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Edward Ramsey
4
Front to back airflow aligned well with our data center layout.
QFX5100-24Q-AFO
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QFX5100, 24 QSFP ports, 2 expansion slots, redundant fans, r...
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QFX5100-24Q-AFO
- Description:
- QFX5100, 24 QSFP ports, 2 expansion slots, redundant fans, redundant power supplies Built in Port to PSU air flow
- Rating:
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- Brand:
- Juniper
- GTIN:
- 662197637942
- Condition:
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QFX5100-24Q-AFO Overview
QFX5100-24Q-AFO is a high-performance, low-latency switch built on a non-blocking architecture that supports both Layer 2 and Layer 3 operations. It offers a robust design with 24 x 40GbE QSFP+ ports, engineered for environments that demand high throughput, low latency, and reliable connectivity for data centers and enterprise networks.
QFX5100-24Q-AFO features versatile power options via an AC Power Supply and is designed in a compact 1 RU rack-mount form factor that enables easy stacking and scalability. Its advanced switching capacity of 1440 Gbps along with dedicated flash and memory resources make it ideally suited for demanding use cases, including high-density data center deployments and cloud-based networking applications.
QFX5100-24Q-AFO price is is available on request. Get immediate quote.
Request bulk order quote for QFX5100-24Q-AFO for additional pricing. Browse the full Juniper Qfx5100 Series Switches series or explore all Juniper products.
QFX5100-24Q-AFO Specifications
- Product Type
- Switch
- Power Source
- AC Power Supply
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Power Consumption
- 200 W
- Number of Ethernet Ports
- 12–24 Ports
- Number of Downlink Ports
- 24 Ports
- Manageable
- Managed
- Ethernet Technology
- 40G
- Media Type Supported
- Fiber
- Redundant Power Supply Supported
- No
- Manufacturer Part Number
- QFX5100-24Q-AFO
- Uplink Configuration
- 40G
- IOS
- Junos OS
- POE Support
- Non POE
- SFP Ports
- N/A
- Memory
- 256 MB
- Rack Units
- 1 RU
- Interface Ports
- N/A
- Port/Expansion Slot Details
- 24 x 40GbE QSFP+ Ports
- Flash Memory
- 256 MB
- Switching Capacity
- 1440 Gbps
- Switching Capacity with Stacking
- N/A
- Product Name
- Juniper QFX5100-24Q-AFO
- Height
- 1.75 inches
- Width
- 17.5 inches
- Depth
- 18.5 inches
- Weight
- 12 lbs
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| QFX5100-24Q-AFO |  QFX5100-48S-D-3AFO |  QFX5100-96S-DC-AFI |  QFX5100-48S-DC-AFO |  QFX5100-96S-AFI | |
|---|---|---|---|---|---|
| Depth | 18.5 inches | 18 inches | 18 inches | 18 inches | 18 inches |
| Ethernet Technology | 40G | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10G |
| Flash Memory | 256 MB | 64 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 | 1.75 inches |
| IOS | Junos OS | IP Services | IP Services | IP Services | N/A |
| Interface Ports | N/A | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10G |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / 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-AFO | QFX5100-48S-D-3AFO | QFX5100-96S-DC-AFI | QFX5100-48S-DC-AFO | QFX5100-96S-AFI |
| Media Type Supported | Fiber | Fiber | Fiber | Fiber | Fiber |
| Memory | 256 MB | 256 MB | 512 MB | 4 GB | 4 GB |
| Number of Downlink Ports | 24 Ports | 48 Ports | N/A | 48 Ports | N/A |
| Number of Ethernet Ports | 12–24 Ports | 24–48 Ports | Over 48 Ports | 24–48 Ports | Over 48 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | 24 x 40GbE QSFP+ Ports | 48 x 1/10GbE SFP ports, 4 x 40GbE QSFP+ uplink ports | N/A | N/A | N/A |
| Power Consumption | 200 W | 265 W | 450 W | N/A | N/A |
| Power Source | AC Power Supply | Redundant Power Supply / AC Power Supply | Redundant Power Supply | AC Power Supply | Redundant Power Supply / AC Power Supply |
| Product Name | Juniper QFX5100-24Q-AFO | Juniper QFX5100-48S-D-3AFO | Juniper QFX5100-96S-DC-AFI | Juniper QFX5100-48S-DC-AFO | Juniper QFX5100-96S-AFI |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | Yes | Yes | No | Yes |
| SFP Ports | N/A | 48 SFP Ports | 96 SFP Ports | 48 SFP Ports | 96 SFP Ports |
| Switching Capacity | 1440 Gbps | 1280 Gbps | 1440 Gbps | 1280 Gbps | 2560 Gbps |
| Switching Capacity with Stacking | N/A | N/A | 1440 Gbps | 1280 Gbps | N/A |
| Uplink Configuration | 40G | 10G | 10G | 10G | 10G |
| Weight | 12 lbs | 20 lbs | 25 lbs | 15 lbs | 30 lbs |
| Width | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches |
Reviews & Ratings
L
Leonard Price
4
QSFP ports deliver predictable high speed performance.
V
Victor Langdon
5
Stable switch with excellent reliability.
S
Stephen Marsh
5
Easy to integrate into existing fabric.
C
Clive Peterson
5
Consistent performance since installation.
Questions & Answers
What is the port density of the QFX5100-24Q-AFO?
The QFX5100-24Q-AFO offers 24 native QSFP+ ports, each supporting 40 GbE connectivity for high-density data center deployments.
What expansion capabilities does the QFX5100-24Q-AFO provide?
It features two hot-swappable expansion slots that accept Quad SFP+ or CFP2 modules, enabling additional 40 GbE or 100 GbE interfaces.
How does redundant airflow operate in the QFX5100-24Q-AFO?
The switch uses port-to-PSU front-to-rear airflow with redundant, hot-swappable fan trays to maintain optimal cooling and uninterrupted operation.
What power supply options are supported by the QFX5100-24Q-AFO?
It supports dual, load-sharing AC or DC power supplies (820 W each) in a redundant configuration to ensure continuous uptime.
What is the forwarding capacity of the QFX5100-24Q-AFO?
The QFX5100-24Q-AFO delivers up to 3.2 Tbps of switching capacity and 1.44 Bpps packet forwarding performance.
Does the QFX5100-24Q-AFO run Junos OS?
Yes, the QFX5100-24Q-AFO runs Juniper’s Junos OS, providing a consistent, fully featured network operating system.
Can I deploy MLAG with the QFX5100-24Q-AFO?
Yes, it supports Multi-Chassis Link Aggregation (MLAG) for active-active uplink resilience and simplified traffic engineering.
What management interfaces are available on the QFX5100-24Q-AFO?
Management options include a dedicated out-of-band Ethernet port, console port, Junos CLI, SNMP, and Junos Space automation tools.
What high-availability features are built into the QFX5100-24Q-AFO?
It offers redundant fans, redundant power supplies, and Virtual Chassis support for device-level high availability and non-stop forwarding.
What cooling and environmental specifications apply to the QFX5100-24Q-AFO?
Operating temperature ranges from 0 °C to 45 °C with front-to-rear airflow; acoustic noise is optimized for data center racks.
What is the typical power consumption of the QFX5100-24Q-AFO?
Typical operating power is approximately 600 W under full load, with efficiency optimizations for reduced energy costs.
What latency performance does the QFX5100-24Q-AFO deliver?
It provides low-latency switching at sub-700 ns for 40 GbE flows, ideal for high-performance computing and trading environments.
Is the QFX5100-24Q-AFO compatible with third-party transceivers?
Yes, it interoperates with both Juniper and industry-standard 40 GbE QSFP+ and 100 GbE CFP2 optical modules.
What use cases are ideal for the QFX5100-24Q-AFO?
It is ideal for leaf-spine data center fabrics, high-performance computing clusters, and cloud aggregation layers requiring high density and low latency.
What software-defined networking features does the QFX5100-24Q-AFO support?
It supports EVPN-VXLAN, segment routing, automation with Ansible and OpenStack integration for modern SDN deployments.
What warranty and support options are offered for the QFX5100-24Q-AFO?
Juniper provides a limited lifetime warranty on hardware, plus configurable support tiers including 24×7 coverage and on-site options.