EX3400-48T - Juniper EX3400 Series Ethernet Switches

Mfr. Part #: EX3400-48T
Brand: Juniper
Condition: Refurbished
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EX3400-48T

EX3400 48-port 10/100/1000BaseT, 4 x 1/10G SFP/SFP+, 2 x 40G QSFP+, redundant fans, front-to-back airflow, 1 AC PSU JPSU-150-AC-AFOincluded (optics sold separately) EX3400-48T
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EX3400-48T Overview

EX3400 48-port 10/100/1000BaseT, 4 x 1/10G SFP/SFP+, 2 x 40G QSFP+, redundant fans, front-to-back airflow, 1 AC PSU JPSU-150-AC-AFOincluded (optics sold separately) EX3400-48T

Overview
EX3400-48T Overview

Juniper EX3400, Managed, L2/L3, Gigabit Ethernet (10/100/1000), Rack mounting, 1U

EX3400-48T is a Juniper EX3400 switch with 48-port 10/100/1000BASE-T, 4 x 1/10GbE SFP/SFP+, 2 x 40GbE QSFP+, redundant fans, front-to-back airflow, 1 AC PSU JPSU-150-AC-AFO included (optics sold separately). EX3400 Ethernet Switches are a cost-effective solution for today’s most demanding converged data, voice, and video enterprise access networks. The compact, fixed-configuration 1U devices offer levels of performance and management previously available only with high-end access switches.

Quick Spec

SKU

EX3400-48T

Ports

48-port 10/100/1000BASE-T, 4 x 1/10GbE SFP/SFP+, 2 x 40GbE QSFP+

Backplane speed

160 Gbps

Data rate

336 Gbps

Throughput

250 Mpps (wire speed)

Dimensions (W x H x D)

17.4 x 1.7 x 13.8 in (43.7 x 4.4 x 35 cm)
1 rack unit

Product Details

Figure 1 shows the front panel of EX3400-48T.

Juniper EX3400-48T Front View

Note:

RJ-45 ports

Factory Reset/Mode button

Uplink ports

Port status mode LEDs

Mini-USB console port

Chassis status LEDs

Figure 2 shows the rear panel of EX3400 AC chassis.

Juniper EX3400 AC Rear View

Note:

Management Ethernet port

AC power supply

Protective earthing terminal

Serial Number ID Label

ESD point

QSFP+ uplink ports

Fan modules

RJ-45 console port

CLEI code label

USB port

Empty slot for power supply covered by a blank panel

Compare to Similar Items

SKU

EX3400-24T

EX3400-24P

EX3400-48T

EX3400-48P

Ports

24-port 10/100/1000BASE-T with 4 SFP+ and 2 QSFP+ uplink ports (optics not included)

24-port 10/100/1000BASE-T (24 PoE+ ports) with 4 SFP+ and 2 QSFP+ uplink ports (optics not included)

48-port 10/100/1000BASE-T, 4 x 1/10GbE SFP/SFP+, 2 x 40GbE QSFP+

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

Backplane speed

160 Gbps

160 Gbps

160 Gbps

160 Gbps

Data rate

288 Gbps

288 Gbps

336 Gbps

336 Gbps

Throughput

214 Mpps (wire speed)

214 Mpps (wire speed)

250 Mpps (wire speed)

250 Mpps (wire speed)

Dimensions (W x H x D)

17.4 x 1.7 x 13.8 in (43.7 x 4.4 x 35 cm)
1 rack unit

17.4 x 1.7 x 13.8 in (43.7 x 4.4 x 35 cm)
1 rack unit

17.4 x 1.7 x 13.8 in (43.7 x 4.4 x 35 cm)
1 rack unit

17.4 x 1.7 x 13.8 in (43.7 x 4.4 x 35 cm)
1 rack unit

336 Gbps, 250 Mpps, 1 GHz, 2 GB, 48x 10/100/ 1000BASE-T, 4x 1/10GbE SFP/SFP+, 2x 40GbE QSFP+, 442 x 44 x 350 mm

  • Managed L2/L3 Web-based management
  • Quality of Service (QoS) support
  • Basic switching RJ-45 Ethernet ports quantity: 48
  • 10G support 10BASE-T, 100BASE-T, 1000BASE-T
  • MAC address table: 32000 entries Switching capacity: 336 Gbit/s
  • Access Control List (ACL)
  • 1U Rack mounting Stackable
  • Power supply included

Summary Description

Juniper EX3400, Managed, L2/L3, Gigabit Ethernet (10/100/1000), Rack mounting, 1U

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Specification

EX3400-48T Specification

EX3400-48T Specification

Description

EX3400 48-port 10/100/1000BASE-T, 4 x 1/10GbE SFP/SFP+, 2 x 40GbE QSFP+, redundant fans, front-to-back airflow, 1 AC PSU JPSU-150-AC-AFO included (optics sold separately)

Form factor

Fixed platform
Virtual Chassis configuration consisting of up to 10 switches
Junos Fusion Enterprise Satellite device

Dimensions (W x H x D)

17.4 x 1.7 x 13.8 in (43.7 x 4.4 x 35 cm)
1 rack unit

Backplane speed

160 Gbps

Data rate

336 Gbps

Throughput

250 Mpps (wire speed)

40GBASE quad small form-factor pluggable plus transceiver (QSFP+) port densities

2

100GBASE C form-factor pluggable transceiver (CFP) port densities

N/A

Resiliency

Redundant, field-replaceable power supplies
Redundant trunk groups that provide port redundancy and simplify switch configuration

Operating system

Junos OS

Traffic monitoring

sFlow

Quality-of-service (QoS) queues/port

8 unicast/4 multicast

MAC addresses

32,000

Jumbo frames

9216 bytes

IPv4 unicast/multicast routes

36,000/4,000

IPv6 unicast/multicast routes

18,000/2,000

Number of VLANs

4,096

ARP entries

16,000

Frequently Asked Questions

What are the primary port configurations available on the Juniper EX3400-48T? +
The EX3400-48T features 48 fixed 10/100/1000BaseT access ports for standard RJ45 connectivity. For uplinks and high-speed backplane integration, it includes four 1/10G SFP/SFP+ ports and two 40G QSFP+ ports. This flexible port density makes it ideal for enterprise aggregation layers or high-performance server connectivity.
Can the EX3400-48T be used in a Virtual Chassis deployment? +
Yes, the EX3400-48T supports Juniper’s Virtual Chassis technology. You can interconnect up to 10 switches as a single logical device, simplifying management and providing a resilient, high-bandwidth architecture. This scalability allows your network to grow while maintaining a unified control plane across the entire stack.
What is the airflow configuration for the EX3400-48T switch? +
This unit is designed with a front-to-back airflow configuration. It features redundant fans to ensure consistent thermal management in standard data center racks. This design ensures compatibility with typical hot-aisle/cold-aisle containment strategies, maintaining optimal operating temperatures for long-term reliability in enterprise server rooms.
Is the EX3400-48T capable of Layer 3 routing functionality? +
The EX3400-48T functions as a versatile managed switch supporting both Layer 2 and Layer 3 routing capabilities. It handles essential routing protocols and features needed for branch or campus deployments, enabling efficient traffic management and segmentation within your network infrastructure.
Does the EX3400-48T include the power supply unit in the box? +
Yes, each EX3400-48T ships with one JPSU-150-AC-AFO power supply unit. This specific model is configured for front-to-back airflow to match the chassis cooling requirements. Please note that while the unit is fully operational with this included PSU, optics for the SFP/SFP+ and QSFP+ ports must be purchased separately.
How should I manage the Juniper EX3400-48T within my network? +
The switch is managed through the Junos OS, which offers a robust command-line interface (CLI) for granular configuration. It also supports network management platforms via SNMP and J-Web, providing flexible options for monitoring switch performance, managing VLANs, and deploying security policies across your enterprise network.
What is the performance benefit of the 40G QSFP+ uplink ports? +
The inclusion of two 40G QSFP+ ports provides significant bandwidth for uplink connectivity to core switches or high-speed storage arrays. By offloading heavy traffic from the 1G access ports to the 40G backbone, you effectively reduce congestion and minimize latency in high-traffic enterprise environments.
Are the SFP/SFP+ ports on the EX3400-48T compatible with different media types? +
The four 1/10G SFP/SFP+ ports are highly versatile and support a wide variety of transceivers, including short-range and long-range fiber optics or direct-attach copper (DAC) cables. This flexibility allows you to customize your uplink strategy based on the physical distance and bandwidth requirements of your specific deployment.
How can I obtain a bulk quote for multiple EX3400-48T units? +
If you are planning a large-scale infrastructure refresh or require multiple EX3400-48T units, contact the BuyRouterSwitch.com sales team directly. We specialize in volume procurement for enterprise projects and can provide competitive pricing, clear lead times, and professional assistance to ensure your hardware arrives exactly when you need it.
Why should I choose BuyRouterSwitch.com for my Juniper hardware procurement? +
BuyRouterSwitch.com is a trusted source for IT buyers seeking authentic enterprise networking equipment. We focus on providing a seamless purchasing experience for high-demand hardware like the EX3400-48T. By ordering through our platform, you gain access to our deep inventory and streamlined order processing, ensuring you receive genuine components for your mission-critical network architecture.

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