• Vibrant pink glossy Juniper EX4300-32F switch sticker
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Juniper

Juniper EX4300-32F | EX4300 32-Port SFP Switch, 4x 10G SFP+, 2x 40G QSFP+

EX4300-32F

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Description

The EX4300-32F is a fixed-configuration 1U fibre switch from Juniper's EX4300 line, built for campus, branch and data centre access, as well as small core or aggregation roles. It suits wiring closets and top-of-rack deployments where fibre connectivity to the edge is needed, and a pair of 32-port EX4300 fibre switches can also serve as a consolidated aggregation layer.

This variant provides 32 100/1000BASE-X SFP access ports, four fixed 10GBASE-X SFP+ ports and two fixed 40GBASE-X QSFP+ ports. It delivers 232 Gbps unidirectional (464 Gbps bidirectional) switching capacity and 345 Mpps of wire-speed L2/L3 throughput. Power comes from a 350 W AC supply with front-to-back airflow, with a second internal PSU slot available for load-sharing redundancy. It is not a PoE switch. Up to 10 members can be joined in a Virtual Chassis over a 320 Gbps backplane, and the 40GbE ports can be used as Virtual Chassis ports or uplinks.

It runs Junos OS, with Flex Standard-tier features included in the shipping image and Flex Advanced or Premium licences adding further features. Optional uplink modules are the EX-UM-8X8SFP (8-port 1GbE/10GbE SFP+) and EX-UM-2QSFP (2-port 40GbE QSFP+). Optics are sold separately.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Virtual Chassis technology manages up to 10 EX4300 or EX4600 switches as a single device
- Hot-swappable redundant internal power supplies and 2 field-replaceable fans
- Modular Junos OS, consistent with Juniper routing, switching and security platforms
- Hot-insertable uplink modules (1GbE/10GbE or 40GbE) added without powering down the switch
- Cloud onboarding, management and AI-driven troubleshooting via Juniper Mist Wired Assurance
- Dedicated out-of-band management RJ-45 port, USB port and console ports
- Port profiles for automatic configuration, including desktop, IP phone, wireless access point and uplink
- Digital optical monitoring on optical ports

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Access ports: 32 x 100/1000BASE-X SFP
- Fixed uplinks: 4 x 10GBASE-X SFP+ and 2 x 40GBASE-X QSFP+
- PoE/PoE+ ports: 0 (no PoE budget)
- Maximum 10GbE ports with uplink module: 12
- Maximum 40GbE ports with uplink module: 4
- Uplink module options: EX-UM-8X8SFP (8-port 1GbE/10GbE SFP+) or EX-UM-2QSFP (2-port 40GbE QSFP+)
- Switching capacity: 232 Gbps unidirectional / 464 Gbps bidirectional
- L2/L3 throughput: 345 Mpps wire speed (64-byte)
- Virtual Chassis backplane: 320 Gbps, up to 10 members
- Power supply: 350 W AC, front-to-back airflow
- Power input: autosensing 100-120 V / 200-240 V AC
- Maximum inrush current: 50 A
- Switching mode: store and forward
- CPU: 1.5 GHz dual-core PowerPC
- DRAM: 3 GB with ECC
- Storage: 4 GB
- Maximum MAC addresses: 64,000
- Jumbo frames: 9216 bytes
- VLANs supported: 4093 (IDs 1 to 4094)
- Dimensions (base unit): 44.1 x 4.37 x 45.4 cm (W x H x D)
- Weight (no PSU or fan module): 5.9 kg
- Weight (single PSU and two fan modules): 7.3 kg
- Operating temperature: 0 to 45 C
- Storage temperature: -40 to 70 C
- Acoustic noise: 39 dBA

FAQs

Q: Does the EX4300-32F need a licence?
A: It runs Junos OS, and Flex Standard-tier features are included in the image that ships with the switch. Flex Advanced or Premium licences are needed for additional features, and MACsec requires a separate licence (EX-QFX-MACSEC-ACC3).

Q: Does this switch support PoE?
A: No. The EX4300-32F has no PoE ports and no PoE budget. It is a fibre SFP access and aggregation switch powered by a 350 W AC supply.

Q: Which optics can I use in the ports?
A: The 32 SFP ports accept GbE SFP optics (SX, LX) as well as 100BASE-FX and 1000BASE-T copper SFPs. The 10GbE SFP+ ports take SR, USR, LR, ER, LRM and DAC options, and the 40GbE QSFP+ ports take SR and DAC options.

Q: Can I add more uplink ports?
A: Yes. The EX-UM-8X8SFP adds eight 1GbE/10GbE SFP+ ports and the EX-UM-2QSFP adds two 40GbE QSFP+ ports. Both are hot-insertable.

Q: Can it be stacked with other switches?
A: Yes. Virtual Chassis supports up to 10 EX4300 and/or EX4600 switches managed as one device, and it can also be combined with QFX5100 switches. The two fixed 40GbE QSFP+ ports can act as Virtual Chassis ports.

Q: What airflow does this model use?
A: This variant has a 350 W AC power supply with front-to-back airflow (AFO). Operating temperature for AFO models is 0 to 45 C.

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