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Juniper

Juniper QFX5120-48Y-AFI2 | QFX5120 48-Port 25G Switch, Port-to-Chassis Airflow, Redundant AC

Juniper QFX5120-48Y-AFI2 | QFX5120 48-Port 25G Switch, Port-to-Chassis Airflow, Redundant AC

QFX5120-48Y-AFI2

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Description

The Juniper QFX5120 48-Port 25G Data Centre Switch delivers high-density, low-latency switching for modern spine-and-leaf data centre architectures. Configured with 48x 25GbE SFP28 ports and high-speed 100GbE uplinks, this AFI2 variant ships with port-to-chassis (airflow-in) cooling and redundant AC power supplies and fans — ideal for hot-aisle/cold-aisle deployments where reliable, resilient airflow management is critical. The unit includes base software features out of the box.

Built on Juniper's proven QFX5120 platform, this switch supports advanced L2/L3 capabilities including EVPN-VXLAN, ECMP, and MACsec, making it a strong fit for enterprise data centres and cloud operators demanding carrier-grade reliability. Buy today from iptrading.com.au — fast shipping and expert service across Australia.

Features

- 48x wire-rate 25GbE SFP28 ports for high-density server and storage connectivity
- Port-to-chassis (airflow-in) cooling optimised for hot-aisle/cold-aisle data centre racks
- Redundant hot-swappable AC power supplies and fan modules for maximum uptime
- Junos OS — consistent, proven network operating system across the Juniper portfolio
- Supports EVPN-VXLAN for scalable data centre overlay fabric deployments
- ECMP load balancing for efficient traffic distribution across spine links
- MACsec (IEEE 802.1AE) hardware encryption on 25GbE ports
- Advanced L2/L3 routing including BGP, OSPF, IS-IS support
- Zero-touch provisioning (ZTP) for streamlined, automated deployment
- Compatible with Juniper Apstra for intent-based data centre networking

Warranty

Juniper products are supplied with standard manufacturer warranty terms, which vary by product and can range from 1 year through to limited lifetime coverage. IP Trading can also provide Juniper J-Care warranty and support extensions for customers who need longer coverage or enhanced support options. https://support.juniper.net/support/warranty/

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- 48x 25GbE SFP28 downlink ports
- High-speed 100GbE uplink ports (typically 8x QSFP28)
- Airflow direction: Port-to-chassis (AFI — Airflow In)
- Redundant hot-swappable AC power supplies included
- Redundant hot-swappable fan modules included
- Ships with Juniper base software (Junos OS)
- Form factor: 1U rack-mount
- Designed for spine-and-leaf data centre topology

FAQs

Q: What does 'AFI2' mean in the SKU QFX5120-48Y-AFI2?
A: AFI stands for Airflow In, meaning air flows from the port side toward the chassis/PSU side (front-to-back). The '2' denotes the redundant AC power supply configuration. This airflow direction is suited to hot-aisle/cold-aisle data centre rack deployments.

Q: What software does the QFX5120-48Y-AFI2 ship with?
A: The unit ships with Juniper's base software features running Junos OS. Advanced feature sets such as enhanced L3 or data centre licences may require separate licensing depending on your deployment requirements.

Q: Is the QFX5120-48Y-AFI2 suitable for EVPN-VXLAN data centre fabrics?
A: Yes. The QFX5120 platform natively supports EVPN-VXLAN, making it well-suited for modern overlay network fabrics in enterprise and cloud data centres. It can function as both a leaf and spine device in a Clos architecture.

Q: Does this switch support MACsec encryption?
A: Yes, the QFX5120 series supports MACsec (IEEE 802.1AE) on its 25GbE ports, enabling hardware-accelerated Layer 2 encryption for securing inter-switch links in sensitive environments.

Q: Can I purchase the QFX5120-48Y-AFI2 in Australia?
A: Yes. iptrading.com.au stocks Juniper QFX5120 series switches and ships to businesses across Australia with fast dispatch and expert pre-sales support. Contact us for volume pricing or project-specific requirements.

Q: What is the difference between AFO (Airflow Out) and AFI (Airflow In) variants of the QFX5120-48Y?
A: AFO (Airflow Out) units draw air from the PSU/fan side and exhaust through the port side — suited to traditional rack setups. AFI (Airflow In) units do the opposite, exhausting through the PSU/fan side. Choosing the correct airflow direction is critical for maintaining proper thermal management in your rack environment.

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