- General Information
 - Manufacturer
 - Juniper Networks, Inc
 
- Manufacturer Website Address
 - http://www.juniper.net
 
- Brand Name
 - Juniper
 
- Product Series
 - QFX5100
 
- Product Type
 - Ethernet Switch
 
The QFX5120 Switch delivers low latency, rich Layer 2 and Layer 3 features, and advanced EVPNVXLAN capabilities, making it an ideal data center top-of-rack and aggregation switch for enterprise multicloud deployments.
Featuring Layer 3 gateway capabilities for routing between virtualized and bare-metal servers, the QFX5120 is designed for extremely agile data centers that require support for overlay/ underlay network architectures. Native 25GbE with 100GbE uplink ports on the QFX5120- 48Y, combined with 32 ports of 100GbE on the QFX5120- 32C, make the QFX5120 family ideal for leaf-and-spine network deployments. 
Product Description 
Data centers are expanding rapidly as they adopt more cloud services, creating a need for higher network bandwidth per rack. As a result, 25GbE and 100GbE have become the dominant port speeds in most data centers. The tremendous growth of cloud services, coupled with the widespread adoption of overlay technologies, has created a need for highly agile switching platforms that can satisfy the demands of these evolving data centers. 
The high-performance Juniper Networks® QFX5120 Switch fits the bill, providing the foundation for dynamic data centers. Native 25GbE ports on the QFX5120- 48Y satisfy the growing demand for server access speeds, while high-density 100GbE ports on the QFX5120-32C satisfy the need for compact, lower power devices in the spine. The QFX5120 is packed with software features that support traditional fabric designs with multichassis link aggregation (MC-LAG) or evolving SDN architectures with Ethernet VPN (EVPN)/Virtual Extensible LAN (VXLAN) on IP fabric underlays. 
Architecture and Key Components
The QFX5120 includes native 25GbE (fiber only) and 100GbE fixed-configuration options with rich L2, L3, EVPN, and MPLS features. The QFX5120 runs the same reliable, high-performance Juniper Networks Junos® operating system used by all Juniper Networks QFX Series and EX Series Ethernet Switches, SRX Series Services Gateways, and Juniper Networks routers, ensuring a consistent control plane feature implementation and user experience across the entire Juniper infrastructure
Product Options
The QFX5120 switch family includes two compact, 1 U platforms that provide wirespeed packet performance, very low latency, and a rich set of Junos OS features. 
 
- The QFX5120-48Y is a 25GbE/100GbE data center access switch offering 48 small form-factor pluggable plus (SFP+) transceiver ports and eight quad SFP (QSFP28) ports that can be configured as 8x40GbE or 8x100GbE ports, with an aggregate throughput of 2 Tbps or 2 Bpps per switch. For added flexibility, each QSFP28 port can also be configured as 4x25GbE ports using breakout cables, while each QSFP+ port can be configured as 4x10GbE ports using breakout cables, increasing the number of supported 25GbE and 10GbE ports per switch to 80.
 - The QFX5120-32C is a compact 100GbE data center spine switch offering 32 QSFP28 or 32 quad SFP+ (QSFP+) ports. The 100GbE ports can also be configured as 4x25GbE ports using breakout cables, enabling the QFX5120- 32C to be used as a high-density 25GbE top-of-rack switch.
 
- Warranty
 - Limited Warranty
 - 1 Year
 
- Interfaces/Ports
 - Total Number of Network Ports
 - 48
 
- Uplink Port
 - Yes
 
- Modular
 - Yes
 
- Port/Expansion Slot Details
 - 48 x 25 Gigabit Ethernet Expansion Slot
 
- 8 x 100 Gigabit Ethernet Uplink
 
- Media & Performance
 - Media Type Supported
 - Twisted Pair
 
- Optical Fiber
 
- Ethernet Technology
 - 25 Gigabit Ethernet
 
- 100 Gigabit Ethernet
 
- Network Technology
 - 25GBase-X
 
- 100GBase-X
 
- I/O Expansions
 - Total Number of Expansion Slots
 - 56.0
 
- Expansion Slot Type
 - SFP28
 
- QSFP28
 
- Network & Communication
 - Layer Supported
 - 3
 
- Management & Protocols
 - Manageable
 - Yes
 
- Power Description
 - Power Source
 - Power Supply
 
- Redundant Power Supply Supported
 - Yes
 
- Power Consumption
 - 272 W
 
- Physical Characteristics
 - Compatible Rack Unit
 - 1U
 
- Form Factor
 - Rack-mountable
 
- Height
 - 1.7"
 
- Width
 - 17.4"
 
- Depth
 - 20.5"
 
- Weight (Approximate)
 - 23.70 lb
 
- Miscellaneous
 - TAA Compliant
 - Yes
 
- Environmentally Friendly
 - Yes
 
- Environmental Compliance
 - Restriction of Hazardous Substances (RoHS)
 
- China Restriction of Hazardous Substances (China RoHS)
 
- Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)
 
- Waste Electrical and Electronic Equipment Directive (WEEE)