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Junos OS : Juniper Network Operating System

Junos operating system runs routing, switching, and security over the Juniper Networks high-performance network infrastructure.

Open Source Management Platform
With the rapid emergence of cloud applications, network operators face increasing challenges in building and managing high-performance, highly available, and secure networks. Multiple open source initiatives, such as SONiC, have emerged to provide a unified architecture to manage and control all hardware elements in the network.

Native Junos integration with SONiC and open source management platforms serve as a concrete proof point of open programmability, while still offering the rich routing and telemetry innovations that Juniper has to offer.


Flexible Deployment Model
Advances in merchant silicon and white boxes tailored for critical functions such as Network Functions Virtualization (NFV), SD-WAN, and vCPE have enabled a vast ecosystem of network functions on demand. Service providers and enterprises can now optimize only the network elements that will best help them realize their business and operational objectives.

Complete disaggregation of the Junos OS provides the ability for Junos OS to run on Juniper hardware, third-party hardware, and on containers in the cloud. It also enables an open ecosystem of cloud-ready networking applications, giving operators ultimate choice and flexibility while allowing faster innovation, independent of the underlying hardware.


Junos Node Slicing
Junos OS supports the convergence of multiple concurrent network functions on the same physical infrastructure through Junos Node Slicing. This capability allows service providers to optimize their infrastructures while offering differentiated services on a single chassis. By decoupling network software from the underlying infrastructure, Junos Node Slicing accelerates service deployment, reduces capital outlay, and improves operational efficiency.

Overview

Innovatively designed for simplicity, Junos OS is the single operating system that powers Juniper’s broad portfolio of physical and virtual networking and security products. Built for reliability, security, and flexibility, it runs some of the world’s most sophisticated network deployments, giving operators a competitive advantage over those who run other network operating systems.

Junos OS automates network operations with streamlined precision, furthers operational efficiency, and frees up valuable time and resources for top-line growth opportunities.


Junos OS for the Cloud
Junos OS for the cloud provides a flexible, disaggregated consumption model for network applications. Lightweight, feature-packed, standalone Junos OS is delivered in a Docker container that runs on Linux, allowing you to modularize networking applications and distribute them across a virtual environment. Its open APIs enable third-party application integration. By packaging Junos applications as a Docker container, service providers, cloud operators, and enterprises can deploy Junos container applications in server-based environments to address their unique requirements.


Junos OS Automation
Junos OS is architected with automation, programmability, and DevOps in mind. It provides rich APIs, a command library, scripting support, programming, and integration with popular automation and orchestration frameworks. Built to be open, Junos works with industry standards such as Representational State Transfer (REST) APIs, NETCONF, and YANG. Its streaming-telemetry infrastructure delivers device, system, and network data in real time via multiple data export models such as OpenConfig and gRPC.


Several capabilities support Junos OS automation.


  • Streaming Telemetry and Junos Telemetry Interface (JTI). JTI provides real-time data access through streaming telemetry. Using a push model approach, it’s more efficient, extensible, and scalable than the SNMP pull model. JTI support for industry standards such as OpenConfig and gRPC simplifies integration with your operations environment.


  • Open APIs. Junos OS REST API interface enables you to securely connect to Junos OS devices, execute remote procedure calls, and use a REST API Explorer GUI. In addition to programmability enabled by NETCONF and YANG, Junos supports Path Computation Element Protocol (PCEP) to install, manipulate, and delete network device configurations.


  • Junos Extension Toolkit (JET). JET provides a modern, programmatic interface for developing applications and simplifying the automation of operational, configuration, and management tasks. It offers a rich set of open and customizable APIs for control, management, and data planes.

Junos OS Advantages

One OS Network-wide

Open and Programmable Automation

Open and Programmable Automation

Reduces the time and effort required to plan, deploy, and operate network infrastructure.

Open and Programmable Automation

Open and Programmable Automation

Open and Programmable Automation

Enables a DevOps approach that simplifies complex network operations and improves service agility.

Disaggregation

Open and Programmable Automation

Disaggregation

Extends traditional disaggregation by creating a flexible consumption model for network applications.

Convergence

Simple Routing Policy Management

Disaggregation

Combines multiple concurrent network functions on a single chassis using Junos Node Slicing to optimize network infrastructure and accelerate service deployment.

High Availability

Simple Routing Policy Management

Simple Routing Policy Management

Makes the insertion of line cards and the subsequent network OS upgrade a non-service impact event.

Simple Routing Policy Management

Simple Routing Policy Management

Simple Routing Policy Management

Supports fine-grained network traffic controls, while separate control, management, and data planes increase reliability and security.

Meaningful Configuration Hierarchies

Meaningful Configuration Hierarchies

Meaningful Configuration Hierarchies

Combined with annotations, commit check, and commit and rollback features, exemplifies ease of use and operational agility.

Modular Software Architecture

Meaningful Configuration Hierarchies

Meaningful Configuration Hierarchies

Provides highly scalable software that keeps pace with evolving requirements.

Junos Evolved

Overview

Cloud providers understand that operating a flexible, cost-effective network requires simplified operations across a highly scalable infrastructure. Junos Evolved delivers just that. It’s a unified, end-to-end network operating system that provides reliability, agility, and open programmability for successful cloud-scale deployments.


Junos Evolved  builds on the strengths of the Junos to simplify network operations with a highly scalable unified end-to-end network OS while providing the reliability, quality, agility, visibility, open programmability and simplicity to facilitate cloud operator success with a flexible and cost-effective network infrastructure at cloud scale.

With a consistent Junos experience, along with industry-leading routing and management capabilities, the disaggregated JUNOS EVOLVED (Juniper's cloud-optimized, disaggregated) network operating system (NOS) provides:  


  • Cloud-optimized scalability and microservices architecture with a centralized database to work as a compute cloud. Uses all compute resources on network equipment including routing engines, line cards, and more to provide increased scale and resiliency while reducing hardware costs.


  • High quality and reliability by design to greatly reduce fault. Uses lean profiles for better efficiency, implementing only the features required in cloud-scale deployments. Delivers better visibility with streaming events and telemetry for faster problem discovery and service restoration.


  • High feature velocity using community tools for faster onboarding; smooth, hitless upgrades that accelerate feature adoption; and enhanced debuggability streamlining qualification and deployment. Uses a modular architecture for greater flexibility and agility with composable pieces.


  • Open programmability using a Linux-native system and tools for easy integration with third-party applications and hardware. Extensible to easily create custom functions and a developer-friendly platform with a short learning curve. With all states and statistics modeled in a centralized database, third-party applications also have easy access to Juniper’s deep telemetry and status.


  • Simplicity and operational consistency, minimizingthe effort required to implement, maintain, and customize the end-to-end solution. Provides versatility to create the solution that best fits your cloud-scale deployments through simple third-party application integration and the ability to implement the components required for specific use cases.

JUNOS EVOLVED Features

Scalable and Reliable Architecture

Efficiently uses all compute resources on network elements to distribute workload and maximize performance. Enables fault isolation between components with the ability to restart them with the last state if problems occur and to provide hitless component upgrades.


Open Programmability

Powerful programmability and customization through a transparent interface enables flexibility and rapid user innovation to augment software capabilities. Simple to integrate with the control, management, and data planes through Juniper APIs, providing native integration with open source initiatives and automation frameworks to reduce errors and operating costs.


One Junos Experience

Common API and CLI provides a single end-to-end experience across all versions of Junos, simplifying operations and reducing training costs. Extremely manageable with deep telemetry and analytics easily accessible by any application. Exploiting this data, Juniper, open source, and third-party applications can provide proactive management with increased visibility and faster fault isolation

Evolving JUNOS OS For The Future

The Junos OS architecture and infrastructure evolve with changing business and industry challenges and new technology trends. The scope of network automation may first appear daunting. 


As such, it would be helpful to think of automation as a journey, and to break this journey down into discrete, manageable phases.


In this white paper, learn about the evolution of Junos OS, including its:


  • Agility to adapt to new business models.
  • Continuous support for increased scale, availability, programmability, automation, and security.
  • Need for deeper, more scalable and flexible network insights.


 View a demonstration of an implementation of a standard Linux application on Junos Evolved. 

Junos OS for Future

Benefits Of State Distribution In Junos Evolved

State distribution is the central system that Junos Evolved is built upon as it is the central conduit for all information sharing. 

SONiC Operating System

Juniper’s Product Portfolio With SONiC

The disaggregated SONiC operating system offers cloud providers the ability to implement best-of-breed technology with a single OS for reduced operational costs and automated resiliency. It delivers greater flexibility to implement both vendor-supported and open source applications to meet your cloud-scale business needs.
Juniper’s SONiC implementation combines the the power of our hardware and routing technology with the flexibility, resiliency, and cost savings of SONiC’s open and disaggregated architecture. Juniper switching platforms with SONiC can plug seamlessly into a cloud provider’s unified SONiC network infrastructure.


SONiC Features: 


Unified OS

Simplifies operations with reduced training and operational costs. Provides a single OS across the cloud data center on dedicated switches and routers as well as on servers performing switching and routing functionality. Eliminates duplication and reduces failures with a unified structure for easy control of all network hardware.


Open Architecture

Open, disaggregated, containerized architecture enables increased business flexibility with the ability to implement new features more quickly without having to wait for a large software release. Easy implementation and upgrades through a hitless upgrade process. Open source and vendor-developed components (such as Juniper’s containerized routing engine) align with business and technical requirements.


Industry-Leading Routing Technology

Easily plugs into SONiC as a containerized solution to provide trusted, feature-rich routing across your infrastructure, regardless of the hardware platform SONiC is running on. Industry-first disaggregated routing stack extends operational efficiency with a high-quality, scalable, high-performance routing solution.


Juniper Switch Support

Best-of-breed switching platforms in a unified infrastructure run the SONiC OS for simplified operations. QFX Series Switches are currently supported.

Use Case: Open Networking:

SONiC on the Juniper PTX10008 :


Juniper has been investing in SONiC for years and already supports SONiC on QFX-series switches. This video not only presents SONiC on PTX-series routers by discussing hardware and architecture, but it also provides a tour of the PTX10008 and includes a demo of line card removal and insertion.



Use Case: MACsec & MPLS On SONiC

Whether running on Juniper hardware or not, you can also easily integrate Juniper’s deployment-hardened routing stack into SONiC using container technology.

Open Networking

In the cloud era, the highest quality experiences are provided through disaggregated solutions with open networking.


Open Automation
Automation requires the underlying software to be open and programmable. Juniper’s open networking solutions provide rich telemetry and are highly programmable through standard APIs. They enable full and open automation using Juniper’s tools or third-party offerings.


Flexible Operations
Disaggregation enables deployment flexibility by allowing cloud providers to mix and match hardware under a single operating system. Juniper’s industry-leading routing stack streamlines operational efficiency across the infrastructure, whether on Junos Evolved, SONiC, whitebox, or a Linux server.


Reliable Infrastructure
By default, a microservices architecture is designed to provide high reliability. It allows fault isolation between components and the ability to restart them with the last state if problems occur. A microservices-based architecture also enables hitless upgrades for individual components without impacting services.

Featured Products

Junos Evolved: Cloud-optimized network OS and microservices architecture delivering resiliency, feature velocity, and programmability.


Junos Evolved Network OS extends traditional disaggregation by creating a flexible consumption model for network operations. A cloud-optimized, microservices-based operating system with a deployment-hardened routing stack, Junos Evolved reduces the time and effort you need to plan, deploy, and operate your cloud infrastructure.Junos Evolved improves openness, scalability, reliability, and simplicity on Juniper and whitebox switches and routers. Juniper’s fully featured routing stack can be implemented on any Linux platform, acting as a forwarding plane, including servers and whitebox switches and routers.


Sonic: Juniper SONiC implementations enable high-performance, end-to-end deployments at scale, including spine and WAN core.

Juniper’s support for SONiC is another step on our path to fuel the disaggregation movement. The disaggregated SONiC operating system offers cloud providers the ability to implement best-of-breed technology with a single OS for reduced operational costs, automated resiliency, and greater flexibility.


cRPD: Enables cloud providers to leverage cloud economics with containerized, deployment-hardened routing functions.

Additionally, cloud providers can take advantage of our routing stack by using  Junos containerized routing protocol daemon (cRPD), which is agnostic toward the underlying network operating system, whether Linux or SONiC.

Juniper Open Networking:Use Cases/Solutions

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Running A 3rd Party Application On Junos Evolved – Example Using OpenR

Network Disaggregation: More Than Just Hardware And Software

At Juniper Networks, disaggregation is both the strategic thrust behind a lot of our efforts and an engineering principle that underscores virtually every architectural decision we make. It is at once an explicit part of our roadmap and an implicit directive to our engineering teams.

And, as a core part of what we build and how we build it, disaggregation plays a key role in our broader corporate strategies around cloud, multicloud, and distributed and edge cloud.


The development of Junos has been a 20+ year journey for Juniper, and we're continuing to iterate and modernize how we build systems.This demonstration shows the implementation of a 3rd party application on Junos Evolved, specifically running OpenR in a container on a Junos Evolved system.

Disaggregation:It is Simply Sound Engineering

Advanced Open Networking With Juniper

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