Juniper QFX5120-48Y-AFI2 Switch

Key Features of the QFX5120-48Y-AFI2

Advanced Data Center Server Access

The Juniper QFX5120-48Y-AFI2 delivers exceptional data center server access capabilities with its high-density port configuration and robust routing capabilities. This powerful QFX5120-48Y-AFI2 switch serves as the foundation for extremely agile data centers, enabling organizations to efficiently utilize network links while maintaining optimal performance.

Robust Network Operating System

Powered by a robust network operating system, the QFX5120-48Y-AFI2 provides advanced routing capabilities that support critical protocols including Border Gateway Protocol (BGP), Dynamic Internet Protocol routing, and Inter-Domain Routing Protocol. Each process module runs independently in its own protected memory space, ensuring that process restarts maintain uninterrupted routing on the QFX5120-48Y-AFI2.

Network Virtualization Overlay Solution

The QFX5120-48Y-AFI2 excels as a network virtualization overlay solution, supporting both Centrally Routed Bridging Overlay and Edge Routed Bridging Overlay deployments. Organizations can easily deploy overlay networks with the QFX5120-48Y-AFI2, significantly increasing performance in dynamic data centers through distributed edge routed gateways and MAC virtual routing functionality.

Intelligent Buffer Management

The QFX5120-48Y-AFI2 features an intelligent buffer mechanism that optimizes the handling of both wired and wireless traffic. With support for Weighted Random Early Detection and VLAN congestion avoidance capabilities, the QFX5120-48Y-AFI2 delivers providing deterministic performance even during peak network loads.

Versatile Deployment Options

Whether deployed as a campus distribution switch featuring advanced capabilities or as part of a collapsed spine data center architecture, the QFX5120-48Y-AFI2 offers exceptional flexibility. The QFX5120-48Y-AFI2 can efficiently connect multiple enterprise buildings or serve as a campus core switch, making it an ideal solution for diverse network infrastructure blocks.

Physical Specifications of the QFX5120-48Y-AFI2

• Platform: Juniper QFX5120-48Y-AFI2
• Form Factor: 1U rack-mountable
• Dimensions (H × W × D): 1.72″ × 17.36″ × 20.48″
• Weight: 24.5 lbs (11.1 kg)
• Airflow: Front-to-back (AFI2 designation)
• Fan Modules: Redundant, hot-swappable

Network Capabilities

• Port Configuration:
  • 48 × 25GbE SFP28 ports (Support for 1/10/25GbE)
  • 8 × 100GbE QSFP28 ports (Support for 40/100GbE)
• Management Ports: 1 × RJ-45 console, 1 × USB, 1 × management Ethernet

Protocol Support

• Spanning Tree: Spanning Tree Protocol (STP), Rapid Spanning Tree Protocol (RSTP), Multiple Spanning Tree Protocol (MSTP), Bridge Protocol Data Unit (BPDU)
• Routing: Border Gateway Protocol (BGP), Dynamic Internet Protocol, Inter-Domain Routing Protocol
• High Availability: Virtual Router Redundancy Protocol, Link Aggregation Control Protocol, Link Aggregation Groups
• Multicast: Internet Group Management Protocol
• Management: Internet Standard Management Framework, Simple Network Time Protocol
• Transport: Transmission Control Protocol (TCP), User Datagram Protocol (UDP), Session Initiation Protocol (SIP)

Performance Specifications

• Switching Capacity: 2 Tbps
• Forwarding Rate: Up to 1.5 Bpps
• Latency: Ultra-low (microseconds)
• Buffer: 32MB shared intelligent buffer
• Unified Forwarding Table: User-configurable allocation

Security Features

• Access Control: Filters secure interface login, role-based access control
• Encryption: Link layer data confidentiality
• Authentication: Data origin authentication, multi-factor options
• Monitoring: Key performance indicator collection, visualization anomaly detection root

At Network Republic, our end-user accounts are covered by a 1-Year Warranty on all hardware—whether New, New Open Box, New Pull, Refurbished, or Refurbished by Manufacturer —from the date of delivery. This warranty covers hardware defects under normal use and allows for repair, replacement, or in-house credit at our discretion.

For resellers and wholesale purchases, we offer a 30-Day Warranty limited strictly to functional issues or defects upon arrival, including dead-on-arrival (DOA) items; it does not apply to problems arising after prolonged use. Resellers are responsible for inspecting and testing products within the 30-day window. This warranty excludes accidental damage, misuse, cosmetic wear, third-party modifications, and software-related issues unrelated to hardware failure. Check out our full warranty policy here.

Software licenses are not covered under the standard return and warranty policies and need to be activated on the hardware within 7 days of receipt. Any issues need to be reported immediately, within 10 days, so we can issue an exchange. Under no circumstances will refunds be issued for software licenses.