• Vibrant pink glossy Juniper fruit sticker for EX4300-24T switch
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Juniper

Juniper EX4300-24T | EX4300 24-Port Gigabit Switch, 350W AC, Front-to-Back

EX4300-24T

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Description

The Juniper EX4300-24T is a 24-port 10/100/1000BASE-T Layer 2 and Layer 3 access switch from the EX4300 line. It is a non-PoE model aimed at campus, branch office and data centre Gigabit access, and it scales through Virtual Chassis, where up to 10 units operate as a single logical device.

The 24 access ports are backed by four fixed 40GbE QSFP+ ports used for Virtual Chassis interconnect, and an optional 4-port 1/10GbE SFP+ uplink module provides links to aggregation or core layers. Switching capacity is 224 Gbps unidirectional and 448 Gbps bidirectional, with 333 Mpps of wire-speed L2/L3 throughput and a 320 Gbps Virtual Chassis backplane. This SKU is the 350 W AC variant with front-to-back airflow (AFO), a 1U chassis with two field-replaceable fans, and a PoE budget of 0 W. It ships with the base Junos feature set covering L2 and basic L3, with Enhanced and Advanced Feature Licences or Flex subscriptions available as upgrades.

The optional uplink module accepts GbE SFP, 10GbE SFP+ and 40GbE QSFP+ optics and DAC cables. Mounting options include the EX-RMK rack-mount kit, the EX-4PST-RMK 4-post kit and the EX-WMK wall-mount kit.

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

Features

- Virtual Chassis technology managing up to 10 EX4300 or EX4600 switches as one logical device
- Full Layer 2 and Layer 3 switching feature set
- Redundant hot-swappable power supply option and field-replaceable fans
- Graceful Routing Engine Switchover, nonstop routing and nonstop bridging in Virtual Chassis
- EVPN-VXLAN campus fabric support
- Juniper Mist Wired Assurance cloud management with Flex Advanced and Premium subscriptions
- Security features including DHCP snooping, dynamic ARP inspection, IP source guard, MAC limiting and captive portal
- Can integrate with QFX5100 switches in a single stack or Virtual Chassis

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: 24 x 10/100/1000BASE-T
- PoE/PoE+ ports: 0
- PoE budget: 0 W
- Fixed 40GbE ports: 4 x QSFP+ (Virtual Chassis capable)
- Optional uplink module: 4-port 1/10GbE SFP+
- Power supply: 350 W AC, AFO front-to-back airflow
- Power input: autosensing 100-120 V / 200-240 V AC
- Switching capacity: 224 Gbps unidirectional / 448 Gbps bidirectional
- L2/L3 throughput: 333 Mpps wire speed (64-byte)
- Virtual Chassis backplane: 320 Gbps, up to 10 members
- Switching engine mode: store and forward
- CPU: 1.5 GHz dual-core PowerPC
- DRAM: 2 GB with ECC
- Storage: 2 GB
- MAC addresses: 64,000 per system
- VLANs supported: 4093
- LAGs supported: 128, up to 16 ports per LAG
- Jumbo frames: 9216 bytes
- IPv4 unicast routes in hardware: 16,000 prefixes, 32,000 host routes
- Dimensions (W x H x D): 44.1 x 4.37 x 41.6 cm
- Weight (no PSU or fan modules): 5.9 kg
- Acoustic noise: 38.5 dBA
- Operating temperature: 0 to 45 C
- Cooling: 2 field-replaceable fans
- Form factor: 1U rack-mount

FAQs

Q: Does the EX4300-24T need a licence?
A: It runs the base Junos feature set with L2 and basic L3 functions. Optional upgrades are the perpetual Enhanced Feature License (EX4300-24-EFL) and Advanced Feature License (EX4300-24-AFL), or Flex subscriptions for 24-port switches (S-EX-A-C2-3/5 Advanced, S-EX-P-C2-3/5 Premium).

Q: Does this switch provide PoE?
A: No. The EX4300-24T is a non-PoE model with a PoE budget of 0 W. PoE variants are separate EX4300 SKUs.

Q: Which uplink options does it support?
A: The four fixed QSFP+ ports are used for Virtual Chassis. An optional 4-port 1/10GbE SFP+ uplink module adds pluggable optics supporting GbE SFP (SX/LX) and 10GbE SFP+ (SR, USR, LR, ER, LRM, DAC).

Q: How many switches can be combined in a Virtual Chassis?
A: Up to 10 EX4300 and/or EX4600 switches can form a single Virtual Chassis over a 320 Gbps backplane, and it can also be mixed with QFX5100 switches. The QSFP+ DAC cables for the interconnect are ordered separately.

Q: What is the airflow direction and power supply on this SKU?
A: This SKU has a 350 W AC power supply with front-to-back airflow (AFO). A second power supply can be added for redundancy.

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