Juniper Networks QFX5120-48Y-AFI 48 x 1/10/25 Gigabit SFP28 + 8 x 40/100GbE Switch

Name: Juniper Networks QFX5120-48Y-AFI 48 x 1/10/25 Gigabit SFP28 + 8 x 40/100GbE Switch
Brand: Juniper
SKU: QFX5120-48Y-AFI
Price: 9236.50 USD
Availability: InStock
Rating: 5 (8 reviews)

Mfr. Part #: QFX5120-48Y-AFI

Brand: Juniper

Condition: Refurbished

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overview

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overview

QFX5120-48Y-AFI Overview

Juniper Networks QFX5120-48Y-AFI 48 X 1/10/25 Gigabit Sfp28 + 8 X 40/100gbe Switch

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faqs

Frequently Asked Questions

What are the primary port configurations for the Juniper QFX5120-48Y-AFI? +

The QFX5120-48Y-AFI features 48 high-speed 25GbE SFP28 ports for server connectivity and 8 100GbE QSFP28 uplink ports. This density is specifically designed for high-performance data center environments, enabling seamless migration from 10G or 25G infrastructures to high-bandwidth 100G core or spine architectures.

Does the QFX5120-48Y-AFI support different airflow directions? +

Yes, the 'AFI' suffix in the model number designates this unit as having front-to-back airflow. This configuration is essential for modern hot-aisle/cold-aisle data center deployments, ensuring that cool air is pulled from the cold aisle through the front intake and exhausted out the rear into the hot aisle.

What is the primary use case for the QFX5120-48Y-AFI in a leaf-spine architecture? +

This switch serves as a high-density leaf node in a Juniper IP fabric. Its low-latency switching and support for deep buffers make it ideal for demanding cloud, virtualization, and storage applications where consistent performance and non-blocking line-rate throughput are critical for maintaining overall network fabric efficiency.

How does the QFX5120-48Y-AFI handle network management and automation? +

This platform runs the Junos OS, offering powerful programmability through REST APIs, Python scripting, and NETCONF. It is fully compatible with modern automation frameworks like Ansible and Puppet, allowing network administrators to manage complex, large-scale deployments through software-defined infrastructure models rather than manual CLI configurations.

Can the 100GbE QSFP28 ports be used as downlinks? +

While the 100GbE ports are primarily designed as high-speed uplinks to connect to the spine layer, they can be configured for diverse connectivity needs. Depending on your specific network topology, these ports offer the flexibility to handle high-bandwidth server connections or inter-switch links, provided the required optics or direct-attach cables are utilized.

What layer 2 and layer 3 features does this Juniper switch support? +

The QFX5120-48Y-AFI provides a comprehensive suite of advanced switching and routing capabilities. It supports full L2 features, including VLANs and Spanning Tree protocols, alongside robust L3 routing protocols like BGP, OSPF, and IS-IS, enabling it to function effectively at both the access and aggregation layers of the enterprise network.

Is the QFX5120-48Y-AFI compatible with EVPN-VXLAN environments? +

Absolutely. This switch is purpose-built for modern data center overlay networks. It provides hardware-based support for EVPN-VXLAN, allowing for scalable multi-tenant architectures and simplified layer 2 extension across layer 3 physical networks, which is essential for modern private and hybrid cloud connectivity requirements.

What are the power requirements for the QFX5120-48Y-AFI? +

This unit utilizes high-efficiency, hot-swappable power supplies designed for data center redundancy. The exact power draw depends on your specific configuration, optics, and cabling load. We recommend verifying your rack's power distribution unit capabilities to ensure sufficient capacity for the dual-redundant power setup typical of these enterprise-grade deployments.

How can I obtain a bulk quote for multiple QFX5120-48Y-AFI units? +

At BuyRouterSwitch.com, we specialize in supporting large-scale infrastructure projects. If you are planning a deployment requiring multiple switches, please reach out to our dedicated sales team directly through our website. We provide competitive bulk pricing and can assist with coordinating large-volume orders to meet your specific project timelines and budgetary requirements.

Why should I choose BuyRouterSwitch.com for my Juniper hardware procurement? +

We are a trusted supplier for enterprise networking hardware, focusing on delivering authentic Juniper gear and a streamlined procurement experience. By choosing BuyRouterSwitch.com, you benefit from our commitment to quality, industry-leading sales support, and a secure ordering process tailored for IT procurement professionals looking for reliable supply chain partners.

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