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Name:
QFX5100-48S-3AFO
- Description:
- QFX5100, 48 SFP+/SFP ports, 6 QSFP+ ports, redundant fans, 2 AC power supplies, front to back airflow
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- Juniper
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- GTIN:
- 832938069961
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3 Year Extended Warranty
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Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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QFX5100-48S-3AFO Overview
QFX5100-48S-3AFO is a high-performance data center switch built on a robust, ASIC-based architecture that ensures reliable, non-blocking throughput and low latency for modern networking environments. Designed with scalability in mind, it offers flexible power options including redundant power supplies, a rack-mount form factor, and a range of high-speed ports to support mission-critical, high-density applications.
This switch features 48 SFP+ ports alongside dedicated uplink configurations that deliver 40G connectivity for efficient network aggregation. With stacking capabilities that extend its switching capacity and support for Layer 2 and Layer 3 operations, QFX5100-48S-3AFO is ideal for deployments in data centers, cloud infrastructures, enterprise campus networks, and virtualization environments.
What is the price of QFX5100-48S-3AFO?
Pricing for QFX5100-48S-3AFO is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for QFX5100-48S-3AFO.
Explore more options from Switches or explore other Juniper products.
QFX5100-48S-3AFO Specifications
| Product Type | Switch |
| Power Source | Redundant Power Supply / AC Power Supply |
| Layer Supported | Layer 2 / Layer 3 |
| Form Factor | Rack-mount |
| Power Consumption | 350 W |
| Number Of Ethernet Ports | 24–48 Ports |
| Number Of Downlink Ports | 48 Ports |
| Manageable | Managed |
| Ethernet Technology | 10/100/1000 |
| Media Type Supported | Fiber |
| Redundant Power Supply Supported | Yes |
| Manufacturer Part Number | QFX5100-48S-3AFO |
| Uplink Configuration | 40G |
| IOS | IP Services |
| POE Support | Non POE |
| SFP Ports | 48 SFP Ports |
| Memory | 512 MB |
| Rack Units | 1 RU |
| Interface Ports | 10/100/1000 |
| Port/Expansion Slot Details | N/A |
| Flash Memory | 256 MB |
| Switching Capacity | 1280 Gbps |
| Switching Capacity With Stacking | 2560 Gbps |
| Product Name | Juniper QFX5100-48S-3AFO Switch |
| Height | 1.75 inches |
| Width | 19 inches |
| Depth | 18 inches |
| Weight | 14 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|---|
| Depth | 10.7 inches | 18 inches | 18 inches | 17.5 inches | 18.5 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10GbE |
| 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 | 1.72 inches | 1.7 inches | 1.75 inches | 1.75 inches | 1.73 inches |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10GbE |
| IOS | IP Services | IP Services | IP Services | IP Services | Junos OS |
| 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 | QFX5100-48S-DC-AFI | QFX5100-48S-3AFI | QFX5100-48S-3AFO | QFX5100-48T-AFO | QFX5100-96S-AFO |
| Media Type Supported | Fiber | Fiber | Fiber | Twisted Pair | Fiber |
| Memory | 512 MB | 4 GB | 512 MB | 4 GB | 4 GB |
| Number of Downlink Ports | 48 Ports | 48 Ports | 48 Ports | N/A | 96 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | Over 48 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | N/A | N/A | N/A | 48x 10/100/1000BASE-T ports; 2x 10GbE SFP+ uplink ports | Fixed configuration with 96 SFP+ downlink ports and 6 QSFP+ uplink ports |
| Power Consumption | 300W | 250 W | 350 W | N/A | 370 W |
| Power Source | DC Power Supply | Redundant Power Supply / AC Power Supply | Redundant Power Supply / AC Power Supply | AC Power Supply | Redundant Power Supply / AC Power Supply |
| Product Name | Juniper Networks QFX5100-48S-DC-AFI Datacenter Switch | Juniper QFX5100-48S-3AFI | Juniper QFX5100-48S-3AFO Switch | Juniper QFX5100-48T-AFO | Juniper Networks QFX5100-96S-AFO |
| 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 | 48 SFP Ports | 48 SFP Ports | 48 SFP Ports | 2 SFP+ Ports | 96 x 10GbE SFP+ ports |
| Switching Capacity | 1280 Gbps | 1280 Gbps | 1280 Gbps | 720 Gbps | 1920 Gbps |
| Switching Capacity with Stacking | N/A | 1280 Gbps | 2560 Gbps | 1.44 Tbps | N/A |
| Uplink Configuration | 40G | 40G | 40G | 10G | 40G |
| Weight | 21 lbs | 15 lbs | 14 lbs | 12 lbs | 15 lbs |
| Width | 17.17 inches | 17.5 inches | 19 inches | 17.5 inches | 17.5 inches |
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Questions & Answers
Q
What is the Juniper QFX5100-48S-3AFO switch?
A
The QFX5100-48S-3AFO is a high-performance data center switch featuring 48 SFP+/SFP ports, 6 QSFP+ ports, front-to-back airflow, redundant fans, and dual AC power supplies.
Q
How many SFP+ and QSFP+ ports does the QFX5100-48S-3AFO offer?
A
It offers 48 SFP+/SFP ports for 1/10GbE connectivity and 6 QSFP+ ports for 40GbE uplinks, supporting flexible breakout configurations.
Q
What airflow configuration does the QFX5100-48S-3AFO use?
A
It employs front-to-back airflow optimized for hot-aisle/cold-aisle containment in modern data center deployments.
Q
Does the QFX5100-48S-3AFO include redundant fans?
A
Yes, it features hot-swappable, redundant fans to ensure continuous cooling and high availability.
Q
Are there redundant power supplies in the QFX5100-48S-3AFO?
A
Yes, it ships with two hot-swappable AC power supplies configured for N+1 redundancy.
Q
Which operating system powers the QFX5100-48S-3AFO?
A
The switch runs Juniper’s Junos OS, delivering advanced L2/L3 features, security, and automation.
Q
What is the total switching capacity of the QFX5100-48S-3AFO?
A
The QFX5100-48S-3AFO provides up to 1.44 Tbps of switching capacity and 1.44 Bpps line-rate forwarding performance.
Q
What latency performance does the QFX5100-48S-3AFO deliver?
A
It delivers microsecond-class latency (<3 µs) at full load for all packet sizes.
Q
Does the QFX5100-48S-3AFO support virtualization and EVPN-VXLAN?
A
Yes, it supports EVPN-VXLAN, VRF, and logical systems for multi-tenant network virtualization.
Q
What network automation features does the QFX5100-48S-3AFO support?
A
It supports Junos Automation Scripts, Junos PyEZ, Ansible, Puppet, SaltStack, and Junos Telemetry Interface for CI/CD workflows.
Q
What management and telemetry options are available?
A
It provides an out-of-band management port, USB console, SNMP, REST APIs, and streaming telemetry via JTI.
Q
What are the typical use cases for the QFX5100-48S-3AFO?
A
Ideal for leaf-spine architectures, server access, high-density aggregation, and cloud data center deployments.
Q
How energy efficient is the QFX5100-48S-3AFO?
A
It consumes around 400 W under full load and supports IEEE 802.3az Energy Efficient Ethernet to lower OPEX.
Q
What warranty and support options are available for the QFX5100-48S-3AFO?
A
Juniper offers a limited lifetime hardware warranty and optional Juniper Care service for 24×7 technical support and advance replacement.
Q
How can I integrate the QFX5100-48S-3AFO into my data center network?
A
It seamlessly integrates into EVPN-VXLAN and MLAG topologies over Junos OS, enabling scalable, resilient leaf-spine designs.
Q
Where can I purchase the QFX5100-48S-3AFO?
A
The QFX5100-48S-3AFO is available through authorized Juniper distributors, resellers, and Juniper’s online store.
