15+ Years of Proven Excellence
Delivering reliable IT hardware solutions since 2009.
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On all on-hand orders placed before 2 pm CST.
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You’ll find warranty coverage on the majority of our hardware.*
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Part Number: QFX5110-48S-D-AFI2
Description: 48 SFP+ and 4 QSFP28, back to front air flow, DC
Category: Juniper QFX5100 Series Switches, Juniper Switches, Switches
15+ Years of Proven Excellence
Delivering reliable IT hardware solutions since 2009.
Same-Day Shipping
On all on-hand orders placed before 2 pm CST.
Limited Lifetime Warranty
You’ll find warranty coverage on the majority of our hardware.*
Terms & Conditions*
The Juniper QFX5110-48S-D-AFI2 delivers exceptional server access speeds through its advanced 48-port SFP+ configuration designed specifically for dynamic data centers and rapidly adopting cloud services environments. This high performance switching platform incorporates intelligent buffer management and weighted random early detection mechanisms that ensure optimal performance even during traffic bursts common in evolving data centers. The QFX5110-48S-DC-AFI2 features robust routing capabilities and advanced software features that enable server densities enabled by modern virtualization technologies while maintaining the low latency characteristics required for mission-critical applications. With comprehensive support for data center interconnect applications and server virtualization management, this platform enables organizations to deploy sophisticated network architectures that support cloud and SDN adoption initiatives.
Built on a robust network operating system, the QFX5110-48S-D-AFI2 incorporates process modules running independently in their own protected memory space, ensuring process restarts and uninterrupted routing operations even during software maintenance. This advanced architecture includes nonstop active routing capabilities and comprehensive control plane features that maintain network stability while supporting advanced software licenses for premium functionality. The platform supports zero touch provisioning and network automation features that dramatically reduce deployment complexity in data center environments. Enabling users to deploy sophisticated network services through advanced software features including virtual extensible LAN, multichassia link aggregation group, and comprehensive protocol operations that enhance network reliability and performance.
The Juniper QFX5110-48S-D-AFI2 provides exceptional protocol support including virtual router redundancy protocol, border gateway protocol, and intra domain routing protocol capabilities essential for modern data center deployments. The platform incorporates comprehensive support for virtualization protocols including bridge protocol data unit processing, link aggregation control protocol, and multiple spanning tree protocol implementations. Advanced features include BGP add path support, specific BGP extended community handling, and internet standard management framework compliance that ensure seamless integration with existing network infrastructure. The unified forwarding table and flexible forwarding table architecture enable efficient traffic processing while supporting assign forwarding class capabilities and priority based flow control for sophisticated quality of service implementations.
Engineered for demanding data center environments, the QFX5110-48S-D-AFI2 incorporates DC power supply options and comprehensive environmental specifications that ensure reliable operation in challenging conditions. The platform features advanced thermal management with AFI2 airflow optimization that provides efficient cooling while maintaining optimal performance characteristics. Environmental design includes comprehensive monitoring capabilities and filters secure interface login mechanisms that enhance security while providing detailed operational visibility. The robust construction includes redundant trunk group support, port error disable functionality, and comprehensive SNMP management frameworks describing system status and performance metrics essential for maintaining optimal network operations in demanding data center environments.
| Specification | Details |
| Model | QFX5110-48S-D-AFI2 |
| Form Factor | 1RU rack mountable |
| Dimensions (HxWxD) | 1.75″ x 17.4″ x 22.8″ (4.4 x 44.2 x 57.9 cm) |
| Weight | 26 lbs (11.8 kg) |
| Power Supply | DC power supply |
| Power Consumption | 350W maximum |
| Cooling | AFI2 optimized airflow design |
| SFP+ Ports | 48 x 1/10GbE SFP+ |
| Uplink Ports | 4 x 40GbE QSFP+ |
| Transceiver Ports | Hot-swappable SFP/SFP+ support |
| Console Ports | 1 x RJ-45, 1 x USB |
| Management Port | 1 x 10/100/1000 Ethernet |
| Switching Capacity | 1.44 Tbps |
| Forwarding Rate | 1.07 Bpps |
| Buffer Memory | 16 MB shared buffer |
| MAC Address Table | 288,000 entries |
| Operating Temperature | 0°C to 45°C |
| Storage Temperature | -40°C to 70°C |
The QFX5110-48S-D-AFI2 maximizes port density with 48 SFP+ interfaces while incorporating advanced thermal management through AFI2 airflow optimization. The platform’s specifications enable deployment in demanding data center environments where consistent performance and reliability are essential.
Running Junos OS, the QFX5110-48S-D-AFI2 provides comprehensive Layer 2 and Layer 3 switching capabilities optimized for data center network applications. Key software features include:
The platform’s operating system provides consistent implementation across Juniper Networks routers and switches, ensuring operational consistency and simplified management across distributed deployments.
The QFX5110-48S-D-AFI2 delivers exceptional performance through its intelligent buffer mechanism and random early detection capabilities that ensure optimal traffic management even during congestion scenarios. The platform supports advanced software licenses that enable premium software features including enhanced routing capabilities and network automation functionality.
When compared to other models in the QFX5110 family, the 48S-D-AFI2 provides optimal density for 10GbE server connectivity while incorporating DC power supply options for specialized deployment environments. While other QFX5110 variants offer different port configurations, the 48S-DC-AFI variant delivers the specific combination of high-density SFP+ connectivity and DC power capability needed for data center applications requiring reliable server connectivity.
The QFX5110-48S-D-AFI2 incorporates comprehensive management capabilities including describing SNMP management frameworks, secure interface login mechanisms, and zero touch provisioning that dramatically reduce deployment complexity. The platform supports network automation features that enable dynamic configuration and policy enforcement based on changing network conditions.
Advanced management features include link aggregation groups, multichassis link aggregation group support, and port error disable functionality that enhance network reliability while providing comprehensive operational visibility. The platform can generate unique license keys for advanced features while maintaining uplink connectivity and consistent performance across all deployment scenarios.
The Juniper QFX5110-48S-D-AFI2 provides 48 SFP+ ports supporting 1GbE and 10GbE server connectivity with comprehensive server access speeds that meet the demands of modern data center deployments. The platform’s intelligent buffer management and low latency characteristics ensure optimal performance for server connectivity applications where consistent throughput is essential. Its support for server virtualization management and advanced protocol operations makes it ideal for environments with high server densities enabled by modern virtualization technologies.
The QFX5110-48S-D-AFI2 incorporates AFI2 airflow optimization that provides front-to-back cooling designed to work efficiently with hot aisle/cold aisle data center architectures. This specialized airflow design ensures optimal thermal management while reducing the load on facility cooling systems, contributing to improved energy efficiency and reduced operational costs. The advanced thermal design enables reliable operation even in demanding data center environments where space and cooling constraints require efficient heat dissipation.
The QFX5110-48S-D-AFI2 supports comprehensive network virtualization including virtual extensible LAN, VLAN congestion avoidance capabilities, and support for virtualization protocols essential for cloud and SDN adoption initiatives. The platform’s advanced software features enable network automation and zero touch provisioning that simplify deployment in rapidly evolving cloud environments. These capabilities, combined with robust routing capabilities and flexible forwarding table architecture, enable organizations to build scalable virtualized networks that adapt to changing application requirements.
The QFX5110-48S-D-AFI2 implements process modules running independently in their own protected memory space, ensuring that individual process restarts do not affect uninterrupted routing operations or other system functions. This architecture provides exceptional fault isolation that prevents single component failures from affecting the entire system, making it ideal for mission-critical data center applications where availability cannot be compromised. The nonstop active routing capabilities ensure continuous network operation even during software maintenance or unexpected issues.
The QFX5110-48S-D-AFI2 provides comprehensive protocol support including border gateway protocol with BGP add path capabilities, specific BGP extended community handling, and advanced routing protocol implementations that enable sophisticated traffic engineering. The platform supports multiple spanning tree protocol, rapid spanning tree protocol, and link aggregation control protocol implementations that ensure reliable connectivity and loop prevention. Additionally, features like virtual router redundancy protocol, priority based flow control, and comprehensive internet protocol support provide the advanced capabilities needed for complex data center network deployments that require enterprise-grade functionality.
At Network Republic, our end-user accounts are covered by a 1-Year Warranty on all hardware—whether New, New Open Box, New Pull, Refurbished, or Refurbished by Manufacturer —from the date of delivery. This warranty covers hardware defects under normal use and allows for repair, replacement, or in-house credit at our discretion.
For resellers and wholesale purchases, we offer a 30-Day Warranty limited strictly to functional issues or defects upon arrival, including dead-on-arrival (DOA) items; it does not apply to problems arising after prolonged use. Resellers are responsible for inspecting and testing products within the 30-day window. This warranty excludes accidental damage, misuse, cosmetic wear, third-party modifications, and software-related issues unrelated to hardware failure. Check out our full warranty policy here.
Software licenses are not covered under the standard return and warranty policies and need to be activated on the hardware within 7 days of receipt. Any issues need to be reported immediately, within 10 days, so we can issue an exchange. Under no circumstances will refunds be issued for software licenses.
Our team of professionals are experts in networking hardware configurations and can assist you at any time during your purchasing process. We always recommend great price-performance alternatives based on current market price and availability. In need of assistance or looking for a specific part number? Request a quote today or chat with one of our IT specialists.

