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Gordon Whitely
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Excellent QSFP density with stable performance in our leaf layer deployment.
QFX5100-24Q-AFI
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QFX5100, 24 QSFP ports, 2 expansion slots, redundant fans, r...
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QFX5100-24Q-AFI
- Description:
- QFX5100, 24 QSFP ports, 2 expansion slots, redundant fans, redundant power supplies, PSU to built in port air flow.
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- Brand:
- Juniper
- GTIN:
- 832938068049
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QFX5100-24Q-AFI Overview
QFX5100-24Q-AFI is a high-performance data center switch designed with a modern architecture that maximizes throughput and low latency while providing flexible power options and a variety of port types for diverse connectivity needs. Its built-in stacking capability and scalable design empower network operators to expand their infrastructures seamlessly, thereby supporting both Layer 2 and Layer 3 operations in critical enterprise and cloud deployments.
Engineered for robust performance, the QFX5100-24Q-AFI is optimized for use cases ranging from campus networks to service provider environments where reliability and speed are paramount. Its meticulous design, featuring advanced switching capacity and redundant power support, ensures efficient handling of intensive traffic loads while enabling smooth integration into larger network ecosystems.
QFX5100-24Q-AFI price is is available on request. Get immediate quote.
Request bulk order quote for QFX5100-24Q-AFI for additional pricing. Browse the full Juniper Qfx5100 Series Switches series or explore all Juniper products.
QFX5100-24Q-AFI Specifications
- Product Type
- Switch
- Power Source
- Redundant Power Supply / AC Power Supply
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Power Consumption
- 255 W
- Number of Ethernet Ports
- 12–24 Ports
- Number of Downlink Ports
- 24 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- Media Type Supported
- Fiber
- Redundant Power Supply Supported
- Yes
- Manufacturer Part Number
- QFX5100-24Q-AFI
- Uplink Configuration
- 40G
- IOS
- IP Lite
- POE Support
- Non POE
- SFP Ports
- 24 SFP Ports
- Memory
- 512 MB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Port/Expansion Slot Details
- 24 QSFP+ ports with 4 dedicated SFP management ports
- Flash Memory
- 256 MB
- Switching Capacity
- 1280 Gbps
- Switching Capacity with Stacking
- 2560 Gbps
- Product Name
- Juniper QFX5100-24Q-AFI Data Center Switch
- Height
- 1.75 inches
- Width
- 17.5 inches
- Depth
- 12 inches
- Weight
- 7 lbs
QFX5100-24Q-AFI Use Case
High-Density Leaf-Spine Fabric for Hyperscale Data Centers
In a hyperscale environment supporting 10,000+ virtualized workloads, the QFX5100-24Q-AFI delivers 24 QSFP 100GbE ports as spine nodes aggregating server leaf switches. Dual expansion slots host 400GbE uplinks to core fabrics, while redundant fans and power supplies with consistent PSU-to-port airflow ensure zero downtime under peak east-west traffic. Benefit: Guarantees non-stop, low-latency connectivity at 99.999% availability for mission-critical cloud workloads.
AI/ML Training Cluster Interconnect with Scalable Bandwidth
For an enterprise AI lab running GPU-accelerated deep learning, the QFX5100-24Q-AFI connects 40 GPU servers via 100GbE QSFP ports and supports future expansion with two 200GbE line modules. Redundant cooling and power create a fault-tolerant fabric that sustains multi-GPU synchronization traffic. Benefit: Delivers scalable, high-throughput interconnect with deterministic latency, accelerating model training by up to 30% while eliminating single points of failure.
Metro Ethernet Edge for Multi-Tenant Service Providers
A regional service provider uses the QFX5100-24Q-AFI as an edge switch in its metro ring, aggregating 20 enterprise customer circuits at 100GbE and provisioning DIA services via expansion modules. Redundant PSUs and front-to-back airflow maintain carrier-grade reliability in hardened CO environments. Benefit: Enables rapid on-demand service provisioning with SLA-backed uptime, boosting revenue per port by 25% and reducing operational risk.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| QFX5100-24Q-AFI |  QFX5100-48T-AFO |  QFX5100-48S-D-3AFI |  QFX5100-24Q-AFO |  QFX5100-24Q-3AFO | |
|---|---|---|---|---|---|
| Depth | 12 inches | 17.5 inches | 17.5 inches | 18.5 inches | 17 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 40G | 10/100/1000 |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 1.75 inches | 1.75 inches | 1.73 inches |
| IOS | IP Lite | IP Services | IP Services | Junos OS | IP Lite |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | N/A | 10/100/1000 |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | QFX5100-24Q-AFI | QFX5100-48T-AFO | QFX5100-48S-D-3AFI | QFX5100-24Q-AFO | QFX5100-24Q-3AFO |
| Media Type Supported | Fiber | Twisted Pair | Fiber | Fiber | Fiber |
| Memory | 512 MB | 4 GB | 4 GB | 256 MB | 4 GB |
| Number of Downlink Ports | 24 Ports | N/A | 48 Ports | 24 Ports | 24 Ports |
| Number of Ethernet Ports | 12–24 Ports | 24–48 Ports | 24–48 Ports | 12–24 Ports | 12–24 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | 24 QSFP+ ports with 4 dedicated SFP management ports | 48x 10/100/1000BASE-T ports; 2x 10GbE SFP+ uplink ports | N/A | 24 x 40GbE QSFP+ Ports | 24 QSFP+ ports |
| Power Consumption | 255 W | N/A | 330W | 200 W | 370W |
| Power Source | Redundant Power Supply / AC Power Supply | AC Power Supply | Redundant Power Supply / AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Juniper QFX5100-24Q-AFI Data Center Switch | Juniper QFX5100-48T-AFO | Juniper Networks QFX5100-48S-D-3AFI | Juniper QFX5100-24Q-AFO | Juniper QFX5100-24Q-3AFO |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | Yes | No | Yes | No | No |
| SFP Ports | 24 SFP Ports | 2 SFP+ Ports | 48 SFP Ports | N/A | N/A |
| Switching Capacity | 1280 Gbps | 720 Gbps | 1280 Gbps | 1440 Gbps | 1440 Gbps |
| Switching Capacity with Stacking | 2560 Gbps | 1.44 Tbps | 2560 Gbps | N/A | N/A |
| Uplink Configuration | 40G | 10G | 10G | 40G | 40G |
| Weight | 7 lbs | 12 lbs | 18 lbs | 12 lbs | 8 lbs |
| Width | 17.5 inches | 17.5 inches | 19 inches | 17.5 inches | 17.5 inches |
Reviews & Ratings
M
Martin Holbrook
5
Airflow-in design fit perfectly with our rack cooling strategy.
P
Philip Turner
5
Low latency switching and consistent throughput under load.
A
Anthony Caldwell
5
Reliable operation with no packet drops observed.
J
Julian Porter
5
Strong choice for spine leaf architectures.
Questions & Answers
What are the key features of the Juniper QFX5100-24Q-AFI switch?
The QFX5100-24Q-AFI delivers 24 QSFP+ ports, two expansion slots, redundant fans, dual power supplies, and front-to-back (PSU to port) airflow for high-performance data center networking.
What is the switching capacity of the QFX5100-24Q-AFI?
The QFX5100-24Q-AFI supports up to 1.92 Tbps of switching capacity and 1.44 Bpps of packet forwarding performance for ultra-low latency.
How many QSFP ports does the QFX5100-24Q-AFI provide?
This model includes 24 QSFP+ ports, each supporting 40GbE or breakout to 4×10GbE for flexible data center connectivity.
What expansion options are available on the QFX5100-24Q-AFI?
The switch features two rear-facing expansion slots that accommodate additional line cards or uplink modules for growth and uplink flexibility.
Does the QFX5100-24Q-AFI support front-to-back airflow?
Yes, the QFX5100-24Q-AFI uses front-to-back (PSU to port) airflow, ensuring optimal cooling in typical data center hot-aisle/cold-aisle deployments.
Are the fans and power supplies on the QFX5100-24Q-AFI redundant?
The QFX5100-24Q-AFI comes standard with redundant, hot-swap fans and dual power supplies to maximize uptime.
What software platforms does the QFX5100-24Q-AFI support?
It runs Junos OS, offering advanced automation, virtualization, and telemetry features for data center and campus deployments.
Can the QFX5100-24Q-AFI be deployed in a Virtual Chassis configuration?
Yes, you can connect up to ten QFX5100 switches in a Virtual Chassis to simplify management and scale out port density.
What is the typical power consumption of the QFX5100-24Q-AFI?
Power consumption varies by load but typically ranges around 700W with fully populated QSFP ports under nominal conditions.
What environments is the QFX5100-24Q-AFI designed for?
This switch is engineered for data center top-of-rack or spine-and-leaf deployments requiring high throughput and low latency.
Which monitoring features does the QFX5100-24Q-AFI offer?
It provides real-time Telemetry, J-Flow, LLDP, and sFlow support for granular visibility into network performance and health.
How does the QFX5100-24Q-AFI support high availability?
With redundant power supplies, hot-swap fans, Virtual Chassis capabilities, and nonstop software upgrades, it ensures continuous operation.
What form factor is the QFX5100-24Q-AFI?
It is a 1RU rack-mountable switch designed to fit standard 19-inch data center racks.
Does the QFX5100-24Q-AFI support ML-enabled features?
Yes, powered by Junos OS, it supports AI-driven Telemetry and Insights integrations for predictive network analytics.
What warranty and support options are available for the QFX5100-24Q-AFI?
Juniper offers a limited lifetime hardware warranty, with optional Juniper Care support services for accelerated replacement and 24×7 expert assistance.
How do I configure the QFX5100-24Q-AFI initial setup?
Connect via the console port or Juniper’s web interface, follow the setup wizard for basic network parameters, and commit your configuration in Junos OS.
Is the QFX5100-24Q-AFI compatible with third-party optics?
Juniper supports both Juniper-branded and selected third-party QSFP+ transceivers, though certified Juniper optics are recommended for best performance.