Juniper QFX5200-32C-AFI 32-Port 100GbE QSFP28 Layer 3 Data Center Spine Switch

The Juniper QFX5200-32C-AFI is a 32-port 100GBASE-X QSFP28 Layer 3 managed switch with back-to-front (AFI) airflow — a high-performance spine or leaf switch for Juniper IP fabric data center deployments requiring 100G port density, full EVPN/VXLAN support, and Junos OS-driven automation for hyperscale and enterprise data center architectures.

Key Features

• 32 x 100GbE QSFP28 ports for 3.2 Tbps switching capacity in 1U
• Back-to-front (AFI) airflow for front-exhaust rack and cold-aisle intake configurations
• Full EVPN/VXLAN for IP fabric spine and leaf data center deployments
• Supports 4x25G and 4x10G per-port breakout for flexible fabric density
• Junos OS with telemetry streaming for data center automation and visibility

Product Specifications

• Part Number: QFX5200-32C-AFI
• Manufacturer: Juniper Networks
• Ports: 32 x 100GbE QSFP28
• Switching Capacity: 3.2 Tbps
• Forwarding Rate: 2,380 Mpps
• Airflow: AFI (Back-to-Front)
• Form Factor: 1U Rack-mountable

Switch & Port Specifications

• MAC Address Table: 288,000 entries
• VLAN Support: 4,094 VLANs
• Breakout: 4x25GbE or 4x10GbE per QSFP28 port
• Jumbo Frames: 9,216 bytes
• Redundancy: Dual redundant hot-swap PSUs
• Stacking: No — spine/leaf role in IP fabric

Network & Protocol Specifications

• Routing: OSPFv2/v3, BGP, IS-IS, VRRP, ECMP
• EVPN/VXLAN: Full EVPN Type 2/3/5, VXLAN gateway and routing
• Multicast: PIM SM/SSM, IGMP, multicast VPN
• Security: ACLs, DHCP snooping, MACsec on all ports
• Management: Junos OS, NETCONF, gRPC telemetry, OpenConfig

Use Cases

• 100GbE spine switch in Juniper IP fabric data center architectures
• High-density 100G leaf switch for 25G server breakout via QSFP28 fan-out
• EVPN/VXLAN fabric spine for multi-tenant data center overlays
• Hyperscale data center interconnect and core switching at 100G density

Compatibility

• Standard QSFP28 100G optics, QSFP+ 40G optics (via adapter), and DAC/AOC cables
• EVPN/VXLAN interoperable with EX4650, QFX5110, QFX5120 leaf switches
• AFI airflow — match with AFI PSUs and fan trays for thermal consistency
• Managed via Junos OS, Juniper Apstra, and gRPC/OpenConfig for automation

Frequently Asked Questions

What is the difference between QFX5200-32C-AFI and QFX5200-32C-AFI-T2?

Both are 32-port 100GbE QSFP28 spine switches with AFI airflow, but differ in transceiver generation — the T2 suffix indicates a second-generation optic revision or hardware update. Verify your platform's specific hardware revision requirements with Juniper before ordering.

Can the QFX5200-32C-AFI ports be broken out to 25GbE?

Yes — each QSFP28 port supports 4x25GbE breakout via QSFP28 to 4xSFP28 breakout cables, enabling up to 128 x 25GbE connections from a single QFX5200-32C-AFI for high-density 25G server or leaf aggregation applications.

Does the QFX5200-32C-AFI support MACsec encryption?

Yes — the QFX5200-32C-AFI supports MACsec (IEEE 802.1AE) on all 32 QSFP28 ports for link-layer encryption of inter-switch fabric traffic, supporting security-sensitive data center deployments requiring in-flight data protection.

The Juniper QFX5200-32C-AFI delivers 3.2 Tbps of 100GbE switching capacity with full EVPN/VXLAN, MACsec, and Junos OS automation in a compact 1U AFI-airflow form factor — providing the high-performance spine and leaf platform for Juniper IP fabric data center architectures at 100G scale.