| Copyright © 2009 Juniper Networks, Inc. |

| Copyright © 2009 Juniper Networks, Inc. | www.juniper.net1


Safe HarborStatements made during all analyst day presentations and question and answer sessions concerning Juniper Networks' business outlook, future financial and operating results, strategic direction, product and technology development and release plans and overall future prospects are forward looking statements that involve a number of uncertainties and risks. Actual results could differ materially from those anticipated in those forward-looking statements as a result of certain factors, including: business and economic conditions generally or in the networking industry; changes in overall technology spending; the network capacity requirements of service providers; changing market requirements; delays in scheduled product availability; the timing of orders and shipments; manufacturing and supply chain constraints variations in the mix of products sold; customer perceptions and acceptance of our products; litigation; and other factors listed in our most recent report on Form 10-Q filed with the SEC. All statements made during these presentations and sessions are made only as of today. Juniper Networks undertakes no obligation to update the information presented during these presentations and sessions in the event facts or circumstances subsequently change after the date of this meeting.

In addition, certain historical Non-GAAP financial information will be presented today. For reconciliation of such measures to comparable GAAP measures, please visit our website at http://www.juniper.net/company/investor_relations/index.html and click on the link entitled “Analyst Day 2009 – Non-GAAP reconciliations”.

http://www.juniper.net/company/investor_relations/index.html


HIGH-PERFORMANCE NETWORKINGJUNIPER’S GROWTH ENGINE

Pradeep SindhuFounder, CTO, and Vice Chairman

Juniper Networks


Agenda

The Power of High-Performance Networking

The Foundation of Juniper’s Technology

The Coming Paradigm Shift

Juniper’s Unique Position


“Connect Everything, Empower Everyone”JUNIPER’S FOUNDING VISION

All information systems on the planet will be connected into a single global high-performance network because this maximizes their utility …

We uniquely assumed this network wouldUse a single general-purpose mechanism: the Internet ProtocolConnect anything that can produce, consume, process, or store informationHandle any communication application permissible by laws of physicsHandle global scale so everything could be connected

… and in so doing enriches every aspect of human existence!


The Internet ExplosionA RESOUNDING CONFIRMATION!

Exponential growth, now matter how you measure it!The clearest indication of value delivered to end-users

1988 1993 20081998 2003

# Connected Devices

# Web SitesInternet Capacity

# Google Searches/MonthTotal Digitized Information

Burning Question: Why?

33K

1B

160M

162M

100M

40M

9.5M

12EB/yr

4PB/yr

130EB/yr

60PB/yr

2.7B/mo

31B/mo

110EB

420EB

1.7M 25M1


Computing

Stored Program Microprocessor Multi-coreDigital

Computing Pipelining

Storage

DigitalStorage

Core Memory

FlashDisk DRAM

NetworkingHPN

Packet Switching

TCP/IPDigital Transmission

CircuitSwitching

SC

N

S

N

C

InformationSystem

Driving Force Behind Exponential GrowthTHE IMPERATIVE TO GROW HUMAN KNOWLEDGE AS FAST AS POSSIBLE

Knowledge Growth Rate

SC

N


Juniper’s Focus: High-Performance Networking

Scalable: Ability to grow to connect large number of end-points, any to anyFast: Ability to support any communication applicationReliable: Ability to function despite failures whether accidental or willfulSecure: Ability to protect itself and the information it carriesSimple: Built with simplest set of mechanisms

2 3 6

Exponential Growth => Constant Technological Challenge

103


Core Technology Competencies

Features and Functionality = Customer Value


Core Technology Competencies

Features and Functionality = Customer Value


SiliconTHE FOUNDATION OF PERFORMANCE

Instructions/packet

FabricEngine

(F)

CoreEngine

(C)

EdgeEngine

(E)

ServicesEngine

(S)

General-PurposeMicroprocessor

(G)

1–10 10–100 100–1000 1000–100,000

Cos

t/uni

t Ban

dwid

th

1

10

20

80

400StatefulProcessing

E

SG

100,000–∞

CC

F


The Network Instruction Set ProcessorA FUNDAMENTAL ADVANCE IN NETWORKING SILICON

ArchitecturalImprovements

Per

form

ance

Functionality4 x system capacity every 2 years


NISP65nm

4 Chips1.2Bn Transistors

604Gbps IO

Next Generation

I-Chip90nm1 Chip

160m Transistors219Gbps IO

2006

IP3180nm

10 Chips446m T

412Gbps IO

2002

20x

IP1, 2250nm4 Chips18m T

47Gbps IO

1998

JUNOS

Network Instruction Set

The Network Instruction Set ProcessorA FUNDAMENTAL ADVANCE IN NETWORKING SILICON

4 x system capacity every 2 years


JUNOSTHE FOUNDATION OF FUNCTIONALITY

Software Development Fundamentals– Code once inserted is hard to remove– Extreme optimizations damage structure– Very rapid or large changes damage structure– Structure degrades with change unless checked– Badly structured software degrades even faster– Complexity is the enemy of reliability– Complexity threshold => There is a point of no return– Quality is inversely proportional to #variants

# Releases# Code Bases# Acquisitions


JUNOSTHE FOUNDATION OF FUNCTIONALITY

Module X API

ONEArchitecture

1Q09

9.4

4Q08

9.3

3Q08

9.2

ONE Code Base

ONE Release Train

ONEJUNOS

Faster TTMLower TCOHigher ProductivityBetter Quality


One Architecture and Code Base

JUNOS Competition

Forwarding Services

Management

Kernel

Mod1 Mod2 ModN

SDK

Leverage LongevityConsistency

Reliability

aOS bOS

cOS dOSNMSGlue


One Architecture and Code Base

JUNOS Competition

Forwarding Services

Management

Kernel

Mod1 Mod2 ModN

SDK

Leverage LongevityConsistency

Reliability

“Multiple network Operating System

versions are the silent killers of efficiency”

Forrester report


One Development Train

JUNOS Competition

9.4

42 releases (100%) on time: one per quarter

9.2 9.3

Reliability Consistency Speed


One Virtualized Network

Advanced Insight Manager

Diagnostic System

ProvisioningSystem

Network and Security Manager

Security Threat Response Manager

VisibilitySystem

Unified Functional Manager

Lower TCOBetter SecurityMore Control

J Series SA Series EX Series Infranet Controller

STRM NSMXpress WX/WXC M Series SRX5800 EX8200 Series

MX Series


SystemsTHE FOUNDATION OF SCALABILITY AND VIRTUALIZATION

Uniform architectural principles– Small number of building blocks– Separated by clean, long-lived interfaces

Take physical constraints into account– Space, power, cooling– Signaling

IntegratedSystems

Modular Systems

Massive-ScaleMulti-Chassis

Virtualized Systems

C E

SGF

C E

SGF

C E

SGF

C E

SGF

C E

SGF

G

Small-Scale Medium-Scale Massive-Scale


SystemsTHE FOUNDATION OF SCALABILITY AND VIRTUALIZATION

IntegratedSystems

Modular Systems

Massive-ScaleMulti-Chassis

Virtualized Systems

C E

SGF

C E

SGF

C E

SGF

C E

SGF

C E

SGF

G

Small-Scale Medium-Scale Massive-Scale

Lower PowerBest Price/PerformanceOperational Simplicity


The Second Paradigm Shift“Centralize what you can, distribute what you must”

The global information infrastructure is being re-architected, by escalating costs, user preferences,

and an increasingly powerful network

This shift will transform all industries associated with producing, consuming, storing, processing, and transporting information

Most networks will be High-Performance Networksand all unconnected information systems will be worthless


Forces Driving Consolidation

High cost of distributed infrastructure– Operational expense– Inefficient utilization– Difficulty of providing security

Increasingly capable WAN– Reliable– Secure– General-Purpose

Strong user preference for– Simplicity– Ubiquity– Uniformity– Convenience (mobility, long battery life)

OPEXCAPEX


Clouds: The New Information InfrastructureMega Data Centers

(thousands)Clients

(billions)Global High-Performance Network

Campus

Branch

Home

Mobile

Infrastructure Consolidation

Workforce Globalization


Why Now?

T I M E

Rel

ativ

e co

sts

for g

iven

cap

abili

ty

Cost of Managing DistributedInfrastructure

ConsolidationPressure

Mainframes(’60–’75)

Minis/Client-Server(’76–’86)

PCs/Internet(’87–’07)

New Information InfrastructureEra (’08–???)

Deg

ree

of d

istr

ibut

ion

NetworkingCAPEX/Unit

ComputingCAPEX/Unit

# Computers

# NetworkingDevices


Key Implications

The Market is coming towards Juniper’s Core Competency:

High-Performance Networking

1 2 3


Data CentersTHE ENGINES OF CLOUD COMPUTING

• Scalable• Fast• Reliable• Secure• Simple• Efficient• Green• Cost-Effective

• Limited• Slow• Unreliable• Insecure• Complex• Underutilized• Power Hungry• Expensive





↑ CPU IO





↑ CPU IO↑ Disk IO






↑ # CPUs






↑ # CPUs↑ # Disks






↑ # CPUs↑ # Disks↑ # DisksIO

Compute↑






↑ # CPUs↑ # Disks↑ # DisksIO

Compute↑


Root of Current Limitations: LegacyLEGACY NETWORKS, LEGACY NETWORKING TECHNOLOGIES, AND LEGACY VENDORS

Legacy Ethernet

• Initially designed for small scale to run over coaxial cable

• Progressively enhanced with features some of which are irrelevant to data centers

• Scale, performance, cost and packet loss remain challenges

FiberChannel

• Initially designed for remotely connecting disks to a server via SCSI

• Progressively enhanced with features to provide scale and security for storage

• Scale, performance and cost remain challenges

• Initially designed as a replacement for PCI to connect IO devices to servers

• Subsequently positioned as a “low-latency” HPC interconnect

• Scale and security remain challenges

Infiniband


We Need Three Fundamental Advances

A single, scalable, cost-effective high-performance network purpose-built for connecting equipment inside the data center

A much tighter coupling between compute, storage, and services elements and the network

A single data center management system for setting policies, virtualizing, and allocating resources in a data center


We Need Three Fundamental Advances

S

N

C

Partner for Success

Go It Alone


The Stratus ProjectDELIVERING ON THE PROMISE OF CLOUD COMPUTING

DataCenter

Manager


THANK YOU


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