• Juniper EX4300-48T-AFI switch with vibrant pink glossy fruit sticker
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Juniper

Juniper EX4300-48T-AFI | EX4300 48-Port Gigabit Switch, 350W AC, AFI Airflow

EX4300-48T-AFI

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Description

The EX4300-48T-AFI is a fixed-configuration 48-port 10/100/1000BASE-T access switch from the Juniper EX4300 line. It runs Junos OS and suits campus and data centre access deployments, as well as small aggregation or core roles in a Virtual Chassis. The AFI variant uses back-to-front airflow, which suits racks where cooling enters at the rear.

This SKU has 48 non-PoE Gigabit access ports and four fixed 40GbE QSFP+ ports, which also serve as Virtual Chassis ports. An optional 4-port 1GbE/10GbE SFP+ uplink module adds 10GbE SFP+ uplinks. Switching capacity is 248 Gbps unidirectional (496 Gbps bidirectional) with 369 Mpps wire-speed Layer 2 and Layer 3 throughput. It is powered by a 350 W AC supply, with a second slot for load-sharing redundancy, and has two field-replaceable fans. Standard-tier Junos features ship with the OS image, and Enhanced or Advanced feature licences unlock further routing capability.

Up to 10 units can be joined in a Virtual Chassis over a 320 Gbps backplane, and it can be combined with QFX5100 switches. The optional uplink module accepts SFP and SFP+ optics, and the QSFP+ ports support SR optics and DAC cables.

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

Features

- Virtual Chassis: up to 10 EX4300 units managed as one logical device
- Can be combined with QFX5100 switches in a Virtual Chassis
- Hot-swappable internal power supplies and field-replaceable fans
- Modular Junos OS, consistent with Juniper chassis systems
- Layer 2 and Layer 3 features including RIPv1/v2, OSPF, BGP, IS-IS, VRRP and VRF-Lite
- Security features including 802.1X, DHCP snooping, dynamic ARP inspection and IP source guard
- Onboarding and management through Juniper Mist Cloud with Wired Assurance
- Supports GbE SFP, 10GbE SFP+ and 40GbE QSFP+ optics and DAC

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: 48 x 10/100/1000BASE-T
- PoE: none (0 W budget)
- Fixed uplinks: 4 x 40GbE QSFP+ (Virtual Chassis capable)
- Optional uplink module: 4-port 1GbE/10GbE SFP+
- Power supply: 350 W AC, autosensing 100-120 V / 200-240 V
- Airflow: AFI (back-to-front)
- Switching capacity: 248 Gbps unidirectional / 496 Gbps bidirectional
- Throughput: 369 Mpps Layer 2/Layer 3 wire speed
- Virtual Chassis backplane: 320 Gbps, up to 10 members
- DRAM: 2 GB with ECC
- Storage: 2 GB
- CPU: 1.5 GHz dual-core PowerPC
- MAC addresses: up to 64,000
- VLANs: 4093
- Jumbo frames: 9216 bytes
- IPv4 unicast routes in hardware: 16,000 prefixes / 32,000 host routes
- IPv6 unicast routes in hardware: 4000 prefixes / 15,000 host routes
- Form factor: 1U rack-mount, 2 field-replaceable fans
- Dimensions (W x H x D): 44.1 x 4.37 x 41.6 cm
- Weight: 5.9 kg without PSU or fan modules
- Operating temperature: 0 to 35 C (AFI models)
- Acoustic noise: 38.9 dBA

FAQs

Q: Does this switch need a licence?
A: Standard-tier Junos features ship with the OS image. Additional features are unlocked with licences such as EX4300-48-EFL (Enhanced) or EX4300-48-AFL (Advanced). OSPF and BGP routing needs an Enhanced licence.

Q: Does it supply PoE?
A: No. This model has a PoE budget of 0 W and is not intended to power PoE devices.

Q: How do I get 10G SFP+ uplinks?
A: Add the optional 4-port 1GbE/10GbE SFP+ uplink module, which supports SFP (SX, LX) and SFP+ (SR, USR, LR, ER, LRM, DAC) optics. The four fixed ports are 40GbE QSFP+.

Q: What does AFI airflow mean?
A: AFI means back-to-front airflow, with air drawn in at the rear and exhausted at the port side. Operating temperature for AFI models is 0 to 35 C.

Q: Can it be stacked with other switches?
A: Yes. Up to 10 EX4300 units can form a Virtual Chassis over the 40GbE QSFP+ ports, with a 320 Gbps backplane. It can also be mixed with QFX5100 switches.

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