• Vibrant pink glossy Juniper fruit sticker for SA6500 SSL VPN gateway
1 1

Juniper

Juniper QFX5120-48Y-D-AFO2 | QFX5120 48-Port 25GbE Switch, 8x 100G QSFP28

QFX5120-48Y-D-AFO2

Stock Status: Enquire

Request Quote
Sale Sold out
Shipping calculated at checkout.
20-min response

Need a quote or bulk pricing? Answered within 20 minutes, Sydney business hours.

Description

The Juniper QFX5120-48Y-D-AFO2 is a high-performance 1U data center switch designed for leaf-spine architectures and high-density 25GbE server access. With 48 tri-speed SFP28 ports supporting 1/10/25GbE and 8 QSFP28 uplink ports delivering 40/100GbE, it provides exceptional scalability for EVPN-VXLAN fabrics and cloud-native workloads. This DC-powered variant features front-to-back airflow for hot-aisle containment and delivers ultra-low latency with 4 Tbps switching capacity.

Features

Layer 2 and Layer 3 switching with wire-speed performance
- EVPN-VXLAN support for overlay network architectures with L2/L3 gateway capabilities
- Virtual Chassis technology for multi-switch clustering
- Flexible forwarding table: 288,000 MAC addresses in L2 mode, 208,000 host entries in L3 mode
- Advanced routing protocols: BGP, OSPF, IS-IS, MPLS, L3 VPN, IPv6 6PE, BGP add-path
- VXLAN and OVSDB protocol support as L2 or L3 gateway
- Comprehensive QoS with eight hardware queues per port
- Port breakout support: QSFP28 to 4x 25GbE, QSFP+ to 4x 10GbE
- Control Plane Policing (CoPP) for DoS protection
- Role-Based Access Control (RBAC)
- Zero-Touch Provisioning (ZTP) and Python scripting support
- Automation-ready with NETCONF, REST API, and event scripting
- Storm control, port mirroring, and LLDP
- IEEE 802.1Q VLAN tagging and IEEE 802.1p priority
- Hot-swappable redundant DC power supplies and fans

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

View full details

specs-tabs

Technical Specifications

FAQs

Technical Specifications

48x 1/10/25GbE SFP28 ports
- 8x 40/100GbE QSFP28 uplink ports (each breakable to 4x 10GbE or 4x 25GbE)
- Switching capacity: 4 Tbps bidirectional
- Forwarding rate: 2 Bpps
- Latency: 800 nanoseconds
- CPU: 2.2 GHz quad-core Intel processor
- Memory: 16 GB RAM
- Storage: 50 GB SSD
- Power: Redundant DC power supplies
- Airflow: Front-to-back (port-side exhaust, AFO)
- Form factor: 1U rack-mountable
- Dimensions: 17.36 x 1.72 x 20.48 in (44.09 x 4.37 x 52.02 cm)
- Max power consumption: 272W
- Typical power consumption: 247W
- Management: CLI, Junos OS, NETCONF, REST API, ZTP
- 2x RJ-45 management ports

FAQs

Q: What deployment scenarios is the QFX5120-48Y-D-AFO2 designed for?
A: This switch is optimized for data center leaf-spine topologies, top-of-rack deployments with 25GbE server connectivity, and campus distribution layers requiring high-speed 100GbE uplinks. It excels in EVPN-VXLAN overlay networks and virtualized environments.

Q: What does the D-AFO2 designation indicate?
A: The D indicates DC power supplies, while AFO2 specifies front-to-back airflow with port-side exhaust, making it ideal for hot-aisle containment architectures. The redundant DC PSUs and fans provide high availability in telco and enterprise data centers.

Q: Can the QSFP28 ports be used with lower-speed optics?
A: Yes, the 8 QSFP28 ports support both 40GbE and 100GbE operation. Using breakout cables, each 100GbE QSFP28 port can be split into four 25GbE ports, and each 40GbE QSFP+ port into four 10GbE ports, expanding total port density to 80 ports.

Q: What Layer 3 routing protocols does the QFX5120-48Y support?
A: The switch supports comprehensive Layer 3 routing including BGP, OSPF, IS-IS, MPLS, L3 VPN, IPv6 6PE, and BGP add-path. It delivers full L3 gateway capabilities for routing between virtualized and bare-metal servers in overlay/underlay architectures.

Q: Is the QFX5120-48Y-D-AFO2 suitable for Virtual Chassis deployments?
A: Yes, the QFX5120 supports Virtual Chassis technology, allowing multiple switches to operate as a single logical device for simplified management and enhanced scalability. It also supports EVPN-VXLAN for modern fabric architectures.

Recently Viewed

  • Request a Quote

    Looking for competitive pricing? Submit a request, and our team will provide a tailored quote that fits your needs.

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Call us Now  

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Contact us