1 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Safe Harbor Statements 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”. 2 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

ENTERPRISE BUSINESS EXECUTION

Mark Bauhaus, Hitesh Sheth, Lauren Flaherty and John Morris Analyst Day, February 2009 3 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Scope of This Presentation THE POWER OF ONE One JUNOS

Aligned GTM

JUNOS

ALIGN GTM BY SEGMENT, EMBRACE PARTNERSHIPS Service Enterprise Service Providers Providers

CustomerFocused Value

DELIVER CUSTOMER-FOCUSED VALUE

Excellence in Execution

EXECUTIONAL EXCELLENCE

Advance Intellectual Property

INNOVATION FOR THE FUTURE

HPN Networking

Planning

MegaConsolidation

Lower TCO

Process

Platform Services

4 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Choice and Flexibility

Productivity

Mobility

People

Video

Green

Juniper’s Value Proposition

HighPerformance Networking

Lower TCO

Choice and Flexibility

 Highest-density wire-rate 10GbE switching  Highest-density terabit routing  Industry’s fastest firewall  41% lower overall network operations cost  44% lower power consumption in data center  Only pure Ethernet/IP fullportfolio networking vendor

 Fully standards-based interoperability

5 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

A Look Back at 2008 New Products

Solutions

Customer Wins

Data Center EX Series

MX DPC Cards

Campus SRX Series

STRM

IDP, SA, WXC Refresh

Adaptive Threat Management

99 out of 100 NSM

6 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

A Look Back at 2008

 22% enterprise revenue growth in 2008

 Leading market share – #1 in High-end FW/VPN, SSL VPN – #2 in High-end Routers, Secure Routers

 Strong entry into Ethernet switching market – Shipped over 500,000 switch ports in 2008

NSM

STRM

7 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Powerful Product Portfolio SA & UAC WX

SRX5800 IDP

SRX5600 TX Matrix Plus T Series ISG MX Series

SSG

EX8208

M Series J Series EX4200

EX3200 8 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Advanced Insight Services

Powerful Product Portfolio SA &

RECENT 2009 UAC LAUNCHES WX

SRX5800 IDP

SRX5600

EX 8208: High-performance wirerate 10GbE switching

TX Matrix Plus T Series

ISG SSG

TX Matrix Plus: MX Series Ultra-high-performance routing at 50% smaller M Series footprint and 40% less power J Series

EX8208

EX4200

EX3200 9 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Advanced Insight Services

Powerful Product Portfolio SA & UAC

ANNOUNCING SRX 3400/3600

WX

SRX5800 IDP

SRX5600 TX Matrix Plus

SRX3600 SRX3400

T Series

ISG MX Series

SSG

M Series

Category performance leader at 1/6 the power and space EX8208 Launching Q1-2009

J Series EX4200

EX3200 10 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Advanced Insight Services

Powerful Product Portfolio SA &

ANNOUNCING UAC EX 8216 WX SRX5800 IDP

SRX5600 TX Matrix Plus

SRX3600 SRX3400

T Series EX8216

ISG MX Series

SSG

EX8208

Highest density wire-speed M Series 10GbE switch J Series

Launching Q2-2009 EX3200 11 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

EX4200

Advanced Insight Services

Powerful Product Portfolio SA &

ANNOUNCING: UAC EX 2500 WX SRX5800 IDP

SRX5600 TX Matrix Plus

SRX3600 SRX3400

T Series EX8216

ISG MX Series

SSG

Wire-rate, low-latency 24-port 10GbE switch for top-of-rack

EX8208 EX2500

M Series

LaunchingJQ2-2009 Series EX4200

EX3200 12 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Advanced Insight Services

Powerful Product Portfolio SA & UAC WX

SRX5800 IDP

SRX5600

Leveraged R&D TX Matrix

One JUNOS SRX3600 One Management SRX3400

ISG SSG

Plus

Faster time to market EX8216 Customer value

T Series

One Architecture MX Series

EX8208 EX2500 M Series J Series EX4200

EX3200 13 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Advanced Insight Services

Solutions Enabled Across the Enterprise Clients (billions)

Global High-Performance Network

Mega Data Centers (thousands)

Mobile SA Mobile Agent SA Agent

Remote Access

Home ISG EX Series

Branch J /SSG Series

SRX Series

MX Series

Branch

Refreshed SA, UAC, WXC Series

Campus ISG

Data Center

M Series

SRX Series

Campus EX Series 14 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

EX Series

We Are Capitalizing on Industry Inflections Clients (billions)

Mobile

Global High-Performance Network

Workforce Globalization

Home

Branch

Data/App Consolidation Campus 15 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Mega Data Centers (thousands)

We Are Delivering What CIOs Want Right Now

HighPerformance Networking

 “Down-time is NOT an option”  “De-risk my business”

Lower TCO

 “Give me ROI in < 12 months”

Choice and Flexibility

 “It’s time for an alternative”

16 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

High-Performance Networking Takes Complexity Out of the Network Legacy Network

Layers are collapsed

Core Aggregation

Access

Devices are collapsed

Operations are simplified

17 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

High-Performance Networking Takes Complexity Out of the Network Legacy Network

Juniper High-Performance Network

High-Performance Network: Layers are collapsed

Core Aggregation

Aggregation + Core

Access

Scalable Fast

Devices are collapsed

Reliable Secure

Operations are simplified

Simple

18 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

9.2

9.3

9.4

HPN Drives Lower Cost of Ownership Clients (billions)

High-Performance Networkin the LowerGlobal cost of ownership

WORKPLACE Traditional Networking Vendor

TCO impact*

JUNOS

Traditional Network OS

25% savings

$53.7k/yr

$105.4k/yr

49% savings

$2.2M

$3.3M

33% savings

Mobile

OPEX/time to manage OS Annual support

Home

Branch

CAPEX

Mega Data Centers (thousands)



1/10 number of switches to manage on a large campus



2x to 15x faster security in a small branch



World’s first downloadable secure client for iPhones * Source: Juniper TCO tool and case studies

Campus 19 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

HPN Drives Lower Cost of Ownership… High-Performance Networkin the LowerGlobal cost of ownership

Clients (billions)

DATA CENTER Traditional Networking Vendor

TCO impact*

JUNOS

Traditional Network OS

25% savings

372 MWh/yr

667 MWh/yr

44% savings

210 RU

450 RU

55% savings

$4.6M

$9.6M

52% savings

Mobile

OPEX/time to manage OS Power

Mega Data Centers (thousands)

Home Rack Space CAPEX

Branch



Live migration of VMs from racks to clouds



Up to 6x better defense against DoS attacks



“Zero-day” vaccination for new security vulnerabilities

Campus 20 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

* Source: Juniper TCO tool and case studies

… as Demonstrated by an Independent Study Critical Categories of Enterprise Network Operational Costs Switch and Router Downtime Costs (based on reduction in frequency and duration of unplanned Network events)

Baseline for All Network Operating Systems

Switch and Router Maintenance & Support Costs

Switch and Router Deployment Time Costs

(a “planned events” category)

(the “adding infrastructure” task)

Unplanned Switch and Router Events Resolution Costs (the time needed to resolve unplanned network events)

Overall Switch and Router Network Operations Costs (the combined total savings associated with planned, unplanned, planning and provisioning and adding infrastructure tasks)

.

27%* Lower With JUNOS

54%* Lower With JUNOS

25%* Lower With JUNOS

* Source: The Total Economic Impact of JUNOS Network Operating Systems”, A commissioned study conducted by Forrester Consulting on behalf of Juniper Networks, February 2009.

21 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

40%* Lower With JUNOS

41%* Lower With JUNOS

Multiple Network Operating System versions are the silent killers of efficiency Forrester Consulting Single Network Operating System Study 02/09

Product Portfolio Drives Customer Value

Products purchased: EX, MX, M10i, J Series

Products purchased: NS5000, IDP, SA, UAC

Products purchased: IC, EX Series, STRM, NSM

Products purchased: SRX, SA, NSM

Products purchased: MX, EX, ISG, UAC, SA

Products purchased: MX, M7i, J Series, EX, SSG, CTP

Products purchased: SSG with UTM, SA, IDP, WXC, NSM

China Ministry of Railways Products purchased: ISG, IDP

22 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Department of Energy / ESnet Products purchased: EX Series, MX Series

Customers Want More

HighPerformance Networking

Lower TCO

Choice and Flexibility

 Highest-density wire-rate 10GbE switching  Highest-density terabit routing  Industry’s fastest firewall  41% lower overall network operations cost  44% lower power consumption in data center  Only pure Ethernet/IP fullportfolio networking vendor

 Fully standards-based interoperability

24 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Voice of the Customer

25 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

What’s the message…Demand More Print Advertising

Web 2.0 Technology

Video

Direct Mail

Online Advertising

26 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Connected Sales and Marketing model Go-To-Market Profile 1:1 Surgical Focus Wallet Share Expansion

Go-To-Market Profile 1:Many Mind Share and Lead Generation Account Acquisition

27 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Strongly Aligned Lead Generation Nurture:

Stimulus

Capture

Demand More Center Proposal Engine 48 hour response

Search/Web/blogs Electronic Mail Campaigns

RFP

Events & Multi-city Seminars

Direct Mail Campaigns

PO

Inside Sales Organization

PO PO

Close

Route

28 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Qualify

Hyper-Efficient One-to-Many Coverage

One-to-Many  Demand generation  Inside sales  J-Partners

29 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Surgical Focus on High-Performance Networks One-to-One  Targeted direct-touch selling

One-to-Many  Demand generation  Inside sales  J-Partners

30 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Quality Partnerships Expand Reach Resellers

31 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Quality Partnerships Expand Reach Resellers

Systems Integrators

33 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Continued Expansion of IBM GTM Partnership  Launched 5 solutions  Certified 418 IBM technical team members

 Achieved 2009 quota interlock

34 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Quality Partnerships Expand Reach Resellers

Systems Integrators

Managed Services Providers

35 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

2006 Results

2007 Results

2008 Results

Security Hardware Vendors

#4

#1

#1

Network Infrastructure Vendors

#8

#3

#2

Excellence in Execution in Enterprise

TALENT

SYSTEMS & TOOLS

DISCIPLINE

 Developing deep skills  Building 1:Many expertise

 Pipeline management  Lead distribution

 Sales execution cadence  Balanced scorecard

36 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

Enterprise Headlines

Current market dynamics play to our strengths Innovative technology delivers customer value Connected Sales & Marketing drives growth

37 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

THANK YOU

38 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net

39 | Copyright © 2009 Juniper Networks, Inc. | www.juniper.net