QFX5120-48Y-AFI - Juniper Networks

The QFX5120-48Y-AFI is a high-performance, low-latency Ethernet switch from Juniper Networks, designed for data center and campus deployments. It is part of the QFX5120 series, which offers versatile Layer 2 and Layer 3 capabilities with advanced EVPN-VXLAN support.

Key Features

• Port Configuration:

  • 48 x 25GbE (SFP28) / 10GbE (SFP+) / 1GbE (SFP) downlink ports

  • 8 x 100GbE (QSFP28) / 40GbE (QSFP+) uplink ports

  • Supports breakout cables: 100GbE QSFP28 ports can be divided into four 25GbE SFP28 ports, and 40GbE QSFP+ ports can be divided into four 10GbE SFP+ ports, increasing the total number of supported 25GbE and 10GbE ports per switch to 80.

• Performance:

  • Up to 2 Tbps (uni-directional) / 4 Tbps (bi-directional) Layer 2 and Layer 3 throughput

  • Latency as low as 800 nanoseconds

• Hardware:

  • 2.2 GHz quad-core Intel CPU

  • 16 GB memory

  • 50 GB SSD storage

• Airflow:

  • Side intake and port side exhaust airflow (AFI) configuration

• Power Consumption:

  • Maximum power draw: 283 W

  • Typical power draw: 155 W

• Software and Automation:

  • Runs on Junos OS, supporting advanced networking features such as EVPN, BGP Additional Paths, MPLS, Layer 3 VPN, and IPv6 Provider Edge (6PE)

  • Supports intent-based automation, Terraform, Python, Puppet, Ansible, and zero-touch provisioning (ZTP)

• Use Cases:

  • Ideal for data centre fabric leaf/spine and campus distribution/core deployments

  • Supports applications requiring MACsec encryption

  • Compatible with Juniper Apstra software for full lifecycle automation and closed-loop assurance