Juniper EX3400-48P 48-port 10/100/1000BASE-T (48 PoE+ ports) with 4 SFP+ and 2 QSFP+ uplink ports (optics not included)


12 Months

SKU: 2015190 Category:


Product Overview

Juniper Networks EX3400 Ethernet Switch delivers a high-performance, flexible, and cost-effective solution for today’s most demanding converged data, voice, and video enterprise access environments.
The EX3400 supports Juniper Networks Virtual Chassis technology, allowing up to 10 switches to be interconnected over uplink ports and managed as a single device, delivering a scalable, pay-as-you-grow solution for expanding network environments.
The EX3400 is onboarded, provisioned, and managed in the Juniper Mist Cloud Architecture. Mist Wired Assurance delivers better experiences for connected devices through AI-powered automation and service levels.

Product Description

The Juniper Networks® EX3400 Ethernet Switch with Juniper Networks Virtual Chassis technology provides enterprises with the flexibility and ease of management that previously was only available with higher-end access switches. The fixed-configuration EX3400 supports a number of key features, including:

  • 24-port and 48-port models with and without Power over Ethernet (PoE/PoE+) are for campus wiring closet deployments.
  • Cloud-ready and zero-touch provisioning (ZTP)-enabled for Juniper Mist Wired Assurance
  • Data center-optimized cooling options offer both front-to-back and back-to-front airflows, making the EX3400 suitable for GbE data center access deployments.
  • Two redundant, field-replaceable power supplies each provide up to 920 watts of power.
  • 24-port data center models are included for metro deployments.
  • Four dual-mode (GbE/10GbE) small form-factor pluggable transceiver (SFP/SFP+) uplink ports and two 40GbE QSFP+ ports are available.
  • Uplink ports can be configured as Virtual Chassis interfaces and connected via standard 10GbE/40GbE optic interfaces (40GbE uplink ports are preconfigured by default as Virtual Chassis ports).
  • Comprehensive Layer 2 functionality with RIP and static routing is provided.
  • A compact, 13.8-inch deep 1 U form factor supports flexible deployment options.
  • An easy-to-manage solution includes centralized software upgrades.
  • Support is available for the same consistent modular Juniper Networks Junos operating system control plane feature implementation used by all other Juniper fixed-configuration Juniper Networks EX Series Ethernet Switches.
  • Support is provided for Layer 3 (OSPF v2, IGMP v1/v2/v3, PIM, VRRP, BFD, virtual router) via an enhanced feature license (optional license required).
  • Support is available for IPv6 management, including neighbor discovery, stateless auto configuration, telnet, SSH, DNS, system log, NTP, ping, traceroute, ACL, CoS static routing, and RIPng.
  • IPv6 routing features (OSPFv3, virtual router support for unicast, VRRPv6, PIM, MLDv1/v2) are supported via an enhanced feature license.
  • Support is available for Border Gateway Protocol (BGP), multiprotocol BGP (MBGP), and Intermediate System-to-Intermediate System (IS-IS) via an optional Advanced Feature license.
  • Energy Efficient Ethernet (EEE) capability is provided.

Dimensions (W x H x D)

  • Base unit: 17.36 x 1.72 x 13.78 in (44.1 x 4.37 x 35 cm)
  • With power supply installed: 17.36 x 1.72 x 15.05 in (44.1 x 4.37 x 38.24 cm)
  • With power supply and front module installed: 17.36 x 1.72 x 15.19 in (44.1 x 4.37 x 38.58 cm)


  • 160 Gbps (with QSFP+ ports) or 80 Gbps (with SFP+ ports) Virtual Chassis interconnect to link up to 10 switches as a single logical device


  • Fixed 4-port uplinks can be individually configured as GbE (SFP) or 10GbE (SFP+) ports; 2 x 40G QSFP+ ports.

System Weight

  • EX3400 switch (no power supply or fan module): 10.49 lb (4.76 kg) maximum
  • EX3400 switch (with single power supply and two fan modules): 12.65 lb (5.74 kg) maximum
  • 150 W AC power supply: 1.43 lb (0.65 kg)
  • 600 W AC power supply: 1.82 lb (0.83 kg)
  • 920 W AC power supply: 1.87 lb (0.85 kg)
  • 150 W DC power supply: 1.43 lb (0.65 kg)
  • Fan module: 0.16 lb (0.07 kg)
Hardware Specifications

Switching Engine Model

  • Store and forward


  • 2 GB with ECC


  • 2 GB


  • Dual Core 1 GHz

GbE Port Density per System

  • EX3400-24T/EX3400-24P/EX3400-24T-DC: 30 (24 host ports + four 1/10 GbE and two 40GbE uplink ports)
  • EX3400-48T/EX3400-48T-AFI/EX3400-48P/EX3400-48T-DC: 54 (48 host ports + four 1/10 GbE and two 40GbE uplink ports)

Physical Layer

  • Cable diagnostics for detecting cable breaks and shorts
  • Auto medium-dependent interface/medium-dependent interface crossover (MDI/MDIX) support
  • Port speed downshift/setting maximum advertised speed on 10/100/1000BASE-T ports
  • Digital optical monitoring for optical ports

EX3400-48P Specifications

Total 10/100/1000 BASE-T Ports 48 PoE+
Uplinks 10GbE/GbE SFP+/SFP ports, 2 40GbE QSFP+ ports
Airflow Front-to-back
Power Supply Type AC
PoE+ Power (Budget W) 740W/1440W
Max. System Power Consumption (W)* 120
Power Supply Rating (W) 920W
Packet-Switching Capacities (Maximum with 64-Byte Packets) 168 Gbps (unidirectional)/336 Gbps (bidirectional)
Layer 2/Layer 3 Throughput (Mpps) (Maximum with 64 Byte Packets) 250 Mpps


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