The Juniper Networks EX3300-48T Ethernet Switch is a compact, high-performance Layer 2/Layer 3 access switch designed for enterprise campus networks, branch offices, and entry-level data center deployments. With a 1RU form factor, this switch delivers reliable connectivity, scalability, and advanced features for converged data, voice, and video environments.
Equipped with 48 × 10/100/1000BASE-T RJ45 ports and 4 × 1/10GbE SFP+ uplink ports, the EX3300-48T provides flexible connectivity for end devices and high-speed uplinks to aggregation or core layers. With a switching capacity of 176 Gbps and a forwarding rate of 130 Mpps, it ensures consistent performance for everyday enterprise workloads.
A standout feature of the EX3300 Series is Virtual Chassis technology, which allows up to 10 switches to be interconnected and managed as a single logical device. This simplifies network management, reduces operational complexity, and enables a scalable “pay-as-you-grow” architecture. The 10GbE uplink ports can also function as Virtual Chassis Ports (VCPs), providing high-speed stacking capabilities.
The EX3300-48T supports a comprehensive set of Layer 2 and Layer 3 features, including RIP, OSPF, and BGP (with appropriate licensing), making it suitable for both access and distribution roles. It also includes advanced QoS and LLDP-MED support, ensuring optimized performance for VoIP and video conferencing applications.
Designed for high availability, the switch supports Graceful Routing Engine Switchover (GRES) and Nonstop Routing (NSR) when deployed in a Virtual Chassis configuration, ensuring uninterrupted network operations. It also offers external redundant power supply (RPS) support for enhanced reliability.
With its combination of scalability, flexibility, and carrier-grade features, the Juniper EX3300-48T is an ideal solution for organizations seeking a reliable and cost-effective switch for modern enterprise networking environments.
Product Specifications – Juniper Networks EX3300-48T 48-Port Gigabit Ethernet Switch with 10GbE Uplinks
| Specification |
Details |
| Product Name |
Juniper Networks EX3300-48T Ethernet Switch |
| Manufacturer |
Juniper Networks |
| Part Number |
EX3300-48T |
| Product Type |
Fixed-Configuration Ethernet Switch |
| Switch Series |
Juniper EX3300 Series |
| Deployment Type |
Enterprise Access, Campus Network, Entry-Level Data Center ToR |
| Form Factor |
1 Rack Unit (1RU) |
| Fixed Ports |
48 × 10/100/1000BASE-T (RJ45) |
| Uplink Ports |
4 × 1GbE/10GbE SFP/SFP+ |
| Switching Capacity |
Up to 176 Gbps |
| Forwarding Rate |
Up to 130 Million Packets per Second (Mpps) |
| Virtual Chassis Support |
Yes (up to 10 switches) |
| Virtual Chassis Ports |
10GbE SFP+ uplinks used as VCPs |
| Operating System |
Junos OS |
| Layer Support |
Layer 2 and Layer 3 switching and routing |
| Routing Protocols |
RIP, OSPF, BGP (with appropriate licensing) |
| Multicast Support |
IGMP, PIM-SM |
| QoS Support |
Advanced QoS with VoIP prioritization |
| Converged Network Support |
LLDP-MED for voice/video deployments |
| Security Features |
ACLs, DHCP Snooping, Dynamic ARP Inspection |
| High Availability Features |
GRES, NSR (in Virtual Chassis configuration) |
| Redundancy |
External Redundant Power Supply (RPS) support |
| Cooling System |
Internal fan modules |
| Airflow Options |
Front-to-Back (standard) or Back-to-Front (AFI) |
| Jumbo Frame Support |
Up to 9,216 bytes |
| Automation Support |
SNMP, CLI, Junos automation tools |
| Power Consumption |
~150–200 W (depending on configuration) |
| Operating Temperature |
0°C to 45°C |
| Storage Temperature |
-40°C to 70°C |
| Rack Mounting |
Standard 19-inch rack |
| Scalability |
Stackable architecture with Virtual Chassis |
| Use Cases |
Enterprise access layer, campus edge, VoIP deployments, SMB networks |
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FAQs:
Q1. Does the EX3300-48T support PoE?
No. The "48T" model is for data only. For Power over Ethernet (PoE+) to support devices like Wireless APs and IP cameras, you would require the EX3300-48P model.
Q2. Can I use the SFP+ ports for 1GbE connections?
Yes. The 4 SFP+ uplink ports are dual-speed and can support either 10GbE SFP+ transceivers or 1GbE SFP transceivers.
Q3. How is the Virtual Chassis connected on this model?
Unlike some higher-end switches with dedicated stacking ports, the EX3300 uses its 10GbE SFP+ uplink ports to form the Virtual Chassis backplane.
Q4. Does it support redundant power supplies?
The EX3300-48T has a single fixed internal power supply. However, it features a rear port to connect to an external Juniper redundant power system (RPS) for power redundancy.
Q5. Is the airflow reversible?
The airflow direction is determined by the specific fan and power supply configuration at the time of purchase (standard Front-to-Back or the AFI model). It is not field-reversible.
