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Juniper Networks MX304
Delivers Massive Scale and Efficiency

Juniper Networks MX304

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Service providers and cloud operators are making infrastructure investments today that pave the way for digital cohesion, enhancing the user experience while supporting emerging market trends with mobility, Internet of Things (IoT), and the continued growth of cloud networking. At the same time, these providers and operators are building out their networks to ensure performance, efficiency, and agility at cloud-era scale. To achieve these business goals and succeed in their respective hyper-competitive markets, service providers and cloud operators need software-centric edge solutions that satisfy current demand while offering investment protecting evolution to emerging technologies and growth.

Realizing this edge vision requires service-oriented edge platforms that offer the density and throughput needed to accommodate anticipated traffic growth driven by ubiquitous video content, media-rich business services, and emerging technology trends like IoT, connected vehicles, and smart cities.

Juniper Networks® MX304 Universal Routing Platform1 is a cloud-era platform that cost effectively addresses the evolutionary edge and metro Ethernet needs of service providers, mobile operators, web-scale operators, and multiple-service operators (MSOs). Offering ultra-high-density 10GbE, 25GbE, 40GbE, 50GbE, 100GbE, and 400GbE connectivity in a space- and power-optimized package, the MX304 delivers 4.8 Tbps of throughput in just two rack units (RU), providing unmatched edge router density and performance while consuming just 0.3 W/Gb of throughput.

Powered by the same programmable Junos® Trio chipset and Junos operating system that powers the entire MX Series Universal Routing Platforms portfolio, the MX304 leverages nearly two decades of Juniper R&D investments and innovations that have transformed the economics of networking. Key features include a comprehensive suite of advanced automation and telemetry capabilities that serve as the foundation for future self-driving networks, as well as line-rate 400GbE Media Access Control Security (MACsec) encryption and integrated advanced timing. By combining service centricity, high throughput, and density with space and power efficiency, the MX304 helps network operators overcome the challenges of a hyper-connected world and profitably deliver the widest variety of services and applications.

Key Features

  • 4.8 Tbps throughput
  • Power & space efficiency - 2 RU
  • Density - 96 x 10/25 GbE, 48 x 40/50/100, 12 x 400 GbE
  • Rich multiservice edge, timing features

Product Overview

Juniper Networks MX Series Universal Routing Platforms provide world-class technology and innovative architectures that enable service providers, cloud providers, and large enterprises to quickly react to changing market conditions in the cloud era, accelerating service delivery.

The MX304, an integral part of this family, offers massive scale and efficiency for space- and power-constrained environments. By redefining per-rack-unit economics, the MX304 helps customers do more with less while simplifying network design, reducing OpEx, and enabling profitable delivery of business, residential, mobile, cable, data center, and cloud services-all while seamlessly supporting traditional and emerging network architectures.

Features and Benefits:

Industry-Leading Port Density

The MX304 is a full-featured single-chassis edge router that offers high port density in a compact form factor

Interface Per MIC Port Density Per Chassis Port Density
10GbE 32 96
25GbE 32 96
40GbE 8 24
50GbE 32 96
100GbE 16 48
400GbE 4 12

Unmatched Network Availability

A comprehensive set of hardware and software features enables the MX304 to deliver the highest levels of network availability for a 2 RU edge router. The MX304 supports 1+1 control plane redundancy and 1+1 power supply module redundancy. From a software standpoint, Junos OS runs each program independently in its own protected memory space, ensuring that individual processes do not interfere with one another.

Excellent Power Design and Efficiency

The MX304 offers excellent, industry-leading power design and efficiency, consuming just 0.3 W/Gb to ensure proper chassis operation under all conditions-critical when considering next-generation network elements. The MX304 monitors power and temperature for each chassis component, shutting down interfaces and components when power or temperature thresholds are exceeded.

Junos Telemetry Interface

The programmable Junos Trio 6 chipset provides the power to monitor and collect data at the component level. The chipset uses the Junos Telemetry Interface to stream this data in a scalable manner to monitoring, analytics, and performance management applications, as well as to Path Computation Elements (PCEs) such as Juniper Networks Paragon Pathfinder.

Integrated Timing

MX Series routers support highly scalable and reliable hardware-based timing that meets the strictest LTE requirements, including Synchronous Ethernet for frequency and the Precision Time Protocol (PTP) for frequency and phase synchronization. Synchronous Ethernet and PTP can be combined in a "hybrid" mode to achieve the highest level of frequency (10 ppb) and phase accuracy.


Physical Specifications

  • Physical dimensions (HxWxD): 3.5 x 17.3 x 24 in, (8.89 x 44 x 61 cm)
  • Airflow: Front to back
  • Operating temperatures: 32° to 115° F (0° to 46° C) at sea level
  • Number of fan trays: 3
  • Maximum weight (approximate): 66.1 lbs (30 kg) (2 x RE configuration)
  • System mounting: 2/4-post rack mounting
  • Rack units: 2

Applications and Use Cases

Business Edge

The MX304 offers the 10GbE, 25GbE, 40GbE, 50GbE, 100GbE, and 400GbE interfaces that large enterprises and service providers need, as well as a comprehensive VPN toolkit to support feature-rich, standards-based, and secure internetworking for innovative business services. In addition to basic L2/L3 VPN and virtual private LAN service (VPLS) support, the MX304 offers enhanced VPN services such as quality-of-service (QoS)-prioritized VPN traffic for voice and video.

Metro Ethernet

The MX304 provides outstanding support for metro and aggregation networks by offering a full suite of routing and switching features, allowing network operators to choose a deployment model that best suits their business and technical needs and goals. The MX304 can be deployed as an IP/MPLS VPN edge router, VPLS router, MPLS label-switching router (LSR), or as a Layer 2 Ethernet switch or Layer 3 IP router.

Data Center

The MX304 can be deployed as a data center gateway router and for data center interconnection. With high-density 10GbE, 25GbE, 40GbE, 50GbE, 100GbE, and 400GbE interfaces, and key features such as L2/L3 VPN, dynamic tunnels using MPLS-over-GRE, Virtual Extensible LAN (VXLAN) encapsulation, and generic routing encapsulation (GRE) support, the MX304 offers a full suite of routing and switching features.

IP Peering

The power-optimized, compact 2 RU MX304 is ideal for collocation facilities that charge based on provisioned power and space. Offering high control plane scale, the MX304 supports IP peering and route reflection capabilities that support inline flow monitoring, segment routing, BGP, and GRE, among other features.


Download the Juniper MX304 Data Sheet (PDF).

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