The Juniper QFX5120-48Y-AFO is a high-performance, low-latency data center switch designed for modern enterprise and cloud environments, particularly in spine-leaf and Top-of-Rack (ToR) architectures.
It features 48x SFP28 ports supporting 1G, 10G, and 25G Ethernet, along with 8x QSFP28 uplink ports supporting 40G and 100G connectivity, providing flexible and scalable high-speed networking for demanding workloads.
This model uses AFO (Airflow Out) design, meaning front-to-back airflow, making it ideal for hot aisle/cold aisle data center deployments.
Built in a compact 1U form factor, the switch delivers up to 4 Tbps switching capacity and around 2 billion packets per second (Bpps) forwarding performance, ensuring wire-speed Layer 2 and Layer 3 operations with ultra-low latency (~550–800 ns).
It runs on Juniper Junos OS, offering advanced networking features such as EVPN, VXLAN, MPLS, and BGP, along with automation and telemetry capabilities for modern data center environments.
The switch includes redundant power supplies and hot-swappable fan modules, ensuring high availability and reliability for mission-critical operations.
It is widely used in leaf layer, aggregation, and high-speed data center deployments, where high bandwidth, scalability, and low latency are critical.
