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White Paper

SESSION SMART ROUTING — HOW IT WORKS

A service-centric fabric with dramatic benefits in terms of simplicity , agility , security , performance , and cost

© 2021 , Juniper Networks , Inc .

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This document is intended to provide a thorough understanding of exactly how the Juniper ® Session Smart™ Router works . It ’ s written by the founding technology and product team , and is meant for a technical audience . With that said , a quick recap of what we do and why it matters will provide helpful context for the “ how ” we ’ ll be focusing on later in this white paper .

Introduction

The story begins with the belief that the network exists to deliver applications and services that businesses need . While legacy network vendors are always happy to sell you another box to get there – for firewalls , load balancing , deep packet inspection , and tunnels – the hardware-centric model their business is built on means more complexity , compromise , and cost for you . This middlebox-driven approach makes it hard to run new services and applications across diverse networks and within the hybrid cloud . It makes it a challenge to support video-intensive workloads , or properly connect today ’ s mobile workforce . And the sheer complexity of it all exposes the business to increasingly sophisticated cyber criminals and the unacceptably high cost of downtime .

Fixing the problem ties back to our second founding observation : That the applications and services running on your network should speak the language of sessions , and that for the most part , your network doesn ’ t . This language gap turns out to be the root cause of so much of what ’ s broken in networking today , and at the most basic level , that ’ s what the Juniper Session Smart Router addresses . Our “ smart ” routers speak the language of sessions , and when they ’ re deployed along the network edge , they enable the network to build a closer working relationship with the applications and services it needs to support . u

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