Juniper QFX5100-48S-AFO – 48-Port 10GbE Data Center Switch

Equipment Overview

The Juniper QFX5100-48S-AFO is a managed switch from the QFX5100 series, designed for access and aggregation roles in enterprise data centers. It provides high-density 10GbE connectivity with 48 SFP/SFP+ ports and six QSFP+ 40GbE uplink ports, delivering a switching capacity of 1.44 Tbps. Operating on Junos OS, this 1U device is suited for leaf deployments in leaf-spine topologies, server aggregation, and storage or compute cluster connectivity. The AC power supply and AFO airflow (back-to-front) optimize installation in cold-aisle containment environments.

Main Parameters

• Ports: 48 x SFP/SFP+ 10GbE, 6 x QSFP+ 40GbE
• Switching capacity: 1.44 Tbps (1.08 Bpps)
• Breakout support: 40G to 4 x 10GbE
• Form factor: 1U rack-mountable
• Power supply: AC, AFO airflow (back-to-front)
• Operating system: Junos OS

Key Advantages

This model is selected for enterprise projects requiring high-density 10GbE server access with scalable 40GbE uplinks. The breakout capability increases 10GbE port density without additional hardware, while the AFO airflow aligns with standard cold-aisle data center designs. Junos OS provides consistent management and automation features across the network.

Compatibility & Integration

The switch supports standard SFP+ and QSFP+ optical modules and breakout cables, ensuring interoperability with common transceivers. It integrates into leaf-spine architectures as a leaf node, connecting to spine switches via 40GbE QSFP+ ports. Junos OS enables compatibility with Juniper networking ecosystems and standard Ethernet protocols.