The Juniper Networks EX4100-F Ethernet Switch is a compact, AI-driven, cloud-ready access platform built for high-performance branch deployments. Available in 12, 24, and 48-port models, the EX4100-F supports PoE/PoE+ power delivery, advanced EVPN-VXLAN fabric, and zero-touch provisioning via Juniper Mist™. Its fanless 12-port model is ideal for silent operation, while all variants support flow-based telemetry and microsegmentation with group-based policies (GBP).
Cloud-Driven Intelligence
As part of the Juniper Mist™ Wired Assurance solution, the EX4100-F enables simplified onboarding, configuration, and day-2+ operations using AI-driven automation and telemetry insights. Rich streaming telemetry data improves switch visibility, reduces MTTR, and supports pre- and post-connection service level expectations (SLEs).
Key Specifications
- Port Density: 1GbE access ports, 1/10GbE uplink and stacking, multirate uplinks (100M/1/2.5/5/10GbE on EX4100-F-12P/T)
- Form Factor: 1RU (fanless for 12-port)
- Power: PoE+ up to 30W/port — 180W (12P), 370W (24P), 740W (48P)
- Switching Capacity: 256 Gbps
- Fabric Support: EVPN-VXLAN, Virtual Chassis (up to 10 switches)
Features & Benefits
AI-Driven Switching
EX4100-F switches can be onboarded, provisioned, and managed from the cloud using Mist AI. This helps streamline IT operations and enhances user experiences by leveraging telemetry-based health metrics and automated troubleshooting.
Microsegmentation Using Group-Based Policies (GBP)
Standards-based GBP leverages VXLAN technology to enforce consistent, location-agnostic security policies—even within the same VLAN. It allows dynamic segmentation of endpoints or applications to prevent lateral threats, all without configuring per-port firewall filters.
Flow-Based Telemetry
Provides granular analytics for thousands of flows per switch, enabling DDoS detection, packet delay measurement, and flow-based anomaly alerts using IPFIX. Admins can automate remediation tasks like port quarantining or traffic inspection.
Power over Ethernet (PoE)
The EX4100-F supports fast and perpetual PoE to ensure uninterrupted device power—even during switch reboot or startup. It is ideal for IP phones, wireless APs, and other critical powered devices.
Precision Time Protocol (PTP)
Integrated IEEE 1588v2 support allows EX4100-F to deliver highly accurate time synchronization in mobile backhaul and other timing-critical networks using a packet-based primary/client clock exchange.
EVPN-VXLAN Architecture
The switch supports an open, scalable EVPN-VXLAN fabric that enables Layer 2 and Layer 3 connectivity across distributed campus environments. This architecture modernizes the network by replacing rigid chassis-based models with a flexible IP-based underlay.
Virtual Chassis Technology
Up to 10 EX4100-F switches can be interconnected using Virtual Chassis technology, managed as a single logical unit. The 4 x 10GbE SFP+ front-panel ports support both stacking and uplink roles for deployment flexibility.




