The Juniper Networks QFX5100-24Q-3AFO Data Center Switch is a compact, high-performance 40GbE leaf and spine switch engineered for modern cloud data centers, high-performance computing (HPC), and enterprise network fabrics. With 24 fixed QSFP+ 40GbE ports and two expansion slots, this switch delivers exceptional scalability, flexibility, and throughput in a space-efficient 1RU form factor.
Designed for performance-critical environments, the QFX5100-24Q-3AFO offers an impressive 2.56 Tbps switching capacity and 1.44 Bpps forwarding rate, ensuring wire-speed packet processing for demanding workloads. Its cut-through architecture delivers ultra-low latency (<550 nanoseconds), making it ideal for latency-sensitive applications such as financial trading, real-time analytics, and clustered computing.
The switch supports a wide range of advanced fabric architectures, including EVPN-VXLAN, Virtual Chassis, Virtual Chassis Fabric (VCF), and QFabric, enabling seamless scalability and simplified network management across large-scale deployments. With support for hardware-based VXLAN L2/L3 gateway functionality, it integrates effortlessly into virtualized and software-defined networking (SDN) environments.
The two expansion slots provide additional flexibility, allowing administrators to add 40GbE or 10GbE modules to meet evolving network requirements. Using breakout cables, the switch can support up to 104 × 10GbE ports, offering high-density connectivity for mixed-speed deployments.
Built for reliability, the QFX5100-24Q-3AFO features dual hot-swappable power supplies, N+1 redundant fans, and Unified In-Service Software Upgrade (ISSU) for zero-downtime maintenance. The front-to-back airflow (AFO – Airflow Out) design makes it ideal for cold aisle data center environments, ensuring efficient thermal management.
Fully integrated with Junos OS, and compatible with automation tools such as Python, Ansible, Puppet, and Chef, the Juniper QFX5100-24Q-3AFO provides a scalable, high-density, and future-ready switching solution for next-generation data center infrastructures.
