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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.
Limited Lifetime Warranty
You’ll find warranty coverage on the majority of our hardware.*
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Part Number: QFX5120-32C-AFI
Description: QFX5120-32C-AFI, 32x 100GbE, Back to Front AC Airflow In
Category: Switches
and more
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 QFX5120-32C-AFI is a high-performance data center switch designed to meet the demands of modern data centers. With its wire speed packet performance and very low latency, the QFX5120-32C-AFI is the ideal solution for enterprises looking to build extremely agile data centers.
The QFX5120-32C-AFI delivers exceptional throughput for data center server access and campus distribution switch featuring advanced capabilities. With its high-performance architecture, the QFX5120-32C-AFI ensures that network administrators can efficiently utilize network links while maintaining optimal performance across the entire Juniper infrastructure.
Powered by Juniper’s robust network operating system, the QFX5120-32C-AFI provides reliable operation even in demanding environments. The operating system runs on its own protected memory space, ensuring that process restarts occur with uninterrupted routing, making the QFX5120-32C-AFI an excellent choice for mission-critical applications.
The Juniper QFX5120-32C-AFI supports a wide range of protocols including Border Gateway Protocol (BGP), Internet Group Management Protocol (IGMP), Virtual Router Redundancy Protocol (VRRP), and Multiple Spanning Tree Protocol (MSTP). These capabilities allow the QFX5120-32C-AFI to connect multiple enterprise buildings seamlessly and support traditional fabric designs.
The QFX5120-32C-AFI excels in various deployment scenarios, from collapsed spine data center configurations to campus distribution switches. It can be used to deploy overlay networks including centrally routed bridging overlay and edge routed bridging overlay architectures, making it an adaptable solution for dynamic data centers.
The QFX5120-32C-AFI offers a comprehensive network virtualization overlay solution, allowing organizations to build more agile networks. This feature is particularly valuable for data centers requiring distributed edge routed gateways and support for bare metal servers alongside virtualized environments.
The QFX5120-32C-AFI integrates seamlessly with other Juniper Networks routers, EX Series Ethernet switches, and SRX Series Services Gateways, providing a cohesive network experience across the entire Juniper infrastructure.
| Feature | Specification |
| Form Factor | 1U |
| Dimensions (W x H x D) | 17.26 x 1.72 x 20.07 in (43.84 x 4.37 x 51 cm) |
| Transceiver Ports | 32 x QSFP28 ports supporting 100GbE, 40GbE, 4 x 25GbE, or 4 x 10GbE using breakout cables |
| Maximum Throughput | 6.4 Tbps |
| Maximum Forwarding Rate | 2.4 Bpps |
| Latency | Ultra-low latency (under 550 ns port-to-port) |
| Power Supply | 2 x hot-swappable power supplies (AC/DC) |
| Cooling | Front-to-back or back-to-front cooling options with redundant fans |
| Rack Mountable | Yes, with included rack mount kit |
The QFX5120-32C-AFI runs on Juniper’s robust network operating system and offers an extensive set of advanced features:
The Juniper QFX5120-32C-AFI supports numerous protocols crucial for enterprise networks:
The QFX5120-32C-AFI delivers wire speed packet performance with ultra-low latency (under 550 ns port-to-port), making it perfect for latency-sensitive applications in dynamic data centers. Its robust network operating system ensures reliability in demanding environments, while supporting both traditional fabric designs and modern overlay architectures. With 6.4 Tbps throughput and 32 QSFP28 ports, it provides the high-density connectivity and performance required by extremely agile data centers without compromising on reliability or flexibility.
The QFX5120-32C-AFI offers comprehensive network virtualization through its support for multiple overlay technologies including centrally routed bridging overlay and edge routed bridging overlay architectures. It enables distributed edge routed gateways and EVPN implementations that allow organizations to abstract logical network designs from physical infrastructure. This capability is particularly valuable for environments that need to support both bare metal servers and virtualized workloads simultaneously while maintaining consistent network policies and performance.
The QFX5120-32C-AFI excels in multiple deployment scenarios including collapsed spine data center configurations, campus distribution layers requiring advanced routing capabilities, and environments needing to connect multiple enterprise buildings. Its high port density and performance make it ideal for data center server access at speeds up to 100GbE, while its comprehensive protocol support allows it to function effectively in diverse network architectures from traditional designs to modern spine-leaf topologies.
The QFX5120-32C-AFI is engineered for high reliability with redundant hot-swappable power supplies and cooling systems with multiple airflow options. Its robust network operating system runs processes in protected memory spaces, ensuring that even during software updates or process restarts, routing continues uninterrupted. These features, combined with support for high-availability protocols like VRRP and Multichassis Link Aggregation, provide the resilience needed for mission-critical applications where downtime is not acceptable.
The QFX5120-32C-AFI seamlessly integrates with the entire Juniper ecosystem including Juniper Networks routers, EX Series Ethernet switches, and SRX Series Services Gateways. Its comprehensive management features include key performance indicator collection, visualization anomaly detection for root cause analysis, and network capacity planning tools that work across the entire infrastructure. This integration provides a cohesive networking experience with consistent management interfaces and policies, significantly simplifying operations across heterogeneous environments.
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.
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