Description:
The Juniper EX3400 Series is a family of fixed‑configuration, stackable Layer 2/Layer 3 access switches designed for enterprise campus and branch networks that demand high performance, scalability, flexibility, and reliability. These switches deliver wire‑speed switching and routing, support for Power over Ethernet (PoE/PoE+) for connected devices, and Virtual Chassis technology that lets up to 10 switches operate as a single managed system simplifying management and scaling as the network grows.
Specification:
| Specification | EX3400 Series |
|---|---|
| Brand | Juniper Networks |
| Series | EX3400 |
| Switch Type | Managed Stackable Layer 2/Layer 3 Access Switch |
| Form Factor | 1U Rackmount |
| Access Ports | • 24 × 10/100/1000 BASE‑T (24T/24P models)• 48 × 10/100/1000 BASE‑T (48T/48P models) |
| Uplink Ports | 4 × SFP/SFP+ (1/10 GbE) + 2 × QSFP+ (40 GbE) |
| PoE/PoE+ Support | Yes (on P models; up to ~30 W per port) |
| Virtual Chassis Support | Yes – up to 10 switches as a single unit |
| Switching Capacity | •288 Gbps (24‑port models)• 336 Gbps (48‑port models) |
| Forwarding Throughput | •214 Mpps (24‑port models)• 250 Mpps (48‑port models) |
| MAC Address Table | 32,000 entries |
| Jumbo Frames | Up to 9,216 bytes |
| Number of VLANs | Up to 4,096 |
| Routing Entries | IPv4 unicast: ~36,000; IPv6 unicast: 18,000 |
| ARP Entries | 16,000 |
| QoS Queues | 12 per port (8 unicast + 4 multicast) |
| Layer 2 Features | VLAN, RSTP/MSTP, LACP, IGMP/MLD snooping, PVST+ compatibility |
| Layer 3 Features | Static routing, RIP, OSPF, RVI, IPv6 routing |
| Management Interfaces | CLI, SNMP (v1/v2c/v3), Junos OS, Web/REST APIs via Wired Assurance |
| Backplane Speed | Up to ~160 Gbps (80 Gbps on some variants) |
| Operating Temp. | Standard data center: 0–40 °C |
| Dimensions (W×H×D) | 44.1 × 4.37 × 35 cm (17.4×1.7×13.8 in) |
| Stacking | Virtual Chassis interconnect via QSFP+ or SFP+ ports (up to 10 members) |
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