JUNIPER NETWORKS
JUNIPER NETWORKS QFX5120-48Y-AFI-T 48X25G+8X100G TAA 1U AC AIRFLOW IN
Mfg Part Number: QFX5120-48Y-AFI-T , Item #: 3618989
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Price: $34,728.44
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Last Updated: Jun 26, 2025
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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.
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.
Main Specification
| General Information | |
| Manufacturer | Juniper Networks, Inc |
| Manufacturer Part Number | QFX5120-48Y-AFI-T |
| Manufacturer Website Address | http://www.juniper.net |
| Brand Name | Juniper |
| Product Series | QFX5100 |
| Product Model | QFX5120-48Y |
| Product Name | QFX5120-48Y Ethernet Switch |
| Product Type | Ethernet Switch |
| Interfaces/Ports | |
| Total Number of Network Ports | 48 |
| Uplink Port | Yes |
| Modular | Yes |
| Port/Expansion Slot Details | 8 x 100 Gigabit Ethernet Uplink |
| Port/Expansion Slot Details | 48 x 25 Gigabit Ethernet Expansion Slot |
| Media & Performance | |
| Media Type Supported | Optical Fiber |
| Media Type Supported | Twisted Pair |
| Ethernet Technology | 25 Gigabit Ethernet |
| Ethernet Technology | 100 Gigabit Ethernet |
| Network Technology | 25GBase-X |
| Network Technology | 100GBase-X |
| I/O Expansions | |
| Total Number of Expansion Slots | 56.0 |
| Expansion Slot Type | QSFP28 |
| Expansion Slot Type | SFP28 |
| 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 | Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) |
| Environmental Compliance | Waste Electrical and Electronic Equipment Directive (WEEE) |
| Environmental Compliance | China Restriction of Hazardous Substances (China RoHS) |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) |
| Warranty | |
| Limited Warranty | 1 Year |
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