The EX4400 Ethernet Switch is a cloud-ready, AI-powered access switching platform designed for high-performance campus deployments. It offers advanced capabilities such as PoE/PoE++, MACsec AES-256 encryption, microsegmentation using group-based policies (GBP), EVPN-VXLAN integration, and flow-based telemetry. Built to simplify operations, the EX4400 enhances security, scalability, and visibility across enterprise networks.
Cloud-Driven Intelligence
Integrated with Juniper Mist™ Wired Assurance, the EX4400 allows for effortless onboarding, configuration, and management from the cloud. Mist AI automates troubleshooting and streamlines IT workflows, while telemetry data provides continuous insights into switch health and user experiences.
Model Variants
- EX4400-48F: 12 x 10GbE + 36 x 1GbE and 4 x 10/25GbE uplinks
- EX4400-24P/T: 24 x 1GbE PoE/Non-PoE and 4 x 10/25GbE uplinks
- EX4400-48P/T: 48 x 1GbE PoE/Non-PoE and 4 x 10/25GbE uplinks
Key Specifications
- Port Density: 1/10GbE access ports, 100GbE uplink/stacking, optional 10/25GbE uplink
- Form Factor: 1 RU
- Power: PoE++ up to 90W per port; 1800W power budget (48P), 1440W (24P)
- Switching Capacity: 912 Gbps
- Fabric: EVPN-VXLAN, Virtual Chassis
Features & Benefits
AI-Driven Switching
Manage the EX4400 through Juniper Mist Cloud with Wired Assurance. AI insights and automation enhance network performance while streaming telemetry provides real-time health data and service-level metrics for connected devices.
End-to-End Campus Fabric
Leverage Virtual Chassis and EVPN-VXLAN to simplify network design and scalability. The EX4400 supports Layer 3 IP-based underlays and VXLAN overlays for seamless site interconnectivity and device segmentation.
Microsegmentation
Use group-based policies (GBP) with VXLAN for standards-based microsegmentation. Secure endpoints and segment traffic—even within the same VLAN—across the network without manual policy updates.
Flow-Based Telemetry
Monitor thousands of real-time traffic flows per switch without CPU impact. Automate threat detection and mitigation during events like DDoS attacks through programmable workflows and traffic analysis.
PoE, PoE++, and Fast PoE
Support for IEEE 802.3bt standard enables up to 90W per port. Fast PoE ensures power delivery resumes instantly after reboot, ideal for IoT, Wi-Fi 6 APs, and mobile devices.
Product Highlights
- Cloud-ready, AI-driven with Juniper Mist Wired Assurance and Marvis VNA
- EVPN-VXLAN support extended to the access layer
- MACsec AES-256 encryption for enhanced security
- PoE++ support with high power budget
- Microsegmentation with group-based policies (GBP)
- Flow-based telemetry for anomaly detection
- Transparent clock support with Precision Timing Protocol (PTP)
- Supports up to 10-member Virtual Chassis architecture




