The Juniper EX3400-24T is a high-performance, non-PoE 24-port Gigabit Ethernet switch with 4x SFP+ (1/10GbE) and 2x QSFP+ (40GbE) uplink ports, designed for enterprise campus access, data center top-of-rack (ToR), and high-speed branch networks. Delivering 288 Gbps switching capacity, 214 Mpps wire-speed throughput, and Juniper’s Junos OS, it provides scalable, secure, and cost-effective connectivity for converged data, voice, and video traffic.
Comprehensive Product Overview
The Juniper EX3400-24T is a fixed-configuration, 1U rackmount Ethernet switch purpose-built for enterprise access layers, data center top-of-rack (ToR) deployments, and high-density branch offices requiring non-PoE Gigabit connectivity and high-speed 10GbE/40GbE uplinks. As part of Juniper’s EX3400 series, it bridges the gap between entry-level and high-end access switches, delivering carrier-grade performance, scalability, and manageability at a cost-effective price point
Equipped with 24x 10/100/1000BASE-T RJ45 ports for high-density Gigabit end-device connectivity (workstations, servers, printers, and non-PoE IoT devices), 4x SFP+ dual-mode (1/10GbE) uplink ports for flexible fiber or copper uplinks, and 2x QSFP+ (40GbE) uplink ports for ultra-high-speed connections to aggregation/core switches or Virtual Chassis stacking. Powered by Juniper’s advanced ASIC and a 1.5GHz CPU, it delivers 288 Gbps switching capacity and 214 Mpps wire-speed Layer 2 throughput, ensuring non-blocking performance even under full load。
Running on Junos OS, the EX3400-24T provides consistent, carrier-grade reliability across Juniper’s portfolio, simplifying management and reducing operational complexity. It supports Virtual Chassis (up to 10 switches as one logical device) and Junos Fusion Enterprise (satellite mode), enabling scalable, unified network management for growing environments. With data center-optimized cooling (front-to-back/back-to-front airflow), redundant hot-swappable power supplies, and cloud management readiness via Juniper Mist Wired Assurance, it meets modern enterprise and data center demands for efficiency, reliability, and scalability.
Key Features & Business Benefits
1. High-Density Port Configuration with 10GbE/40GbE Uplinks
24x 10/100/1000BASE-T ports: Non-PoE, auto-sensing Gigabit connectivity for end devices.
4x SFP+ (1/10GbE) uplinks: Flexible fiber/copper options for 1GbE or 10GbE aggregation links.
Business Benefit: Supports complex segmented networks and dynamic routing; eliminates need for separate routers in small campuses or data center access layers.
5. AI-Powered Cloud Management & Automation
Junos OS: Unified CLI, J-Web GUI, SNMP, and Junos Space management; consistent experience across all Juniper devices.
Juniper Mist Wired Assurance: AI-driven cloud management with Marvis AI insights; zero-touch provisioning (ZTP) for automated onboarding.
Business Benefit: Reduces IT training costs; accelerates deployment and resolves issues faster with AI-driven automation and real-time analytics.
6. Enterprise-Grade Security & QoS
Port security: MAC limiting, 802.1X authentication, PEAP/TTLS support, MAC address filtering.
Junos OS firewall filters: Control traffic access; prevent spoofing and unauthorized network entry.
8 QoS queues per port: Prioritize voice, video, and data traffic; ensure quality for business-critical applications.
Business Benefit: Protects sensitive data; complies with enterprise security policies and regulatory requirements (HIPAA, PCI-DSS).
7. Compact 1U Design & Data Center-Optimized Cooling
1U rackmount: Space-saving form factor for standard 19-inch racks; 13.8-inch deep footprint for shallow cabinets.
Data center cooling: Front-to-back or back-to-front airflow options; ideal for data center ToR deployments.
Business Benefit: Saves valuable rack space; fits in space-constrained environments (data center cabinets, branch closets).
Fixed AC (100–240V, 50/60Hz); optional 1+1 redundant hot-swappable PSUs
Dimensions (H×W×D)
4.4 cm × 43.7 cm × 35 cm (1U)Juniper Networks
Weight
~5.4 kg
Operating Temperature
0°C to 45°C
Security
802.1X, PEAP/TTLS, MAC limiting, firewall filtersJuniper Networks
Compliance
IEEE 802.3, 802.3ab, 802.3ad, 802.1Q, 802.1X
Ideal Application Scenarios
Enterprise Campus Access Layers: High-density non-PoE Gigabit connectivity for workstations, servers, and printers in large office buildings, universities, and classrooms.
Data Center Top-of-Rack (ToR): 10GbE/40GbE uplinks connect servers to aggregation/core switches; data center-optimized cooling for rack deployments.
High-Speed Branch & Remote Offices: Cost-effective non-PoE switching for large branches; supports high-bandwidth data, voice, and video convergence.
Retail & Hospitality Backbone Networks: Connects POS systems, servers, and non-PoE IoT devices in multiple stores, hotels, and restaurants; high-speed uplinks for inter-branch connectivity.
Converged High-Bandwidth Environments: Supports large file transfers, database replication, and 4K video streaming; ideal for media, healthcare, and finance industries.
USB Flash Drive: For Junos OS upgrades and configuration backups.
Rack Mount Kits: Included for 19-inch rack installation.
Redundant Power Supplies: Optional hot-swappable AC/DC PSUs for 1+1 redundancy.
Frequently Asked Questions (FAQ)
Q1: Does the EX3400-24T support PoE?
A1: No. The EX3400-24T is a non-PoE model. For PoE+ support, choose the EX3400-24P (720W PoE budget).
Q2: What is the maximum number of switches in a Virtual Chassis?
A2: The EX3400-24T supports up to 10 switches in a Virtual Chassis via SFP+/QSFP+ uplink ports.
Q3: Can the EX3400-24T be used in data center ToR deployments?
A3: Yes. It features data center-optimized cooling (front-to-back/back-to-front airflow) and 10GbE/40GbE uplinks, making it ideal for data center top-of-rack deployments.
Q4: What operating system does the EX3400-24T use?
A4: It runs on Junos OS, Juniper’s unified operating system that delivers consistent features, security, and management across routers, switches, and firewallsJuniper Networks.
Q5: Does the EX3400-24T support cloud management?
A5: Yes. It supports Juniper Mist Wired Assurance, an AI-powered cloud management platform for automated onboarding, monitoring, and troubleshooting.
Q6: What is the switching capacity of the EX3400-24T?
A6: The EX3400-24T provides 288 Gbps switching capacity and 214 Mpps wire-speed Layer 2 throughput.
