# Juniper EX4000-12P Managed L2/L3 Network Switch with 12 Gigabit Ethernet Ports and PoE Support

**URL:** https://aio.lv/en/product--juniper-ex4000-12p--12587613
**Data updated:** 2026-07-22 04:16 (EEST)
**Category:** Network Switches
**Manufacturer:** JUNIPER
**Manufacturer code:** EX4000-12P
**EAN:** 832938104938
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Juniper EX4000-12P is a managed L2/L3 network switch designed for high-performance connectivity. It features 12 Gigabit Ethernet RJ-45 ports with Power over Ethernet (PoE) support and 10G capability. With a 52 Gbit/s switching capacity and a 32,000 MAC address table, it ensures reliable data transfer. This 1U rack-mountable device supports various IEEE networking standards, making it an ideal solution for professional enterprise network infrastructures.

## Long description

The Juniper EX4000-12P is a high-performance managed L2/L3 network switch engineered to provide reliable connectivity for modern enterprise environments. Featuring 12 Gigabit Ethernet RJ-45 ports with Power over Ethernet (PoE) support and 10G capability, this device is designed to handle demanding network traffic with a switching capacity of 52 Gbit/s. Its compact 1U rack-mountable form factor makes it an efficient solution for branch offices and campus networks requiring robust, cloud-managed infrastructure.
Advantages
This switch offers significant operational benefits through its integration with Juniper Mist Wired Assurance and Marvis Virtual Network Assistant, which utilize AI-driven insights to simplify management and troubleshooting. The device supports Virtual Chassis technology, allowing up to six units to be managed as a single logical entity, which enhances scalability and availability. With support for IEEE 802.3bt standards, it delivers up to 60W of power per port, ensuring that high-demand devices like Wi-Fi 6E access points and surveillance cameras remain powered even during switch reboots thanks to its Fast and Perpetual PoE capabilities. The use of the consistent Junos operating system ensures a stable, modular, and secure environment across the entire network.
Suitable for
Enterprise branch and remote office network deployments
Powering IoT devices, IP cameras, and VoIP phones via PoE
High-speed connectivity for Wi-Fi 6E and Wi-Fi 7 access points
Campus network infrastructures requiring L2/L3 management
Scalable environments utilizing Virtual Chassis stacking
The Juniper EX4000-12P may not be the most cost-effective solution for small home offices or basic residential networks that do not require advanced L2/L3 management features or enterprise-grade cloud orchestration. Additionally, environments that do not utilize PoE-powered devices may find the specialized power delivery features of this model unnecessary for their specific requirements.
Key specifications
Switch Type: Managed L2/L3
Ethernet Ports: 12 x Gigabit Ethernet (10/100/1000) RJ-45
10G Support: Yes
Switching Capacity: 52 Gbit/s
MAC Address Table: 32,000 entries
Form Factor: 1U Rack-mountable
PoE Support: IEEE 802.3af/at/bt
Weight: 3.12 kg
To begin using the Juniper EX4000-12P, mount the device in a standard 19-inch server rack using the provided hardware. Connect the switch to your network core or uplink devices using the 10G SFP+ ports. Power on the unit and access the command-line interface via the RJ-45 console port or utilize the cloud-based Juniper Mist dashboard for initial provisioning. Configure your VLANs, security policies, and PoE settings according to your network requirements through the Junos OS interface.
What to consider before purchase
Ensure your rack space supports a 1U form factor device.
Verify that your power budget requirements align with the switch's PoE capabilities.
Consider the licensing tier (Standard, Advanced, or Premium) required for your specific feature set.
Check compatibility with existing Juniper Virtual Chassis configurations if expanding an existing network.
Usage recommendations: For optimal performance and visibility, it is highly recommended to integrate the switch with the Juniper Mist cloud platform. Regularly update the Junos OS to the latest stable release to ensure continued security and access to the newest feature sets. When deploying in a Virtual Chassis, use the dedicated 10G SFP+ ports to maintain high-speed inter-switch communication.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| Console port | RJ-45 |
| Basic switching RJ-45 Ethernet ports type | Gigabit Ethernet (10/100/1000) |
| Basic switching RJ-45 Ethernet ports quantity | 12 |
| SFP+ module slots quantity | 4 |
| Uplink ports quantity | 2 |

### Network

| Feature | Value |
|---|---|
| Networking standards | IEEE 802.1D, IEEE 802.1Q, IEEE 802.1ab, IEEE 802.1ak, IEEE 802.1p, IEEE 802.1s, IEEE 802.1w, IEEE 802.1x, IEEE 802.3, IEEE 802.3ab, IEEE 802.3ad, IEEE 802.3ae, IEEE 802.3af, IEEE 802.3ah, IEEE 802.3at, IEEE 802.3bt, IEEE 802.3bz, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z |
| Flow control support | Yes |
| Port mirroring | Yes |
| Link aggregation | Yes |
| IP routing | Yes |
| Ethernet LAN data rates | 10, 100, 1000 |
| Auto MDI/MDI-X | Yes |
| Number of VLANs | 1020 |
| Spanning tree protocol | Yes |
| VLAN support | Yes |
| 10G support | Yes |
| Copper ethernet cabling technology | 10BASE-T, 100BASE-T, 1000BASE-T, 1000BASE-X |
| MAC address auto-learning supported | Yes |
| Ethernet Ring Protection Switching (ERPS) | Yes |
| Address Resolution Protocol (ARP) entries (max) | 4096 |
| Policy-based routing | Yes |
| Neighbor Discovery Protocol (ND) entries | 3000 |
| Virtual LAN features | Port-based VLAN, Private VLAN, Tagged VLAN, Voice VLAN |

### Data transmission

| Feature | Value |
|---|---|
| MAC address table | 32000 entries |
| Switching capacity | 52 Gbit/s |
| Jumbo frames support | Yes |
| Store-and-forward | Yes |
| Throughput | 77 Mpps |
| Jumbo frames | 9216 |
| Static route | Yes |

### Multicast features

| Feature | Value |
|---|---|
| Multicast support | Yes |
| Multicast Listener Discovery (MLD) snooping | Yes |
| IPv4 multicast entries | 3200 |
| IPv6 multicast entries | 1650 |

### Performance

| Feature | Value |
|---|---|
| Internal memory | 4000 MB |
| Memory type | DRAM |
| Fanless | Yes |
| sFlow | Yes |
| List of RFCs | RFC 783 TFTP RFC 791 IP RFC 792 ICMP RFC 793 TCP RFC 826 ARP RFC 854 Telnet client and server RFC 894 IP over Ethernet RFC 903 RARP RFC 906 TFTP Bootstrap RFC 951, 1542 BootP RFC 1027 Proxy ARP RFC 1058 RIP v1 RFC 1112 IGMP v1 RFC 1122 Host Requirements RFC 1195 Use of OSI IS-IS for Routing in TCP/IP and Dual Environments (TCP/IP transport only) RFC 1256 IPv4 ICMP Router Discovery (IRDP) RFC 1492 TACACS+RFC 1519 CIDR RFC 1587 OSPF NSSA Option RFC 1591 DNS RFC 1812 Requirements for IPv4 Routers RFC 1981 Path MTU Discovery for IPv6 RFC 2030 SNTP, Simple Network Time Protocol RFC 2068 HTTP server RFC 2080 RIPng for IPv6 RFC 2131 BOOTP/DHCP relay agent and DHCP server RFC 2138 RADIUS Authentication RFC 2139 RADIUS Accounting RFC 2154 OSPF w/Digital Signatures (password, MD-5) RFC 2236 IGMP v2 RFC 2267 Network Ingress Filtering RFC 2328 OSPF v2 (edge-mode) RFC 2338 VRRP RFC 2362 PIM-SM (edge-mode) RFC 2370 OSPF Opaque LSA Option RFC 2453 RIP v2 RFC 2460 Internet Protocol, Version 6 (IPv6) Specification RFC 2461 Neighbor Discovery for IP Version 6 (IPv6) RFC 2463 Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification RFC 2464 Transmission of IPv6 Packets over Ethernet Networks RFC 2474 DiffServ Precedence, including 12 queues/port RFC 2475 DiffServ Core and Edge Router Functions RFC 2526 Reserved IPv6 Subnet Anycast Addresses RFC 2597 DiffServ Assured Forwarding (AF) RFC 2598 DiffServ Expedited Forwarding (EF) RFC 2740 OSPF for IPv6 RFC 2925 MIB for Remote Ping, Trace RFC 3176 sFlow RFC 3376 IGMP v3 RFC 3484 Default Address Selection for Internet Protocol Version 6 (IPv6) RFC 3513 Internet Protocol Version 6 (IPv6) Addressing Architecture RFC 3569 draft-ietf-ssm-arch-06.txt PIM-SSM PIM Source Specific Multicast RFC 3579 RADIUS EAP support for 802.1x RFC 6614 RadSec RFC 3618 Multicast Source Discovery Protocol (MSDP) RFC 3623 OSPF Graceful Restart RFC 4213 Basic Transition Mechanisms for IPv6 Hosts and Routers RFC 4291 IPv6 Addressing Architecture RFC 4443 ICMPv6 for the IPv6 Specification RFC 4541 IBMP and MLD snooping services RFC 4552 OSPFv3 Authentication RFC 4861 Neighbor Discovery for IPv6 RFC 4862 IPv6 Stateless Address Autoconfiguration RFC 4915 MT-OSPF RFC 5095 Deprecation of Type 0 Routing Headers RFC 5176 Dynamic Authorization Extensions to RADIUS RFC 5798 VRRPv3 for IPv6 Draft-ietf-bfd-base-05.txt Bidirectional Forwarding Detection Draft-ietf-idr-restart-10.txt Graceful Restart Mechanism Draft-ietf-isis-restart-02 Restart Signaling for IS-IS Draft-ietf-isis-wg-multi-topology-11 Multi Topology (MT) Routing in IS-IS for BGP Internet draft-ietf-isis-ipv6-06.txt, Routing IPv6 with IS-IS LLDP Media Endpoint Discovery (LLDP-MED), ANSI/ TIA-1057, draft 08 PIM-DM Draft IETF PIM Dense Mode draft-ietf-idmrpimdm-05.txt, draft-ietf-pim-dm-new-v2-04.txt |

### Power

| Feature | Value |
|---|---|
| Power source | AC |
| Input current | 3 |
| AC input frequency | 50/60 |
| AC input voltage | 100 - 240 |
| Power consumption (max) | 34 W |

### Power over Ethernet (PoE)

| Feature | Value |
|---|---|
| Power over Ethernet (PoE) | Yes |
| Power over Ethernet plus (PoE+) ports quantity | 12 |
| Total Power over Ethernet (PoE) budget | 240 W |
| Power over Ethernet (PoE) power per port | 30 W |
| Power over Ethernet (PoE) type supported | PoE+ |

### Other features

| Feature | Value |
|---|---|
| Total storage capacity | 8 GB |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 3.12 kg |
| Height | 43.4 mm |
| Width | 264 mm |
| Depth | 253.7 mm |

### Management features

| Feature | Value |
|---|---|
| MIB support | RFC 1155 SMI RFC 1157 SNMPv1 RFC 1212, RFC 1213, RFC 1215 MIB-II, Ethernet-Like MIB and TRAPs RFC 1493 Bridge MIB RFC 1643 Ethernet MIB RFC 1657 BGP-4 MIB RFC 1724 RIPv2 MIB RFC 1850 OSPFv2 MIB RFC 1905 RFC 1907 SNMP v2c, SMIv2 and Revised MIB-II RFC 2011 SNMPv2 for Internet Protocol using SMIv2 RFC 2012 SNMPv2 for transmission control protocol using SMIv2 RFC 2013 SNMPv2 for user datagram protocol suing SMIv2 RFC 2096 IPv4 Forwarding Table MIB RFC 2287 System Application Packages MIB RFC 2570–2575 SNMPv3, user based security, encryption, and authentication RFC 2576 Coexistence between SNMP Version 1, Version 2 and Version 3 RFC 2578 SNMP Structure of Management Information MIB RFC 2579 SNMP Textual Conventions for SMIv2 RFC 2665 Ethernet-like interface MIB RFC 2787 VRRP MIB RFC 2819 RMON MIB RFC 2863 Interface Group MIB RFC 2863 Interface MIB RFC 2922 LLDP MIB RFC 2925 Ping/Traceroute MIB RFC 2932 IPv4 Multicast MIB RFC 3413 SNMP Application MIB RFC 3414 User-based Security model for SNMPv3 RFC 3415 View-based Access Control Model for SNMP RFC 3621 PoE-MIB (PoE switches only) RFC 4188 STP and Extensions MIB RFC 4363 Definitions of Managed Objects for Bridges with Traffic Classes, Multicast Filtering, and VLAN extensions RFC 5643 OSPF v3 MIB support Draft – blumenthal – aes – usm - 08 Draft – reeder - snmpv3 – usm - 3desede -00 Draft-ietf-bfd-mib-02.txt Draft-ietf-idmr-igmp-mib-13 Draft-ietf-idmr-pim-mib-09 Draft-ietf-idr-bgp4-mibv2-02.txt – Enhanced BGP-4 MIB Draft-ietf-isis-wg-mib-07 |
| Switch layer | L2/L3 |
| Quality of Service (QoS) support | Yes |
| System event log | Yes |
| Switch type | Managed |
| ARP inspection | Yes |
| Configuring Location Settings (CLI) | Yes |
| Cloud-managed | Yes |

### Security

| Feature | Value |
|---|---|
| Security algorithms | 802.1x RADIUS, EAP, HTTPS, MD5, PEAP, SNMP, SNMPv2, SNMPv3, SSH-2, TLS, TTLS |
| Access Control List (ACL) | Yes |
| IGMP snooping | Yes |
| Authentication type | AAA, IEEE 802.1x, RADIUS, TACACS+ |
| Password protection | Yes |
| Authentication | MAC-based authentication |
| Persistent MAC Learning (Sticky MAC) | Yes |
| Queue scheduling algorithms | SP, Weighted random early detection (WRED) |
| DHCP features | DHCP client, DHCP relay, DHCP server, DHCP snooping, DHCPv6 snooping |

### Protocols

| Feature | Value |
|---|---|
| Routing protocols | BGP, IS-IS, OSPF, OSPFv3, RIP-1, RIP-2, RIPng |
| Virtual Router Redundancy Protocol (VRRP) | Yes |
| IP Source Guard (IPSG) | Yes |

### Design

| Feature | Value |
|---|---|
| Rack mounting | Yes |
| Form factor | 1U |
| LED indicators | Y |
| Product colour | Grey |
| Reset button | Yes |
| Temperature sensor | Yes |

### Operational conditions

| Feature | Value |
|---|---|
| Operating altitude | 0 - 3048 |
| Operating relative humidity (H-H) | 5 - 90 |
| Storage temperature (T-T) | -40 - 70 |
| Operating temperature (T-T) | 0 - 50 |
| Storage relative humidity (H-H) | 5 - 95 |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | BSMI, Electromagnetic Compatibility (EMC), Federal Communications Commission (FCC), RoHS, UL, VCCI |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All JUNIPER products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized JUNIPER service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: basic switching rj-45 ethernet ports quantity, weight, 10g support, switch type, basic switching rj-45 ethernet ports type, networking standards, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Juniper EX4000-12P Managed L2/L3 Network Switch?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

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