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QSFP+ density works well for high speed fabrics.
QFX5100-24Q-AA-AFI
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24 QSFP+. AA PLATFORM. BACK TO FRONT AC
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QFX5100-24Q-AA-AFI
- Description:
- 24 QSFP+. AA PLATFORM. BACK TO FRONT AC
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- Brand:
- Juniper
- GTIN:
- 832938068056
- Condition:
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QFX5100-24Q-AA-AFI Overview
QFX5100-24Q-AA-AFI is a high-performance data center switch engineered with a robust, non-blocking architecture that delivers low latency and scalable throughput. Built with advanced silicon and a flexible forwarding plane, it supports both Layer 2 and Layer 3 operations while offering multiple power options via a redundant, front-mounted AC power supply to ensure high availability in mission-critical environments.
Designed for modern network deployments, QFX5100-24Q-AA-AFI features 24 high-density QSFP ports complemented by additional SFP ports for flexible connectivity. Its stackable, rack-mount form factor combines high switching capacity with efficient power consumption to support diverse use cases—ranging from data center east-west traffic management to enterprise campus interconnects—ensuring superior performance in rapidly evolving network infrastructures.
QFX5100-24Q-AA-AFI price is is available on request. Get immediate quote.
Request bulk order quote for QFX5100-24Q-AA-AFI for additional pricing. Browse the full Juniper Qfx5100 Series Switches series or explore all Juniper products.
QFX5100-24Q-AA-AFI Specifications
- Product Type
- Switch
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Number of Downlink Ports
- 24 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- POE Support
- Non POE
- SFP Ports
- 4 SFP Ports
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Power Source
- Redundant Power Supply / AC Power Supply
- Redundant Power Supply Supported
- Yes
- Flash Memory
- 256 MB
- Number of Ethernet Ports
- 12–24 Ports
- IOS
- IP Services
- Height
- 1.75 inches
- Switching Capacity with Stacking
- N/A
- Uplink Configuration
- 40G
- Memory
- 4 GB
- Switching Capacity
- 1280 Gbps
- Media Type Supported
- Fiber
- Width
- 19 inches
- Weight
- 15 lbs
- Depth
- 17 inches
- Power Consumption
- 250 W
- Manufacturer Part Number
- QFX5100-24Q-AA-AFI
- Port/Expansion Slot Details
- 24 x 40GbE QSFP ports, 4 x 10GbE SFP+ ports
- Product Name
- Juniper QFX5100-24Q-AA-AFI Switch
QFX5100-24Q-AA-AFI Use Case
Spine-and-Leaf High-Density Data Center Fabric
In a hyperscale cloud environment, network architects deploy the QFX5100-24Q-AA-AFI-24 QSFP+ (AA Platform, back-to-front AC) as spine and leaf switches to interconnect thousands of virtualized servers at 40 GbE. By leveraging 24 QSFP+ ports per switch with breakout cables, they achieve seamless scalability, sub-microsecond latency, and non-blocking throughput. The outcome: predictable east-west traffic performance, simplified fabric automation, and 3× higher rack density versus legacy 10 GbE architectures.
Ultra-Low-Latency Financial Trading Network
A leading exchange integrates the QFX5100-24Q-AA-AFI-24 QSFP+ (AA Platform, back-to-front AC) at its matching engine data centers to support co-location clients demanding deterministic performance. With hardware-based cut-through switching and optimized ASIC pipelines, it consistently delivers nanosecond-class latency and zero packet loss even under peak trading volumes. The benefit: accelerated order execution, improved market competitiveness, and full compliance with stringent financial regulations.
Enterprise Campus Video Collaboration Backbone
A multinational enterprise implements the QFX5100-24Q-AA-AFI-24 QSFP+ (AA Platform, back-to-front AC) as its core aggregator to support 4K/8K video conferencing, large-file transfers, and remote-office connectivity. The 24 QSFP+ ports enable 40 GbE uplinks to each building’s access switches, while integrated Virtual Chassis technology simplifies operations. The outcome: uninterrupted high-bandwidth collaboration, centralized policy enforcement, and 30% lower OPEX through unified management.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| QFX5100-24Q-AA-AFI |  QFX5100-24Q-3AFO |  QFX5100-24Q-AFO |  QFX5100-24Q-D-3AFI |  QFX5100-48S-3AFO | |
|---|---|---|---|---|---|
| Depth | 17 inches | 17 inches | 18.5 inches | 16.5 inches | 18 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 40G | 10/100/1000 | 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 | 1.73 inches | 1.75 inches | 1.75 inches | 1.75 inches |
| IOS | IP Services | IP Lite | Junos OS | IP Services | IP Services |
| Interface Ports | 10/100/1000 | 10/100/1000 | N/A | 10/100/1000 | 10/100/1000 |
| Layer Supported | Layer 2 / Layer 3 | Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | QFX5100-24Q-AA-AFI | QFX5100-24Q-3AFO | QFX5100-24Q-AFO | QFX5100-24Q-D-3AFI | QFX5100-48S-3AFO |
| Media Type Supported | Fiber | Fiber | Fiber | Fiber | Fiber |
| Memory | 4 GB | 4 GB | 256 MB | 4 GB | 512 MB |
| Number of Downlink Ports | 24 Ports | 24 Ports | 24 Ports | 24 Ports | 48 Ports |
| Number of Ethernet Ports | 12–24 Ports | 12–24 Ports | 12–24 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | 24 x 40GbE QSFP ports, 4 x 10GbE SFP+ ports | 24 QSFP+ ports | 24 x 40GbE QSFP+ Ports | 24 QSFP+ ports for data center connectivity and 4 SFP ports for management | N/A |
| Power Consumption | 250 W | 370W | 200 W | N/A | 350 W |
| Power Source | Redundant Power Supply / AC Power Supply | AC Power Supply | AC Power Supply | Redundant Power Supply | Redundant Power Supply / AC Power Supply |
| Product Name | Juniper QFX5100-24Q-AA-AFI Switch | Juniper QFX5100-24Q-3AFO | Juniper QFX5100-24Q-AFO | Juniper QFX5100-24Q-D-3AFI Data Center Switch | Juniper QFX5100-48S-3AFO Switch |
| 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 | No | Yes | Yes |
| SFP Ports | 4 SFP Ports | N/A | N/A | 4 SFP Ports | 48 SFP Ports |
| Switching Capacity | 1280 Gbps | 1440 Gbps | 1440 Gbps | 1920 Gbps | 1280 Gbps |
| Switching Capacity with Stacking | N/A | N/A | N/A | 3840 Gbps | 2560 Gbps |
| Uplink Configuration | 40G | 40G | 40G | 40G | 40G |
| Weight | 15 lbs | 8 lbs | 12 lbs | 15 lbs | 14 lbs |
| Width | 19 inches | 17.5 inches | 17.5 inches | 17.5 inches | 19 inches |
Reviews & Ratings
R
Reginald Moore
4
Airflow-in design matched our environment.
C
Calvin Rhodes
4
Consistent low latency switching.
W
Winston Dale
5
Reliable spine or leaf option.
H
Harlan Beckett
5
Very satisfied with performance.
Questions & Answers
What is the QFX5100-24Q-AA-AFI?
The QFX5100-24Q-AA-AFI is a Juniper Networks 24-port QSFP+ switch in the AA platform with front-to-back AC power and AFI airflow, designed for high-performance data center deployments.
How many QSFP+ ports does the QFX5100-24Q-AA-AFI support?
The QFX5100-24Q-AA-AFI supports 24 QSFP+ ports, each capable of 40 GbE, for a total switching capacity of up to 1.92 Tbps.
What port types and speeds are available on the QFX5100-24Q-AA-AFI?
All 24 ports are QSFP+ slots supporting 40 GbE natively and can be broken out to 4×10 GbE using compatible QSFP+ DAC or fiber breakout cables.
What is the total switching and forwarding capacity of the QFX5100-24Q-AA-AFI?
The QFX5100-24Q-AA-AFI delivers 1.92 Tbps of switching capacity and up to 1.44 billion packets per second (bpps) of forwarding capacity.
Which airflow configuration does the QFX5100-24Q-AA-AFI use?
The QFX5100-24Q-AA-AFI employs back-to-front AFI airflow, optimized for hot-aisle/cold-aisle data center deployments.
What type of power supply does the QFX5100-24Q-AA-AFI include?
This model includes an integrated front-to-back AC power supply rated at 100–240 VAC, 50/60 Hz, delivering up to 400 W total power.
Does the QFX5100-24Q-AA-AFI support redundant power supplies?
Yes, the QFX5100-24Q-AA-AFI can be equipped with optional redundant AC or DC power supplies to ensure continuous operation.
Which operating system runs on the QFX5100-24Q-AA-AFI?
The QFX5100-24Q-AA-AFI runs Juniper’s Junos OS, offering industry-leading stability, automation, and programmability features.
What features are included in the AA platform for the QFX5100-24Q-AA-AFI?
The AA platform provides advanced Layer 2/3 switching, EVPN-VXLAN overlay, ML-based analytics, and programmable APIs for SDN integration.
What are common use cases for the QFX5100-24Q-AA-AFI in data centers?
Typical use cases include high-density spine/leaf switching, server aggregation, HPC clusters, and 40 GbE fabric expansion.
How is the QFX5100-24Q-AA-AFI configured initially?
Initial configuration is performed via the Junos CLI or Web UI, with zero-touch provisioning options available through DHCP and automation tools.
What warranty coverage does the QFX5100-24Q-AA-AFI include?
Juniper provides a limited lifetime hardware warranty and 90 days of software support, with optional premium support contracts available.
How does the QFX5100-24Q-AA-AFI support network virtualization?
It supports EVPN, VXLAN, Virtual Chassis Fabric, and VLAN-based segmentation to enable scalable multi-tenant virtualization.
Can multiple QFX5100-24Q-AA-AFI switches be stacked?
Yes, you can stack up to 10 QFX5100 switches using Virtual Chassis technology for unified management and single-image operation.
What are the physical dimensions and weight of the QFX5100-24Q-AA-AFI?
The unit measures 1.75″×17.25″×19.0″ (H×W×D) and weighs approximately 17 lbs (7.7 kg) without power supplies.
How do I order spare parts or accessories for the QFX5100-24Q-AA-AFI?
Spare parts and accessories can be ordered through authorized Juniper resellers or via the Juniper e-Store using the product SKU QFX5100-24Q-AA-AFI.