Product Overview
The Juniper Networks EX4400-48T-AFI is a high-performance Ethernet access switch from the EX4400 line, designed for secure, cloud-ready enterprise campus, branch, and data center networks. This 48-port 10/100/1000BASE-T non-PoE model features back-to-front (AFI) airflow and 550W AC power supply, ideal for deployments requiring efficient cooling in rack environments. Managed via Juniper Mist Wired Assurance with Mist AI, it simplifies operations, enhances visibility, and supports AI-driven insights for connected devices.
Architecture & Performance
The EX4400-48T-AFI leverages Junos OS for consistent L2/L3 capabilities, EVPN-VXLAN for scalable campus fabrics (including multihoming, core-distribution, and IP Clos), and Virtual Chassis technology interconnecting up to 10 switches as a single logical device using dedicated rear-panel 100GbE ports (supports HiGig or HGoE protocols). Key components include redundant hot-swappable power supplies and fans, MACsec AES-256 encryption on all user-facing interfaces, flow-based telemetry, and Junos Telemetry Interface (JTI) for real-time monitoring.
Supports full Layer 2/3 throughput with 64-byte packets, wire-rate performance across 48x1GbE access ports and 2×100/40GbE QSFP28 ports (expandable to 3x100GbE with module). Optional extension modules: 4×1/10GbE SFP+, 4×1/10/25GbE SFP28, or 1x100GbE QSFP28. High availability features: GRES, nonstop bridging (NSB), nonstop active routing (NSR), redundant trunk groups (RTG), cross-member LAG.
Software Features & Management
Cloud-managed with Mist AI for Day 0/1/2+ operations, template-based configs, dynamic port profiles, Marvis Virtual Network Assistant for automated troubleshooting (e.g., bad cables, L2 loops, VLAN issues). Flex licensing (C3 for 48 ports): Standard (base), Advanced/Premium (perpetual/subscription) unlocking L3 routing (OSPF/BGP IPv4/IPv6), MACsec, flow-based telemetry. Supports secure packet capture (pcap) export to cloud.
Layer 2/3 & Security
Layer 2: 802.1Q VLANs, LAGs (128 groups, 16 ports max), spanning tree protocols.
Layer 3: IPv4/IPv6 routing (with license), ACLs (PACL/VACL/RACL ingress up to 2048, egress 1024/512).
Security: MACsec AES-256, access security features, group-based policy (GBP) with EVPN-VXLAN for microsegmentation.
Ordering Information
For full ordering, power cords (120V default), optics/DACs, and accessories, consult Juniper. Enhanced limited lifetime warranty included.
