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Juniper QFX5120-48T-AFI QFX5120 48x RJ45 10GBT 6x QSFP28 Switch
- Port Configuration: 48 x 10Gbps RJ45 ports, 6 x 40Gbps QSFP+ ports
- Switching Capacity: 1.28 Tbps
- Forwarding Rate: 960 Mpps
- Form Factor: 1U Rack-mountable
- Management: Junos OS
- Layer 3 Features: Advanced routing capabilities, EVPN-VXLAN
- Buffer Size: 9MB
- Power Supplies: Dual, redundant, hot-swappable
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For government, enterprise, data center, and small business customers.
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Product Overview
The Juniper QFX5120-48T-AFI is a high-performance 10 Gigabit Ethernet switch designed for data center and enterprise core/aggregation deployments. It features 48 x 10Gb RJ45 ports and 6 x 40Gb QSFP+ ports, offering high port density and throughput. This switch supports advanced Layer 3 features and is optimized for modern data center fabrics.
Technical Information
| Model | QFX5120-48T-AFI |
| Port Count | 48 x 10Gbps RJ45 |
| Uplink Ports | 6 x 40Gbps QSFP+ |
| Switching Capacity | 1.28 Tbps |
Additional Specifications
| Forwarding Rate | 960 Mpps |
| Form Factor | 1U Rackmount |
| Operating System | Junos OS |
| Buffer | 9MB |
Product Description
The Juniper QFX5120-48T-AFI is a high-performance, fixed-configuration switch designed for modern data center networks, offering a robust platform for spine, leaf, or top-of-rack deployments. It provides 48 x 10 Gigabit Ethernet RJ45 ports for high-density server connectivity, ensuring ample bandwidth for demanding applications. Complementing the copper ports are six 40 Gigabit Ethernet QSFP+ ports, which can be used for high-speed uplinks to the spine layer or for connecting to other high-bandwidth devices, providing a total switching capacity of 1.28 Terabits per second (Tbps). Running on Juniper's Junos OS, the QFX5120-48T-AFI delivers a consistent and advanced feature set, including comprehensive Layer 3 routing capabilities, support for EVPN-VXLAN for network virtualization, and robust automation features. Its forwarding rate of 960 million packets per second (Mpps) ensures efficient packet processing with low latency, critical for data center operations. The switch also features a 9MB buffer, which helps in managing traffic bursts and preventing packet loss. Designed for reliability and operational efficiency in data center environments, the QFX5120-48T-AFI includes dual, redundant, hot-swappable power supplies and fans, ensuring high availability and minimizing downtime. Its 1U rack-mountable form factor allows for dense deployment within standard server racks. This switch is an ideal choice for organizations building scalable, high-performance, and agile data center fabrics that require advanced features and robust connectivity.



