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EX4300-32F, Juniper 1U Fiber Switch with 32 SFP, 4 SFP+ and 2 QSFP+ Ports

Name: EX4300-32F, Juniper 1U Fiber Switch with 32 SFP, 4 SFP+ and 2 QSFP+ Ports
SKU: EX4300-32F
Price: 4131 USD
Availability: InStock
Rating: 4.8 (18 reviews)

Brand: Juniper
Model: EX4300-32F
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4.8/5.0

18 Reviews

11 Questions

List Price: $12,945.00

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EX4300-32F, Juniper 1U Fiber Switch with 32 SFP, 4 SFP+ and 2 QSFP+ Ports

100% Genuine Ready to Ship

$12,945.00

68% OFF

$4,131.00

Overview

Juniper EX4300-32F Overview

The Juniper EX4300-32F is a fixed 1U fiber Ethernet switch with 32 1G SFP ports, 4 built-in 10G SFP+ ports, and 2 built-in 40G QSFP+ ports. It supports front-to-back airflow, a 350W AC AFO power supply, optional uplink modules, and Virtual Chassis deployments of up to 10 switches.

Key Specifications

Port Configuration

32 × 1G SFP
4 × 10G SFP+
2 × 40G QSFP+

Switching Capacity

464 Gbps bidirectional

Forwarding Performance

345 Mpps

Uplink Module Options

EX-UM-2QSFP or EX-UM-8X8SFP

Power and Airflow

350W AC AFO
Front-to-back airflow

Virtual Chassis

Up to 10 EX4300 switches

Figure 1 shows the official front-panel layout of the Juniper EX4300-32F.

Official Juniper EX4300-32F front-panel diagram showing the SFP network ports, SFP+ uplink ports, LCD panel, chassis status LEDs, and Mini-USB console port

The official 32-port EX4300 front-panel diagram shows the SFP network ports, SFP+ uplink ports, LCD panel controls, chassis status LEDs, and Mini-USB console port.

Figure 2 shows the official rear-panel layout of the Juniper EX4300-32F.

Official Juniper EX4300-32F rear-panel diagram showing the AC power supplies, QSFP+ ports, fan modules, management port, console port, and USB port

The official 32-port EX4300 rear-panel diagram shows the AC power supplies, QSFP+ ports, fan modules, management port, console port, USB port, and identification labels.

Best Fit Applications

Fiber-Based Campus Access

The 32 1G SFP ports provide dense fiber connectivity for campus access, while the built-in 10G SFP+ and 40G QSFP+ ports support higher-speed uplinks.

Data Center Top-of-Rack Connectivity

The EX4300-32F supports data center top-of-rack deployments that require fiber server or storage connections, 10G/40G uplinks, and front-to-back airflow.

Fiber Aggregation and Distribution

The optional EX-UM-8X8SFP and EX-UM-2QSFP modules add 1G/10G or 40G connectivity for fiber aggregation and distribution requirements.

Virtual Chassis Deployment

The built-in QSFP+ ports and optional uplink module ports can be configured as Virtual Chassis Ports, allowing up to 10 EX4300 switches to operate as a single logical device.

Why EX4300-32F

Fiber-Dense Port Configuration

The EX4300-32F combines 32 1G SFP ports with 4 built-in 10G SFP+ ports and 2 built-in 40G QSFP+ ports for fiber access, aggregation, and higher-speed uplink connections.

Modular 10G and 40G Expansion

The EX-UM-8X8SFP adds eight dual-mode 1G/10G SFP/SFP+ ports, while the EX-UM-2QSFP adds two 40G QSFP+ ports. These module ports can also be configured as Virtual Chassis Ports.

Redundant Power and Replaceable Cooling

The platform supports redundant hot-swappable power supplies and field-replaceable fan modules. The EX4300-32F uses front-to-back airflow with two EX4300-FAN modules and a 350W AC AFO power supply.

Junos-Based L2 and L3 Capabilities

Junos OS provides Layer 2 and Layer 3 switching and routing, while the platform supports 12 hardware queues per port, 64,000 MAC addresses, 9216-byte jumbo frames, and IEEE 802.1AE MACsec.

Compare Related Models

	EX4300-32F	EX4300-48T	EX4300-24T	EX4300-24P	EX4300-48P
Port Configuration	32 × 1G SFP, 4 × 10G SFP+, 2 × 40G QSFP+	48 × 10/100/1000BASE-T, 4 × 40G QSFP+	24 × 10/100/1000BASE-T, 4 × 40G QSFP+	24 × 10/100/1000BASE-T PoE+, 4 × 40G QSFP+	48 × 10/100/1000BASE-T PoE+, 4 × 40G QSFP+
Optional Uplink Module	EX-UM-2QSFP or EX-UM-8X8SFP	EX-UM-4X4SFP	EX-UM-4X4SFP	EX-UM-4X4SFP	EX-UM-4X4SFP
PoE	No	No	No	PoE+	PoE+
Data Rate	464 Gbps	496 Gbps	448 Gbps	448 Gbps	496 Gbps
Forwarding Performance	345 Mpps	369 Mpps	333 Mpps	333 Mpps	369 Mpps
Power Supply	350W AC AFO	350W AC AFO	350W AC AFO	715W AC AFO	1100W AC AFO
Recommended Use	Fiber access, fiber aggregation, and data center ToR	High-density copper access	Smaller copper campus access	PoE access for APs and IP phones	High-density PoE access
Not Ideal For	Copper-only endpoints or PoE devices	Fiber-first access networks	32-port fiber deployments	Fiber-only access	Fiber-only access

Connectivity Options

Category	Part Number	Description
Uplink Modules	EX-UM-2QSFP	2-port 40G QSFP+ uplink module supporting up to two QSFP+ transceivers. The ports can also be configured as Virtual Chassis Ports.
Uplink Modules	EX-UM-8X8SFP	8-port dual-mode 1G/10G SFP/SFP+ uplink module supporting SFP, SFP+, or mixed transceiver configurations.

Category	Part Number	Description
Optical Interfaces	SFP, SFP+, QSFP+	Supports 1G SFP SX/LX, 10G SFP+ SR/USR/LR/ER/LRM/DAC, and 40G QSFP+ SR/DAC interface types. Optics are sold separately.

Category	Part Number	Description
Power Supplies	JPSU-350-AC-AFO-A	350W AC AFO power supply with front-to-back airflow; shipped by default with EX4300-32F.

Category	Part Number	Description
Fan Modules	EX4300-FAN	AIR OUT fan module for front-to-back airflow; two modules are shipped by default with EX4300-32F.

Category	Part Number	Description
Virtual Chassis and Switch Interconnection	QSFP+ VCP Connections	The built-in QSFP+ ports and supported uplink module ports can be configured as Virtual Chassis Ports for Virtual Chassis or Virtual Chassis Fabric connections. Up to 10 EX4300 switches can form one Virtual Chassis.

Compatibility Check

Check Item	EX4300-32F Requirement	Selection Guidance
Access Port Type	32 × 1G SFP	Use matching 1G SFP optics and fiber standards.
Fixed 10G Uplinks	4 × 10G SFP+	Use compatible 10G SFP+, LRM, or DAC connections according to the link design.
Fixed 40G Uplinks	2 × 40G QSFP+	Use compatible 40G QSFP+ optics or DAC connections.
Optional Module	EX-UM-2QSFP or EX-UM-8X8SFP	Choose the module according to the required 1G/10G or 40G expansion.
PoE Requirement	Not supported	Do not select this model when endpoint power delivery is required.
Power and Airflow	350W AC AFO, front-to-back airflow	Use matching AFO power and fan components; do not mix AFO and AFI components.
Virtual Chassis	Up to 10 EX4300 switches	Use QSFP+ or supported uplink module ports configured as VCPs.
Upstream Device Connection	Router, aggregation switch, or Ethernet device with matching interface	Match interface speed, transceiver type, fiber standard, and configuration before deployment.

Quality Certifications

Specification

Juniper EX4300-32F Specification

Product Information
Product Code	EX4300-32F
Product Type	Fixed 1U fiber Ethernet switch
Software	Junos OS
PoE	Not supported
Port Configuration
1G SFP Ports	32
10G SFP+ Ports	4 built-in
40G QSFP+ Ports	2 built-in
Optional Uplink Module Slot	1
Management Port	1 × RJ-45
Console Ports	1 × RJ-45 and 1 × Mini-USB Type B
USB Port	1 × USB Type-A
Virtual Chassis Port Type	QSFP+
Virtual Chassis Port Count	2
Virtual Chassis Scale	Up to 10 EX4300 switches
Performance
Virtual Chassis Interconnect	320 Gbps
Packet Switching Capacity	232 Gbps unidirectional / 464 Gbps bidirectional
Layer 2/Layer 3 Throughput	345 Mpps
MAC Addresses	64,000
Jumbo Frames	9216 bytes
VLAN IDs	4093
Hardware QoS Queues	12 per port
IPv4 Host Routes	32,000
IPv4 RIB Prefixes	16,000
IPv4 Multicast Routes	16,000 routes / 8000 groups
IPv6 Host Routes	15,000
IPv6 RIB Prefixes	4000
IPv6 Multicast Routes	16,000 routes / 8000 groups
ARP Entries	64,000
LAGs	128
Maximum Ports per LAG	16
Uplink and Optics
Optional 1G/10G Uplink Module	EX-UM-8X8SFP
Optional 40G Uplink Module	EX-UM-2QSFP
Maximum 10G Port Density	4 fixed + 8 with the optional EX-UM-8X8SFP module
Maximum 40G Port Density	2 fixed + 2 with the optional EX-UM-2QSFP module
1G SFP Optic Types	SX and LX
10G SFP+ Optic Types	SR, USR, LR, ER, LRM, and DAC
40G QSFP+ Optic Types	SR and DAC
Switching, Routing, and Security
Switching Engine Mode	Store and forward
Layer 2 Features	IEEE 802.1Q VLAN tagging, VLANs, MSTP, VSTP, RSTP, LACP, LLDP, LLDP-MED, PVST+, MVRP, voice VLAN, and Layer 2 protocol tunneling
Layer 3 Features	Static routing, RIPv1/v2, OSPF, BGP, IS-IS, VRRP, VRF-Lite, BFD, RVI, RIPng, OSPFv3, and IPv6 routing
Access Security	802.1X, MAC authentication, RADIUS, DHCP snooping, IP source guard, dynamic ARP inspection, control plane DoS protection, and MACsec
MACsec	IEEE 802.1AE hardware-based traffic encryption with near line-rate support on Gigabit Ethernet and 10 Gigabit Ethernet ports
Access Control Lists	Port-based, VLAN-based, and router-based ACLs
Management and High Availability
Management Interfaces	CLI, J-Web, Junos Space, Network Director, and Juniper Routing Director
Virtual Chassis	Up to 10 EX4300 switches operating as a single logical device
High Availability	Redundant hot-swappable power supplies, field-replaceable fan modules, GRES, nonstop bridging, and nonstop routing
Uplink Module Replacement	Online insertion and removal supported
Power and Cooling
Default Power Supply	JPSU-350-AC-AFO-A
Power Supply Rating	350W AC AFO
Power Supply Count	2
Power Supply Replacement	Hot-removable and hot-insertable
Airflow Direction	Front-to-back
Airflow Type	AFO
Fan Module	EX4300-FAN
Fan Module Count	2
Fan Module Replacement	Hot-removable and hot-insertable
Dimensions and Weight
Form Factor	1U
Width	17.36 in. / 44.1 cm
Height	1.72 in. / 4.37 cm
Depth, Base Unit	17.87 in. / 45.4 cm
Depth, with Power Supply	19 in. / 48.28 cm
Depth, with Power Supply and Front Module	19.31 in. / 49.1 cm
Chassis Weight	13 lb. / 5.9 kg
Weight with One Power Supply and Two Fan Modules	16.1 lb. / 7.3 kg
Packaging Weight	12.7 kg
Environmental Specifications
Operating Temperature	32° to 113°F / 0° to 45°C
Storage Temperature	–40° to 158°F / –40° to 70°C
Operating Altitude	Up to 10,000 ft. / 3048 m
Non-operating Altitude	Up to 16,000 ft. / 4876 m
Operating Humidity	10% to 85% noncondensing
Non-operating Humidity	0% to 95% noncondensing
Maximum Acoustic Noise	39 dB
Seismic Tolerance	Zone 4
Maintenance Clearance	24 in. / 60.96 cm

Still unsure about your config? Talk to an engineer →

Quality Certifications

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Q&A

Questions & Answers

Are the products sold on router-switch.com authentic?

Yes, router-switch.com only sells 100% genuine products from authorized brands. As a multi-brand authorized distributor, all items are sourced through official channels and include valid manufacturer warranties. Customers may verify authorization via brand websites or request certification documents.

Can the EX4300-32F be used in a Virtual Chassis configuration?

Yes, the EX4300-32F supports Virtual Chassis technology, allowing for simplified management and scaling.

How does the EX4300-32F compare to the Cisco Catalyst 3850?

The EX4300-32F offers comparable performance with 32 GBASEX SFP ports and is generally more cost-effective.

What accessories are available for the EX4300-32F?

Accessories include SFP transceivers, power supplies, and rack-mounting kits.

Learn More

Are the products sold on router-switch.com authentic?

Can the EX4300-32F be used in a Virtual Chassis configuration?

Yes, the EX4300-32F supports Virtual Chassis technology, allowing for simplified management and scaling.

How does the EX4300-32F compare to the Cisco Catalyst 3850?

The EX4300-32F offers comparable performance with 32 GBASEX SFP ports and is generally more cost-effective.

What accessories are available for the EX4300-32F?

Accessories include SFP transceivers, power supplies, and rack-mounting kits.

What are common troubleshooting tips for the EX4300-32F?

Common troubleshooting includes verifying the power supply, checking port connections, and updating firmware.

Are there any alternative products to the EX4300-32F?

Yes, alternatives include the Cisco Catalyst 3850 series and Aruba 2930F series switches.

Does the EX4300-32F require regular firmware upgrades?

Yes, it is advisable to keep the EX4300-32F firmware up-to-date for optimal performance and security.

How do you install the EX4300-32F switch?

The EX4300-32F can be rack-mounted or used in a standalone setup, using standard mounting brackets and hardware.

What application scenarios are suitable for EX4300-32F?

The EX4300-32F is suitable for data centers, enterprise campus, and service provider networks.

What are the key features of the EX4300-32F switch?

The EX4300-32F features 32 GBASEX SFP ports, Virtual Chassis technology, and Layer 3 capabilities.

Is the Juniper EX4300-32F cost-effective for mid-sized networks?

Yes, the EX4300-32F is a cost-effective solution, providing 32 ports GBASEX SFP, ideal for mid-sized networks.

Warranty

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