JUNIPER QFX5120-48Y-AFO 48x 10/25GbE SFP28 8x 40/100GbE Network Switch Dual PSU For Sale

JUNIPER QFX5120-48Y-AFO 48x 10/25GbE SFP28 8x 40/100GbE Network Switch Dual PSU
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JUNIPER QFX5120-48Y-AFO 48x 10/25GbE SFP28 8x 40/100GbE Network Switch Dual PSU:
$6998.00

JUNIPER QFX5120-48Y-AFO 48x 10/25GbE SFP28 8x 40/100GbE Network Switch Dual PSU

comes with rails.Excess inventory from major tech company. TESTED AND WORKING. Please take the time to review the actual picture of the unit for extra reference on the item, unit pictured is the actual item you will be receiving. Units may have signs of wear, blemishes, scratches, discoloration, dents, etc. Be advised, for units that have multiple quantities. Please keep in mind that, some units may have more wear than others. No accessories provided. Please feel free to take the time to contact us with questions or concerns before offerding.QFX5120-48Y-AFO — High-Performance Switching for Modern Data Centers

The Juniper QFX5120-48Y-AFO is a 1U, top-of-rack switch engineered for high-density 25GbE and 100GbE environments. With 48 ports of 1/10/25GbE and 8 uplink ports of 40/100GbE, it supports high-speed east-west traffic and scalable fabric integration. Its front-to-back airflow and dual AC power supplies make it ideal for structured data center deployments with strict thermal and redundancy requirements. Key Features:

  • Scalability: Supports flexible port configurations to accommodate growth and future bandwidth needs.
  • Performance: Delivers high throughput and ultra-low latency for demanding applications like real-time analytics, video streaming, and virtualization.
  • Automation: Seamless integration with Junos automation and orchestration tools reduces operational complexity.
  • Reliability: Dual redundant power supplies and advanced high-availability features maximize uptime.
  • Security: Integrated MACsec encryption and robust access controls ensure secure data transmission.
  • Flexibility: Versatile connectivity options make it suitable for top-of-rack (ToR) or spine deployments in diverse environments.
Low-Latency Architecture with Broadcom Trident 3

Built on the Broadcom Trident 3 chipset, the Juniper QFX5120-48Y-AFO delivers sub-microsecond latency and hardware-accelerated packet forwarding. It supports up to 288,000 MAC addresses and 128,000 IPv4/IPv6 routes, making it suitable for both Layer 2 and Layer 3 networks. Integrated hardware-based classification and filtering allow for deep packet inspection and QoS enforcement without compromising performance.

Advanced Telemetry and Automation Support

Designed for operational visibility and efficiency, the Juniper QFX5120-48Y includes native support for Juniper Telemetry Interface (JTI), delivering high-frequency, low-latency metrics. The QFX5120-48Y also supports gRPC, OpenConfig, and sFlow for standards-based telemetry streaming. Zero Touch Provisioning (ZTP) and support for Junos Evolved CLI, REST APIs, Ansible, and Python ensure seamless integration into automated workflows and simplify large-scale deployments.

High Throughput and Flexible Port Configuration

With a non-blocking switching capacity of 2.56 Tbps and throughput of 1.44 Bpps, the Juniper QFX5120-48Y is optimized for performance-intensive environments. The 48 SFP28 access ports support speeds of 1G/10G/25G, while the 8 QSFP28 uplinks support 40G/100G or breakouts to 4x10G or 4x25G, offering backward compatibility and deployment flexibility.

Enterprise-Ready Hardware and Environmental Efficiency

The Juniper QFX5120-48Y-AFO includes redundant, hot-swappable AC power supplies, front-to-back airflow, and typical power consumption around 300W, depending on optics and traffic. The QFX5120-48Y ships with standard rack-mount rails for 19” configurations and offers USB console access along with NETCONF and REST API support for modern automation tools.

Regulatory Compliance and Environmental Standards

Juniper ensures compliance with major environmental and safety standards, including:

  • RoHS (Restriction of Hazardous Substances)
  • REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
  • WEEE (Waste Electrical and Electronic Equipment Directive)

These certifications support global deployment requirements and sustainable IT practices.

Fabric Integration and Scalable Architectures

The QFX5120-48Y-AFO supports EVPN-VXLAN, MPLS, and Juniper’s Virtual Chassis Fabric (VCF), making it ideal for multi-tenant cloud environments and distributed data center topologies. This flexibility allows you to scale easily across leaf-spine architectures, aggregation layers, or even regional edge deployments.

Security Built In

Security is integrated at every layer. The Juniper QFX5120-48Y-AFO supports MACsec encryption on uplinks, Role-Based Access Control (RBAC), and Control Plane Policing (CoPP) for DoS protection. Secure boot and digitally signed software images ensure end-to-end integrity. For centralized visibility and policy enforcement, it integrates with Juniper Security Director and the Mist Cloud.

Deployment Scenarios

The QFX5120-48Y-AFO is a high-performance, scalable switch engineered to handle demanding data center workloads with low latency and high throughput. Its combination of high-speed ports and advanced features makes it suitable for various deployment scenarios, from core data center fabrics to edge and colocation environments. Below are key use cases where this model excels.

Top-of-Rack (ToR)

The QFX5120-48Y-AFO connects servers with 48 fast 25GbE ports, minimizing latency and supporting high-performance workloads like virtualization and cloud applications.

Leaf in Spine-Leaf Fabrics

As a leaf switch, it aggregates traffic using 8 x 100GbE uplinks, enabling scalable and efficient data center fabrics with features like overlay networking and traffic segmentation.

NVMe Storage Aggregation

This switch handles high-speed NVMe storage traffic with ample bandwidth and buffering, ensuring smooth data flow between storage nodes and controllers.

Edge & Colocation

The Juniper QFX5120-48Y-AFO supports secure multi-tenant environments with advanced segmentation, ideal for edge data centers and colocation sites needing flexible, scalable connectivity.

Use Cases by Industry

The QFX5120-48Y-AFO serves a wide range of verticals:

  • Cloud Providers: High-density 25G/100G ToR switch for scalable virtual environments
  • Financial Services: Ultra-low latency switching for time-sensitive trading workloads
  • Media & Entertainment: Reliable 100G pipelines for uncompressed video workflows
Excess inventory from major tech company. Please take the time to review the actual picture of the unit for extra reference on the item, unit pictured is the actual item you will be receiving. Please feel free to take the time to contact us with questions or concerns before offerding.WAREHOUSE LOCATIONiL11-3
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