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High density QSFP+ switching with consistent throughput.
QFX5100-24Q-AA-AFO
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24 QSFP+. AA PLATFORM. FRONT TO BACK AC
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QFX5100-24Q-AA-AFO
- Description:
- 24 QSFP+. AA PLATFORM. FRONT TO BACK AC
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- Brand:
- Juniper
- GTIN:
- 46655505255
- Condition:
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QFX5100-24Q-AA-AFO Overview
QFX5100-24Q-AA-AFO is a high-performance data center switch engineered with a robust, modern architecture that delivers low latency and superior throughput. It features advanced ASIC-based processing, redundant power options, and a dense array of ports, ensuring resilient connectivity for demanding network environments.
Designed to support both Layer 2 and Layer 3 operations, the QFX5100-24Q-AA-AFO offers flexible stacking and scalability to accommodate growing network needs. Its versatile port configurations, including high-density QSFP+ interfaces with breakout capabilities, make it an ideal choice for data center aggregation, high-performance computing, and enterprise campus deployments.
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QFX5100-24Q-AA-AFO 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
- 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
- Power Consumption
- N/A
- Switching Capacity with Stacking
- N/A
- Width
- 17.7 inches
- Uplink Configuration
- 40G
- SFP Ports
- 24 SFP Ports
- Memory
- 4 GB
- Weight
- 20 lbs
- Media Type Supported
- Fiber
- Switching Capacity
- 1440 Gbps
- Depth
- 10.9 inches
- Manufacturer Part Number
- QFX5100-24Q-AA-AFO
- Port/Expansion Slot Details
- 24 QSFP+ ports with breakout support to 4x10GbE
- Product Name
- Juniper QFX5100-24Q-AA-AFO
QFX5100-24Q-AA-AFO Use Case
Hyperscale Data Center Spine-Leaf Architecture
Data center operators building large-scale cloud environments deploy the QFX5100-24Q-AA-AFO-24 QSFP+. AA PLATFORM. FRONT TO BACK AC in a leaf-spine topology to interconnect thousands of servers with low latency. Benefit: 1.44 Tbps system throughput, sub-0.8 μs latency per hop and seamless east-west scaling to support dynamic workloads.
Low-Latency Financial Trading Infrastructure
High-frequency trading firms integrate the QFX5100-24Q-AA-AFO-24 QSFP+. AA PLATFORM. FRONT TO BACK AC in core trading fabrics to deliver deterministic, microsecond-class latency. Benefit: < 400 ns port-to-port latency, accelerated order execution and a measurable competitive edge in algorithmic markets.
Enterprise Campus Aggregation and Core Uplinks
Large enterprises deploy the QFX5100-24Q-AA-AFO-24 QSFP+. AA PLATFORM. FRONT TO BACK AC as campus core switches to aggregate multiple 40 GbE uplinks from branch buildings and connect to the main data center. Benefit: 24×40 GbE port density, front-to-back airflow compatibility with hot-aisle containment, and simplified, zero-downtime network expansion.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| QFX5100-24Q-AA-AFO |  QFX5100-48S-3AFO |  QFX5100-96S-AFO |  QFX5100-48S-D-3AFI |  QFX5100-24Q-3AFI | |
|---|---|---|---|---|---|
| Depth | 10.9 inches | 18 inches | 18.5 inches | 17.5 inches | 18.5 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10GbE | 10/100/1000 | 10/25/40/100GbE |
| 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 | 1.73 inches | 1.75 inches | 1.75 inches |
| IOS | IP Services | IP Services | Junos OS | IP Services | Junos OS |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10GbE | 10/100/1000 | 10/25/40/100GbE |
| 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-AA-AFO | QFX5100-48S-3AFO | QFX5100-96S-AFO | QFX5100-48S-D-3AFI | QFX5100-24Q-3AFI |
| Media Type Supported | Fiber | Fiber | Fiber | Fiber | Fiber / Copper |
| Memory | 4 GB | 512 MB | 4 GB | 4 GB | 4 GB |
| Number of Downlink Ports | 24 Ports | 48 Ports | 96 Ports | 48 Ports | 24 Ports |
| Number of Ethernet Ports | 12–24 Ports | 24–48 Ports | Over 48 Ports | 24–48 Ports | 12–24 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | 24 QSFP+ ports with breakout support to 4x10GbE | N/A | Fixed configuration with 96 SFP+ downlink ports and 6 QSFP+ uplink ports | N/A | 24 QSFP28 fixed ports |
| Power Consumption | N/A | 350 W | 370 W | 330W | N/A |
| Power Source | Redundant Power Supply / AC Power Supply | Redundant Power Supply / AC Power Supply | Redundant Power Supply / AC Power Supply | Redundant Power Supply / AC Power Supply | AC Power Supply |
| Product Name | Juniper QFX5100-24Q-AA-AFO | Juniper QFX5100-48S-3AFO Switch | Juniper Networks QFX5100-96S-AFO | Juniper Networks QFX5100-48S-D-3AFI | Juniper Networks QFX5100-24Q-3AFI |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | Yes | Yes | Yes | Yes | Yes |
| SFP Ports | 24 SFP Ports | 48 SFP Ports | 96 x 10GbE SFP+ ports | 48 SFP Ports | N/A |
| Switching Capacity | 1440 Gbps | 1280 Gbps | 1920 Gbps | 1280 Gbps | 4800 Gbps |
| Switching Capacity with Stacking | N/A | 2560 Gbps | N/A | 2560 Gbps | N/A |
| Uplink Configuration | 40G | 40G | 40G | 10G | 40G/100G |
| Weight | 20 lbs | 14 lbs | 15 lbs | 18 lbs | 25 lbs |
| Width | 17.7 inches | 19 inches | 17.5 inches | 19 inches | 17.5 inches |
Reviews & Ratings
H
Hector Langley
4
Front to back airflow suited our racks.
S
Stanley Moorefield
4
Reliable leaf switch for spine leaf designs.
E
Edgar Nolan
4
Low latency and stable operation.
A
Alban Rowntree
5
Meets data center requirements.
Questions & Answers
What is the port configuration of the Juniper QFX5100-24Q-AA-AFO switch?
The QFX5100-24Q-AA-AFO features 24 QSFP+ ports supporting 40 GbE full-duplex connectivity.
What is the switching capacity of the QFX5100-24Q-AA-AFO?
It delivers 1.92 Tbps of non-blocking line-rate switching capacity for high-performance data centers.
What throughput performance does each port on the QFX5100-24Q-AA-AFO deliver?
Each QSFP+ port provides up to 40 Gbps of full-duplex throughput.
Does the QFX5100-24Q-AA-AFO support Virtual Chassis technology?
Yes, it supports up to 10-member Virtual Chassis configurations via high-speed interconnect cables.
What type of airflow does the QFX5100-24Q-AA-AFO use?
It uses front-to-back AC airflow for efficient thermal management in data center racks.
What power supply options are available for the QFX5100-24Q-AA-AFO?
The switch includes dual hot-swappable AC power supplies with built-in redundancy.
Is the QFX5100-24Q-AA-AFO compatible with Junos OS?
Yes, it runs the full-featured Junos OS, providing advanced automation, telemetry, and programmability.
What latency performance does the QFX5100-24Q-AA-AFO offer?
It delivers sub-950 ns ultra-low latency performance for demanding applications.
Can the QFX5100-24Q-AA-AFO operate in high-density data center environments?
Yes, its 1U form factor and front-to-back airflow design make it ideal for dense rack deployments.
What cable types and maximum lengths are supported on the QSFP+ ports?
QSFP+ ports support passive copper up to 5 m, active cables up to 10 m, and SR4 multimode fiber up to 100 m.
Does the QFX5100-24Q-AA-AFO support VXLAN and EVPN?
Yes, it offers hardware-based VXLAN gateway, EVPN, and advanced multicast capabilities.
How can I monitor system health and performance on the QFX5100-24Q-AA-AFO?
Use Junos Space Network Director, SNMP, sFlow, and in-band CLI/NETCONF telemetry for real-time visibility.
What warranty and support options are available for the QFX5100-24Q-AA-AFO?
It includes a limited lifetime warranty with next-day hardware replacement and optional 24/7 Juniper Care support.
How do I install the QFX5100-24Q-AA-AFO in a standard 19″ rack?
Mount the 1U switch using the supplied rack-mount brackets and secure it to EIA-19″ rails.
What is the typical power consumption of the QFX5100-24Q-AA-AFO?
Typical power draw is 200 W, with a maximum consumption of 360 W under full load.