using QSFP+ to SFP+ direct
attach copper (DAC) or QSFP+ to SFP+ fiber splitter cables and
optics. With splitter cables, the QFX5100-48S supports up to 72
10GbE ports, while the QFX5100-24Q and QFX5100-96S support
up to 104 10GbE ports.
Junos OS
All four high-performance QFX5100 switches run Junos OS,
Juniper’s powerful and robust network operating system. Key
Junos OS features that enhance the functionality and capabilities
of the QXF5100 include:
• Software modularity with process modules running
independently in their own protected memory space and
with the ability to do process restarts
• Uninterrupted routing and forwarding with features such as
nonstop routing (NSR) and nonstop bridging (NSB)
• Commit and rollback functionality that ensures error-free
network configurations
• A powerful set of scripts for on-box problem detection,
reporting, and resolution
Junos Space Network Director
The QFX5100 switches can be managed through Junos Space
Network Director, a next-generation network management
solution that allows users to visualize, analyze, and control the
entire enterprise network—data center and campus, physical
and virtual, wired and wireless—through a single pane of glass.
Network Director incorporates sophisticated analytics for real-
time intelligence, trended monitoring, and automation to increase
agility as well as faster rollout and activation of services.
For cloud deployments, Network Director provides a set of REST
APIs that enable on-demand and dynamic network services
by simplifying the consumption of services for multitenant
environments. With third-party cloud orchestration tool
integration, the Network Director API enables automation and
provisioning of Layer 2, Layer 3, and security services in the data
center without the need for manual operator intervention.
Virtual Chassis Technology
The QFX5100 supports Juniper Networks’ unique Virtual Chassis
technology, which enables up to 10 interconnected switches to
be managed and operated as a single, logical device with a single
IP address. Virtual Chassis technology enables enterprises to
separate physical topology from logical groupings of endpoints
and, as a result, provides efficient resource utilization. All
QFX5100 switches can participate in the same Virtual Chassis
configuration, along with any combination of EX4300, QFX3500,
and QFX3600 Ethernet switches, delivering highly flexible and
scalable configuration options for data center deployments.