Juniper QFX5120-32C – 32xQSFP28 Managed Switch

Guide price: Price range: £6,789.77 through £10,084.00 Ex. VAT

Product Overview

The Juniper QFX5120-32C is a high-performance, compact Ethernet switch engineered for 100 GbE data centre spine/leaf and campus distribution deployments. It delivers wire-speed Layer 2/Layer 3 switching and routing with very low latency, powered by Junos OS for advanced fabric automation and overlay/underlay network support.

Featuring a dense 32-port QSFP28 configuration, it scales to meet the demands of modern data centre fabrics and high-capacity interconnects while enabling flexible breakout options for mixed network speeds.

Ideal deployment / environment:
The QFX5120-32C is optimised as a high-capacity spine or leaf switch in large-scale data centre fabrics and campus core networks requiring dense 100 GbE connectivity. Its 32 QSFP28 ports enable robust inter-rack and spine-to-leaf interconnects, while breakout flexibility supports a mix of 25 GbE and 10 GbE server-facing links without additional hardware. The combination of high throughput, low latency and native Junos OS capabilities makes it ideal for EVPN-VXLAN overlay fabrics, adaptive routing, and scalable top-of-rack or aggregation roles in agile enterprise and cloud environments.

Key Features

  • 32 x QSFP28 ports supporting 100 GbE or 40 GbE operation
  • Layer 2/Layer 3 performance: up to 6.4 Tbps bidirectional switching capacity
  • Forwarding performance: up to 2.0 Bpps packet forwarding
  • Low latency: sub-microsecond forwarding
  • Breakout support: 100 GbE ports can channel to 25 GbE or 10 GbE via breakout cables for flexible server access
  • CPU and storage: 2.2 GHz quad-core Intel CPU with 16 GB memory and 64 GB SSD for control-plane and telemetry functions
  • Form factor: 1 RU rack-mount, redundant power supply support with AFI or AFO airflow
  • Junos OS features: full EVPN-VXLAN support, rich routing protocols, multicast, QoS and automation tools

Specification

Additional information

Compatible accessories and licenses for QFX5120-32C
Fans
QFX520048Y-FAN-AOIncludes: Front-to-back airflow fan model for QFX5120-32C models
QFX520048Y-FAN-AIIncludes: Back-to-front airflow fan model for QFX5120-32C models
Power supplies
QFX520048Y-APSU-AOIncludes: AC Power supply unit, front-to-back airflow for QFX5120-32C- AFO
QFX520048Y-APSU-AIIncludes: AC Power supply unit, back-to-front airflow for QFX5120-32C- AFI
QFX520048Y-DPSU-AOIncludes: DC Power supply unit, front-to-back airflow for QFX5120-32C- DC-AFO
QFX520048Y-DPSU-AIIncludes: DC Power supply unit, back-to-front airflow for QFX5120-32C- DC-AFI
MACsec encryption licenses
S-QFX5KC1-MACSEC-1Includes: Class C1 QFX5000, MACsec AES 256 Encryption Sub Software, Term: 1 Yr
S-QFX5KC1-MACSEC-3Includes: Class C1 QFX5000, MACsec AES 256 Encryption Sub Software, Term: 3 Yrs
S-QFX5KC1-MACSEC-5Includes: Class C1 QFX5000, MACsec AES 256 Encryption Sub Software, Term: 5 Yrs
S-QFX5KC1-MACSEC-PIncludes: Class C1 QFX5000, MACsec AES 256 Encryption Software, Perpetual
Services licenses
SVC-COR-QFX5KC1-MSIncludes: Juniper Care Core Support for S-QFX5KC1-MACSEC-P
Advanced Telemetry Feature (ATF) licenses
S-QFX5K-C1-ATF-PIncludes: SW, QFX5K, Class 1, ATF License SKU, Perpetual, SVC Customer Support to be purchased separately
S-QFX5K-C2-ATF-PIncludes: SW, QFX5K, Class 2, ATF License SKU, Perpetual, SVC Customer Support to be purchased separately

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Documentation