Juniper QFX5110-48S-AFO: High-Density 10GbE Switching for Scalable, Modern Data Centers The Juniper Networks QFX5110-48S-AFO is a compact, high-performance 10GbE switch engineered to meet the rigorous demands of modern data centers and enterprise networks. Combining advanced telemetry, programmable automation, and scalable fabric integration, it empowers organizations to build agile, resilient infrastructure capable of supporting next-generation workloads. At a Glance: High-Performance 10GbE Designed for Future-Ready Networks The Juniper QFX5110-48S-AFO Series Ethernet Switches are high-performance and feature-rich switches designed for modern data center environments. With 48 ports of 10GbE and advanced features such as Virtual Chassis technology, these switches offer seamless scalability and flexibility. The QFX5110-48S-AFO switches provide low-latency and high-bandwidth connectivity, ensuring optimal performance for mission-critical applications. Featuring Junos OS, they deliver advanced automation, programmability, and extensive network management capabilities. These Ethernet switches are built for high availability with redundant components and hot-swappable modules, minimizing downtime and ensuring uninterrupted network service. Their energy-efficient design makes them environmentally friendly and cost-effective data center solutions. Juniper QFX110-48S-AFO Features: High Availability: Built for high availability with redundant components and hot-swappable modules, ensuring uninterrupted network service. 48 Ports of 10GbE: Offers 48 ports of 10GbE for high-speed connectivity in data center environments. Virtual Chassis Technology: Supports Virtual Chassis technology for seamless scalability and flexible network expansion. Low Latency Performance: Provides low-latency and high-bandwidth connectivity, ensuring optimal performance for critical applications. Junos OS Integration: Operates on Junos OS, delivering advanced automation, programmability, and extensive network management capabilities. Junos OS Integration: Operates on Junos OS, delivering advanced automation, programmability, and extensive network management capabilities. Advanced Telemetry and Streaming Analytics: Supports in-band telemetry (INT) and Juniper’s Streaming Telemetry to provide granular, real-time insights into packet flows and device health for precise network monitoring. VXLAN Routing and EVPN Support: Enables scalable Layer 2 and Layer 3 overlay networks using VXLAN with EVPN control plane, ideal for multi-tenant data centers and cloud environments. 802.3bt Power over Ethernet (PoE) Support: Provides high power delivery per port (up to 90W), supporting emerging edge devices such as wireless access points and IoT sensors. Broad Programmability with Python and NETCONF/YANG: Offers programmable interfaces and APIs including Python scripting and NETCONF/YANG models to enable customized automation and integration with DevOps tools. Hardware-Based MACsec Encryption: Delivers line-rate MACsec encryption on all 10GbE ports to ensure secure data transmission and protect against man-in-the-middle attacks at the hardware level. High-Performance Switching, Ultra-Low Latency At its core, the Juniper QFX5110-48S-AFO is powered by Broadcom’s Trident II ASIC, delivering up to 1.76 Tbps of switching capacity and 1.32 billion packets per second (Bpps) of forwarding performance. This results in ultra-low latency—typically under 550 nanoseconds—making it ideal for latency-sensitive applications such as high-frequency trading, virtualized data centers, and real-time analytics. Flexible Port Configuration and Scalable Uplinks The switch’s 1U chassis houses 48 SFP ports for 1GbE/10GbE access, paired with 4 QSFP28 uplink ports supporting 40GbE or 100GbE speeds. Each QSFP28 port can be broken out into four 10GbE ports via breakout cables, increasing total port density up to 64x 10GbE. This flexibility allows smooth scaling from medium-sized deployments to dense spine-leaf fabric architectures without requiring significant rewiring. Smart Automation & Telemetry Built-In The QFX5110-48S-AFO supports Juniper’s Junos Telemetry Interface (JTI), enabling real-time, granular network monitoring for proactive issue detection and analytics. Automation features such as Zero Touch Provisioning (ZTP), Python scripting, REST APIs, and orchestration tools like Ansible and Junos Space simplify configuration and accelerate deployment. These programmable capabilities align with intent-based networking and modern DevOps workflows, reducing operational complexity and enhancing network agility. Seamless Fabric & Network Virtualization Designed for scalable fabric topologies, the QFX5110-48S-AFO fully supports EVPN-VXLAN overlays, Layer 2/Layer 3 protocols, and MPLS. This enables seamless multi-tenant segmentation and smooth interoperability within spine-leaf architectures—perfect for hyperscale data centers, private clouds, and large enterprise cores. Its rich L2/L3 feature set also makes it suitable for Metro Ethernet and service provider edge scenarios. Robust Security for Trusted Network Operations Security is deeply embedded in the qfx5110-48s, including support for MACsec (IEEE 802.1AE) encryption, dynamic ARP inspection, DHCP snooping, control plane policing (CoPP), and advanced access control lists (ACLs). These safeguards protect edge and aggregation layers from common attack vectors and unauthorized traffic, ensuring packet integrity and trust throughout the fabric. Efficient Cooling & High Reliability Featuring front-to-back airflow (AFO) optimized for hot aisle/cold aisle cooling designs, the Juniper QFX5110-48S-AFO fits cleanly into modern data center thermal management strategies. It includes hot-swappable redundant power supplies and fans, enhancing availability and minimizing downtime. Typical power consumption ranges between 250 to 350 watts, balancing robust performance with energy efficiency to support sustainable operations. Ready to Deploy, Easy to Manage The QFX5110-48S-AFO requires a standard data center environment with 100-240V AC power input and adequate rack space for its 1U form factor. Operating temperatures range from 0°C to 40°C, and proper airflow is essential to maintain thermal performance. Network architects should evaluate infrastructure compatibility, including cabling standards (supporting a wide range of SFP and QSFP28 transceivers, DACs, and AOCs), power provisioning, and cooling capacity. Planning for Future Scalability is Critical Pairing the Juniper QFX5110-48S-AFO with complementary Juniper models like the QFX5110-48T or QFX5120 series ensures smooth network expansion without bottlenecks. Comprehensive software compatibility with Junos OS unlocks seamless integration with telemetry, automation, and security features. Optics & Connectivity That Fit Your Needs The QFX5110-48S-AFO supports a diverse optics portfolio: SFP : 1G/10G SR, LR, LRM, DAC, AOC QSFP28: 40G/100G SR4, LR4, PSM4, DAC, AOC Breakout cables for QSFP28 to 4x SFP connections This versatility supports both greenfield deployments and brownfield infrastructure, suitable for short-range intra-data center links or longer campus/metro connections. How It Stacks Up Against Other Juniper Models QFX5120-48Y vs QFX5110-48S-AFO: The QFX5120-48Y targets newer 25GbE access environments with 100GbE uplinks, while the QFX5110-48S-AFO focuses on dense 10GbE access with backward compatibility for 1GbE, ideal for organizations standardizing on these speeds. QFX5100-48S vs QFX5110-48S-AFO: The QFX5110 series introduces native MACsec and enhanced EVPN-VXLAN support, which are absent in the earlier QFX5100, making it better suited for modern fabric deployments. QFX5120-48T vs QFX5110-48S-AFO: The QFX5120-48T offers 25GbE over copper with 100GbE uplinks, catering to high-performance, top-of-rack deployments with RJ-45 connectivity, while the QFX5110-48S-AFO is optimized for SFP fiber environments that prioritize 10GbE aggregation and legacy compatibility. QFX5200-32C vs QFX5110-48S-AFO: Designed for high-density 100GbE environments, the QFX5200-32C delivers massive throughput and flexible port configurations for spine or leaf roles, whereas the QFX5110-48S-AFO remains a cost-effective option for 10GbE-focused access layers with moderate uplink demands. QFX10002-36Q vs QFX5110-48S-AFO: The QFX10002-36Q is a high-capacity, fixed-core switch with deep buffering and scale-out routing capabilities ideal for data center spines and aggregation, while the QFX5110-48S-AFO suits access layer roles with compact form factor and lower power consumption. Ideal Use Cases The QFX5110-48s adapts seamlessly to a wide range of networking scenarios, delivering both performance and reliability. Its flexible design ensures it can handle evolving demands while maintaining operational efficiency. Top-of-Rack (ToR) in Spine-Leaf Fabrics Designed for environments that demand dense 10GbE server connectivity with scalable uplinks, the switch excels in high-performance leaf roles within modern spine-leaf architectures. Enterprise Core and Campus Distribution Offers robust Layer 2 and Layer 3 features along with high throughput, making it well-suited for core routing and aggregation in enterprise networks and large campus environments. Private and Hybrid Cloud Deployments Supports EVPN-VXLAN overlays and automation tools, providing the flexibility and scalability required for cloud-ready infrastructures and virtualized data centers. Metro Ethernet and Service Provider Edge Equipped with MPLS, multicast, and advanced telemetry, the switch meets the needs of service provider edge deployments and carrier-grade Ethernet applications. Compliant & Green Juniper designed the QFX5110-48S-AFO to comply with industry standards and environmental regulations, including: RoHS-6 and REACH hazardous substance restrictions Select models certified to NEBS Level 3 Alignment with ENERGY STAR and global energy efficiency programs These support enterprise sustainability goals and help meet regulatory requirements worldwide. Juniper QFX Reference Guides & Comparisons Juniper QFX vs EX Series Switches – Which Platform Fits Your Deployment? Juniper QFX5100 vs QFX5110 vs QFX5200 – Detailed Data Center Comparison A Future-Ready 10GbE Platform The Juniper QFX5110-48S-AFO balances performance, port density, automation, and security in a compact, energy-efficient package. Its flexible uplinks, comprehensive telemetry, and native support for fabric overlays make it an excellent choice for organizations aiming to build programmable, resilient, and scalable data center networks. For purchasing, configuration support, and global delivery, partner with a trusted reseller such as BrightStar Systems. We offer competitive pricing, one-year warranties, and free international shipping. Also available: QFX5110-48S-AFI with port-side intake airflow (AFI).
