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Juniper Networks: WAN Edge with Session Smart Router

A Juniper Validated Design (JVD)

Introduction to Juniper Validated Designs

Juniper Networks Validated Designs offer comprehensive, end-to-end blueprints for deploying Juniper solutions. Created by expert engineers and rigorously tested, these designs ensure your network meets requirements, reduces the risk of costly mistakes, saves time and money, and optimizes performance.

About This Document

This document details the integration of Juniper WAN edge for Session Smart Routers within a modern software-defined WAN (SD-WAN) environment. It addresses key design considerations for enterprises, offering a solution with sophisticated SD-WAN path selection features. The JVD outlines various integration methods and presents test cases for ensuring proper integration within an example network design, including different topologies and features. Configuration examples using the Juniper Mist™ portal are provided in the appendix.

Solution Benefits

Juniper Mist™ WAN Assurance is a cloud-managed solution designed to optimize and simplify wide area network (WAN) operations. As part of Juniper Mist's AI-Native networking platform, it delivers high performance, tunnel-free forwarding, enhanced AI operations, and automation for WAN management. This solution transforms WAN edges with Juniper's AI-driven SD-WAN, acting as distributed policy enforcement points managed centrally from the cloud. It addresses common challenges in legacy SD-WAN solutions related to security, monitoring, and troubleshooting. Integration with Juniper Mist™ Wired Assurance and Juniper Mist™ Wireless Assurance provides a unified Mist AI™ dashboard for streamlined deployment, monitoring, and troubleshooting across the network.

Use Case and Reference Architecture

This section describes an example of SD-WAN implementation in a typical hub-and-spoke scenario, leveraging various transport technologies. It highlights key design goals, including designing for a hub-and-spoke scenario from the outset, ensuring hub connectivity, and considering network configurations for MPLS, broadband, and LTE connections. The document details five different topologies tested within this JVD, serving as extensions or modifications to a foundational base hub-and-spoke design. These include extended topologies with hub overlay and BGP peering, high-availability hub-and-spoke configurations using Session Smart Router clusters, and full-stack topologies incorporating Juniper EX Series Switches and Juniper Mist Access Points.

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