QFX5110-48S-D-AFO2, Juniper QFX5110 Switch, 48x10GE SFP+/4x100GE QSFP28/DC airflow

The Juniper QFX5110-48S-D-AFO2 is a high-performance Juniper enterprise data center switch designed for top-of-rack and 10GbE aggregation deployments. This Layer 3 Ethernet switch delivers up to 1.44 Tbps switching capacity and up to 1,070 Mpps forwarding rate, making it suitable for modern spine–leaf architectures in Asia, Europe, Africa, and North America. With 48 × 1/10GbE SFP/SFP+ downlink ports and 4 × 40/100GbE QSFP+/QSFP28 uplinks, the QFX5110-48S-D-AFO2 supports high-density server access while providing flexible migration to 40GbE and 100GbE cores. It runs the Junos OS, so distributors and system integrators can standardize on a common operating system, simplifying deployment and long-term maintenance.

For small and medium integrators, the switch offers clear benefits: a compact 1U form factor, front-to-back (AFO) airflow for hot-aisle/cold-aisle data center layouts, and dual redundant, hot-swappable DC power supplies for continuous service. The 16 MB shared packet buffer and large MAC address table (up to 288,000 entries) help maintain low latency and stable performance under bursty east–west traffic, which is typical in virtualized and cloud environments. Rich Layer 2 features such as 802.1Q VLANs, Q-in-Q, link aggregation, and STP/RSTP/MSTP allow flexible segmentation and resilient access designs across different enterprise and carrier scenarios.

The Juniper QFX5110-48S-D-AFO2 also supports advanced Layer 3 routing, including static routes, RIP, OSPF, IS-IS, and BGP, with both IPv4 and IPv6 unicast and multicast, so it can act as a ToR switch or a small aggregation router in distributed campuses and regional data centers. With up to 4,096 VLANs and large routing table capacities (up to 128,000 IPv4 routes and 64,000 IPv6 routes), it fits multi-tenant environments, cloud service platforms, and service provider PoPs. Out-of-band management Ethernet, console, and USB ports make remote operations and zero-touch provisioning more convenient for global distributors and operators.

Engineered for reliable operation, the QFX5110-48S-D-AFO2 works in typical data center conditions (0° C to 40° C, 5% to 90% non-condensing humidity) and complies with relevant IEC/EN/UL safety and EMC standards, depending on region. This helps partners in different markets meet local compliance requirements without redesigning solutions. For end users, the result is a resilient 10GbE/40GbE/100GbE platform that supports current workloads and future growth, while keeping network design straightforward and easy to manage.