The EX4000 line of Ethernet access switches offer a Cloud-Native, AI-Native economical solution for access layer deployments in branch and remote offices. Both 1 Gbps and 2.5 Gbps with 802.3at and 802.3bt options are available to provide higher-speed options and PoE options, especially when connecting to Wi-Fi 6E and Wi-Fi 7 access points.

As part of the underlying infrastructure for Juniper Mist Wired Assurance, the EX4000 is purpose-built for, and managed by, the cloud. The switches leverage Mist AI to simplify operations and provide better visibility into the experience of connected devices, delivering a simplified, experience-first approach to access layer switching.

The Juniper Networks® EX4000 line of switches offers a Cloud-Native, AI-Native portfolio of access switches ideal for enterprise branch, remote office, and enterprise campus networks. EX4000 switches combine the simplicity of the cloud, the power of Mist AI™, and a robust high-performance hardware foundation to deliver a differentiated approach to access switching in the cloud, mobile, and IoT era. With Juniper® Mist™ Wired Assurance, you can effortlessly onboard, configure, and manage EX4000 switches from the cloud. This simplifies operations, improves visibility, and ensures a optimal experiences for connected devices.

Each EX4000 -8 port, -12 port, -24 port, and 48-port model offers a fixed power supply and 2 x 1GbE/10GbE small form-factor pluggable plus transceiver (SFP+ transceiver) fixed uplink ports. Each EX4000 12-, 24-, and 48-port model also offers an additional 2 x 1GbE/10GbE SFP+ ports to support Virtual Chassis connections, which you can be reconfigure for use as network ports.

EX4000 Multigigabit models offer standards-based 802.3bt for delivering up to 60 watts on any access port. You can configure EX4000 switches to deliver fast PoE, enabling the switches to deliver to connected PoE devices within a few seconds of power being applied to the switches.

Architecture and Key Components

Cloud Management with Juniper Mist Wired Assurance Driven by Mist AI
You can quickly and easily onboard EX4000 switches (Day 0), provision them (Day 1), and manage (Day 2+) them from the cloud with Juniper Mist Wired Assurance, which brings AI-Native automation and insights that optimize experiences for end users and connected devices. The EX4000 provides rich Junos® operating system telemetry data for Mist AI, which helps achieve simpler operations, shorter mean time to repair (MTTR), and streamlined troubleshooting.

In addition to Juniper Mist Wired Assurance, Juniper’s groundbreaking Marvis Virtual Network Assistant, simplifies network operations and streamlines troubleshooting via automatic fixes for Juniper Networks EX Series Switches or recommended actions for external systems.

Virtual Chassis Technology
Juniper’s Virtual Chassis technology allows multiple interconnected switches to operate as a single, logical unit, enabling users to manage all platforms as one virtual device. You can interconnect ip to six EX4000 switches as a Virtual Chassis using 2 x 10GbE SFP+ dedicated front-panel ports. Although configured as Virtual Chassis ports by default, you can also configure the 2 x 10GbE SFP+ ports as network ports. The EX4000 switches can form a Virtual Chassis with any other models within the EX4000 product line.

Chassis-Class Availability
The EX4000 switches deliver high availability (HA) through graceful Routing Engine switchover (GRES), and nonstop bridging and routing when deployed in a Virtual Chassis configuration.

In a Virtual Chassis configuration, each EX4000 switch is capable of functioning as a Routing Engine (RE). When you connect two or more EX4000 switches, all Virtual Chassis member switches share a single control panel. Junos OS automatically initiates an election process to assign a primary (active) and backup (hot-standby) RE. An integrated L2 and L3 GRES feature maintains uninterrupted access to applications, services, and IP communications in the unlikely event of a primary RE failure.

When more than two switches are interconnected in a Virtual Chassis configuration, the remaining switch elements act as line cards and are available to assume the backup RE position should the designated primary RE fail. You can assign primary, backup, and line card priority status can to dictate the order of ascension; this N+1 RE redundancy, coupled with the GRES, nonstop active routing (NSR), and nonstop bridging (NSB) capabilities of Junos OS, assures a smooth transfer of control plane functions following unexpected failures.

The EX4000 implements the same slot/module/port numbering schema as other Juniper chassis-based products when numbering Virtual Chassis ports, providing true chassis-like operations. By using a consistent operating system and a single configuration file, all switches in a Virtual Chassis configuration are treated as a single device, greatly simplifying overall system maintenance and management.

Individually, the EX4000 offers a number of HA features typically associated with modular chassis-based switches. When combined with the field-proven Junos OS and L2/L3 failover capabilities, these features provide the EX4000 with true carrier-class reliability.

PoE/PoE+/PoE++ Power, Perpetual and Fast PoE
The EX4000 delivers PoE to support connected devices, includingphones, surveillance cameras, IoT devices, and 802.11AX/Wi-Fi 6/Wi-Fi 7 access points. It offers a PoE power budget of up to 960W on the EX4000-48MP model, with up to 60W per port based on the IEEE 802.3bt PoE standard.

EX4000 switches support perpetual PoE, which provides uninterrupted power to connected PoE powered devices (PDs) even when the power sourcing equipment switch (PSE) is rebooting. EX4000 switches also support a Fast PoE capability that delivers PoE power to connected endpoints during a switch power-up, even before the switch is fully operational. This is especially beneficial in situations where the endpoint only needs the power and is not necessarily dependent on network connectivity.

Junos Operating System
EX4000 switches run Junos OS, Juniper’s powerful and robust network operating system that powers all Juniper switches, routers, and firewalls. By utilizing a common operating system, Juniper delivers a consistent implementation and operation of control plane features across all products. To maintain that consistency, Junos OS adheres to a highly disciplined development process that uses a single source code and employs a highly available modular architecture to prevent isolated failures from bringing down an entire system. These attributes are fundamental to the core value of the software, enabling all Junos OS-powered products to be updated simultaneously with the same software release. All features are fully regression tested, making each new release a true superset of the previous version.

You can deploy the software with complete confidence that all existing capabilities are maintained and operate in the same way.

Flex Licensing
Juniper Flex licensing offers a common, simple, and flexible licensing model for EX Series access switches, enabling you to purchase features based on your unique network and business needs.

We offer Flex licensing in Standard, Advanced, and Premium tiers. Standard tier features are available with the Junos OS image that ships with EX Series switches. You can unlock additional features with the purchase of a Flex Advanced or Flex Premium license.

The Flex Advanced and Flex Premium licenses for EX Series platforms are class-based, determined by the number of access ports on the switch. Class 1 (C1) switches have 12 ports, Class 2 (C2) switches have 24 ports, and Class 3 (C3) switches have 32 or 48 ports.

EX4000 switches support both subscription and perpetual Flex licenses. We offer subscription licenses for three- and five-year terms. In addition to Junos OS features, the Flex Advanced and Flex Premium subscription licenses include Juniper Mist Wired Assurance. Flex Advanced and Flex Premium subscription licenses also allow portability across the same tier and class of switches, ensuring investment protection.

For a complete list of features supported by the Flex Standard, Advanced, and Premium tiers, or to learn about Junos OS EX Series licenses, please visit: https://www.juniper.net/documentation/us/en/software/license/juniper-licensing-user-guide/topics/concept/licenses-for-ex.html.

Enhanced Limited Lifetime Warranty
The EX4000 includes an enhanced limited lifetime hardware warranty that provides return-to-factory switch replacement for as long as the original purchaser owns the product. The warranty includes lifetime software updates, advanced shipping of spares within one business day, and 24x7 Juniper Networks Technical Assistance Center (JTAC) support for 90 days after the purchase date. Power supplies and fan trays are covered for a period of five years. For complete details, please visit https://support.juniper.net/support/pdf/warranty/enhanced-limited-lifetime-warranty-ex-series.pdf