Juniper Networks QFX5120-48Y-AFI2 48x25GbE + 8x100GbE 1U AC airflow in Switch
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QFX5120-48Y-AFI2
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QFX5120-48Y-AFI2 Overview
Juniper QFX5120-48Y-AFI2 Qfx5120 Ethernet Switch - Manageable - 3 Layer Supported - Modular - 272 W Power Consumption - Optical Fiber - 1u - Rack-mountable. Overview The Qfx5120 Switch Delivers Low Latency, Rich Layer 2 And Layer 3 Features, And Advanced Evpn- Vxlan 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 Up To 48 25gbe Ports And Eight 100gbe Uplink Ports In A 1 U Platform Up To 2 Tbps L2 And L3 Performance, With Latency As Low As 550 Nanoseconds Technical Specifications Management & Protocols
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Specifications
Overview
| Condition | Refurbished |
|---|---|
| Brand | Juniper |
| Stock | In Stock |
General
| Manageable | Yes |
|---|---|
| Layer Supported | 3 |
| Power Source | Power Supply |
| Power Consumption | 272 W |
| Redundant Power Supply Supported | Yes |
| Modular | yes |
| Uplink Port | Yes |
Expansion Slot Type
| Number Of Sfp+ Slots | 48 |
|---|---|
| Shared Sfp Slot | No |
| Total Number Of Expansion Slots | 56.0 |
Physical Characteristics
| - Weight (approximate) | 23.70 Lb |
|---|---|
| - Form Factor | Rack-mountable |
| - Height | 1.7 |
| - Width | 17.4 |
| - Depth | 20.5 |
| - Compatible Rack Unit | 1u |
Frequently Asked Questions
What are the primary port configurations and interface speeds for the Juniper QFX5120-48Y-AFI2? +
The QFX5120-48Y-AFI2 is designed for high-density data center environments, featuring 48 ports of 25GbE SFP28 interfaces and 8 ports of 100GbE QSFP28 uplinks. This configuration provides the high-bandwidth flexibility needed for leaf-and-spine architectures, ensuring line-rate performance for demanding server-to-switch connectivity while maintaining compatibility with 10GbE environments as needed.
Does the QFX5120-48Y-AFI2 support advanced Layer 3 routing protocols for enterprise data centers? +
Yes, this platform offers robust Layer 3 capabilities, including support for BGP, OSPF, and IS-IS. It is engineered to handle complex data center routing requirements and supports advanced features like VXLAN EVPN, which is essential for building modern, scalable, and multi-tenant overlay networks in cloud-ready infrastructure.
How does the airflow direction of the QFX5120-48Y-AFI2 impact rack deployment? +
The AFI2 designation indicates an Airflow In (front-to-back) cooling configuration. This design is optimized for hot-aisle/cold-aisle data center deployments, ensuring that the switch draws cool air from the cold aisle and exhausts heat into the hot aisle, maintaining optimal thermal efficiency and hardware reliability within standard server rack enclosures.
Can the QFX5120-48Y-AFI2 be integrated into a Junos OS-based network management ecosystem? +
The switch runs on the carrier-grade Junos OS, allowing for seamless integration into existing Juniper environments. Network administrators can utilize the full suite of Junos automation tools, including programmable APIs, NETCONF, and Junos Space, to streamline configuration, monitoring, and orchestration across the entire network fabric.
What is the expected throughput performance of the QFX5120-48Y-AFI2 switch? +
The QFX5120-48Y-AFI2 delivers impressive switching capacity, providing wire-speed performance across all ports. It is built to minimize latency in high-performance computing and storage area network environments, ensuring that packet processing remains consistent even under significant traffic loads, making it an ideal candidate for bandwidth-intensive data center applications.
How do I ensure compatibility with existing SFP28/QSFP28 optics and cabling? +
This switch supports a wide array of standardized pluggable transceivers and direct-attach copper (DAC) cables. It is generally compatible with standard-compliant SFP28 and QSFP28 form factors; however, always verify that your specific optical modules are qualified within the Juniper Hardware Compatibility Tool to ensure optimal physical layer performance and operational stability.
Does the QFX5120-48Y-AFI2 support redundant power supplies and fan trays? +
This model is equipped with field-replaceable, redundant power supplies and fan modules. This hot-swappable design ensures continuous uptime and high availability for mission-critical workloads, allowing for maintenance or component replacement without interrupting the data plane or requiring a full system shutdown of your network fabric.
Is the QFX5120-48Y-AFI2 suitable for spine-and-leaf network architectures? +
Absolutely. With its high-density 25GbE downlinks and high-speed 100GbE uplinks, this switch is purpose-built to act as a leaf node in a 25G/100G data center fabric. Its architectural design allows for modular scalability, enabling organizations to grow their network capacity incrementally while maintaining low-latency connectivity across the entire infrastructure.
How can I obtain a bulk quote for the QFX5120-48Y-AFI2 from BuyRouterSwitch.com? +
For large volume orders, our sales team provides custom pricing to ensure you receive the most competitive rates for your infrastructure project. Simply contact us through our website's quote request form or reach out via our direct sales channels, and we will prepare a tailored proposal that meets your specific purchasing requirements and budgetary needs.
Why should I purchase my networking hardware from BuyRouterSwitch.com? +
BuyRouterSwitch.com is a trusted source for enterprise-grade networking solutions. We pride ourselves on offering authentic equipment, a simplified procurement process, and expert assistance in navigating complex hardware specifications. Our focus is on providing a secure and reliable purchasing experience, ensuring you receive the high-quality Juniper gear necessary to support your critical business operations efficiently.
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