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Home Networking Network Switches Juniper QFX5120-48Y-AFI 48x25GbE Leaf Switch

Juniper QFX5120-48Y-AFI 48x25GbE Leaf Switch

Brand:
Juniper

The Juniper QFX5120-48Y-AFI is a high-performance 1U data center switch designed for modern leaf-spine architectures. Featuring 48x 1/10/25GbE SFP28 ports and 8x 40/100GbE QSFP28 uplinks, it delivers ultra-low latency, 2 Tbps switching capacity, and advanced Layer 3 routing for enterprise, cloud, and hyperscale deployments in Singapore data centers.

OVERVIEW

  • The Juniper QFX5120-48Y-AFI is engineered for scalable data center fabrics, cloud networking, and enterprise core aggregation. Built with Juniper’s proven Junos OS, this switch supports advanced Layer 2 and Layer 3 networking with comprehensive routing protocols including BGP, OSPF, IS-IS, MPLS, and VXLAN-ready architectures.
  • Designed with back-to-front airflow for optimized thermal efficiency in modern server racks, the QFX5120-48Y-AFI offers exceptional throughput, low latency, and automation-ready operations. Its high-density 25GbE access ports and 100GbE uplinks make it ideal for Singapore enterprises, colocation providers, and high-performance computing environments requiring future-ready networking infrastructure.

USE CASES

  • Provides high-speed east-west traffic performance for modern enterprise and hyperscale data centers.
  • Supports scalable virtualized and cloud-native workloads with low latency and high throughput.
  • Ideal for aggregating high-density 10G/25G access layers into resilient 100G backbone networks.
  • Enables ultra-fast server-to-server communication for AI, analytics, and compute-intensive workloads.
  • Perfect for Singapore colocation facilities requiring scalable multi-tenant network fabrics.

KEY FEATURES

  • 48 x 1/10/25GbE SFP28 high-speed access ports
  • 8 x 40/100GbE QSFP28 uplink interfaces
  • High-performance 2 Tbps switching capacity
  • Up to 1.31 Billion packets per second forwarding rate
  • Advanced Layer 3 routing and EVPN-VXLAN readiness
  • Supports BGP, OSPF, IS-IS, MPLS, RIP, VRRP, and PIM
  • Stackable 1U rack-mount form factor
  • Back-to-front airflow optimized for data center deployment
  • Jumbo frame support up to 9216 bytes
  • Comprehensive security and remote management support
  • Automation-ready with CLI, SNMP, SSH, and OVSDB support
  • Designed for leaf-spine, enterprise core, and cloud fabrics

    • TECHNICAL SPECIFICATIONS

  • Brand: Juniper 
  • Model: QFX5120-48Y-AFI
  • Product Type: Data Center Switch
  • Series: QFX5120 Series
  • Device Type: Managed Layer 3 Switch
  • Form Factor: 1U Rack-Mountable
  • Airflow: Back-to-Front Airflow
  • Stackable: Yes
  • Switching Capacity: 2 Tbps
  • MAC Address Table Size: 288K Entries
  • Jumbo Frame Support: 9216 Bytes
  • VLAN Support: 4093 VLANs
  • IPv4 Prefixes: 351,000
  • IPv6 Prefixes: 168,000
  • IPv4 Host Entries: 208,000
  • IPv6 Host Entries: 104,000
  • ECMP Paths: 64
  • Management: SNMP v1/v2/v3, CLI, SSH, HTTP, Telnet, OVSDB

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