Juniper Networks QFX5120-32C-AFI Data Center Switch – 32x 100GbE QSFP28, Front-to-Back Airflow, 3.2Tbps, 1U (Hardware Only, Optional 1–3 Year Support)

The Juniper Networks QFX5120-32C-AFI is a high-performance, low-latency data center switch designed for modern cloud, enterprise, and service provider environments. As part of the QFX5120 Series, this compact 1U switch delivers exceptional scalability, flexibility, and automation capabilities for spine-leaf architectures and high-speed aggregation layers.

The QFX5120-32C-AFI features 32 QSFP28 ports, each supporting 100GbE connectivity, delivering an aggregate throughput of up to 3.2 Tbps. Each port can be flexibly configured for 40GbE or broken out into 4x25GbE or 4x10GbE connections, allowing organizations to optimize port utilization and adapt to evolving network requirements.

This model includes AFI (Airflow In), meaning front-to-back airflow, making it ideal for hot aisle/cold aisle data center deployments. The efficient thermal design ensures consistent performance under heavy workloads while maintaining energy efficiency.

Running on Junos OS, the switch supports advanced networking technologies such as EVPN-VXLAN for scalable Layer 2 and Layer 3 overlays, MPLS for service provider use cases, and robust BGP capabilities for large-scale routing. Integration with Juniper Apstra provides intent-based networking, enabling automation, validation, and simplified operations across the entire data center fabric.

The QFX5120-32C-AFI is built for reliability with redundant, hot-swappable power supplies and fan modules. It also supports advanced telemetry, streaming analytics, and programmability, providing deep visibility and proactive network management.

Security features such as MACsec encryption, access control lists (ACLs), and secure management interfaces help safeguard critical data and infrastructure.

Optional Juniper Care support services (1-Year, 3-Year, or 5-Year) are available, offering 24/7 technical assistance, software updates, and hardware replacement to ensure business continuity and maximum uptime.

Key Features:

• 32x 100GbE QSFP28 ports with breakout to 4x25GbE or 4x10GbE
• 3.2 Tbps throughput with ultra-low latency performance
• Front-to-back airflow (AFI) for optimized data center cooling
• Supports EVPN-VXLAN, MPLS, and advanced Layer 2/Layer 3 features
• Redundant, hot-swappable power supplies and fans for high availability