1. Riverbed Using wide-area data services (WDS) to meet global business opportunities and challenges Jon Arnold Regional Director Northern Europe

2. Agenda Riverbed overview company Market dynamics What does the technology do and how does it all work

3. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 3 The Vision for CIOs fundamentally shift the economics for IT infrastructure eliminate distance as a bottleneck for workers enable business leaders to rapidly respond to opportunities

4. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 4 Goldman Sachs - December 2007 CIO Survey

5. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 5 Top IT Priorities for 2008 – CIO Survey 1. Business intelligence 2. Application integration 3. ERP software 4. Business processes management / workflow software 5. Security 6. Storage hardware (disk arrays, appliances, etc.) 7. Disaster recovery / business continuance planning 8. Server virtualization 9. Server consolidation 10. Data center consolidation 11. Web application development, incl. portals 12. Wireless networking 13. Mobile computing / remote access 14. Compliance / risk management 15. WAN optimization 16. Storage management software (including backup) 17. Service-oriented architecture (SOA) 18. Cost cutting 19. Customer relationship management software 20. Thin client computing Source: Goldman Sachs - December 2007 CIO Survey

6. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 6 Where can WDS help you meet their goals? 1. Business intelligence 2. Application integration 3. ERP software 4. Business processes management / workflow software 5. Security 6. Storage hardware (disk arrays, appliances, etc.) 7. Disaster recovery / business continuance planning 8. Server virtualization 9. Server consolidation 10. Data center consolidation 11. Web application development, incl. portals 12. Wireless networking 13. Mobile computing / remote access 14. Compliance / risk management 15. WAN optimization 16. Storage management software (including backup) 17. Service-oriented architecture (SOA) 18. Cost cutting 19. Customer relationship management software 20. Thin client computing Source: Goldman Sachs - December 2007 CIO Survey

7. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 7 Who is Riverbed? The market and innovation leader in Wide area Data Services A profitable public company (RVBD) ▪ Over $300 million in annualized revenue ▪ Global sales and support operations A trusted IT supplier to over 4,500 enterprise customers ▪ Tens of thousands of appliances installed and operating around the world The vendor with the best products in the market. ▪ Steelhead appliances offer best performance across key applications. ▪ They are the most scalable solutions on the market ▪ And the easiest to deploy and manage

8. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 8 Forces Fueling Riverbed Growth Increasingly distributed workforce Consolidation of data Rapid data growth

9. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 9 Riverbed’s Growth Rate Outpaces Other Leaders ($ in millions) 1990 - $69M 1997 - $93M 2001 - $107M 2007 - $236M

10. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 10 “The greatest pleasure in life is relief from pain…” Aristotle, 350 BC

11. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 11 In a nutshell: what we do “Makes 3000 miles feel like 30 feet” WAN Steelhead products accelerate applications to branch offices and mobile workers Steelhead products cut bandwidth use by 60 – 95% Strategically grow your business by eliminating the constraints of distance DATA CENTER BRANCH OFFICE MOBILE WORKERS

12. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 12 How does WDS help your customer? Save money Improve service levels Give their organization the flexibility it needs Simplify remote / branch offices Centralize servers & storage End-to-end virtualization Improve continuity in the face of disaster or equipment failure

13. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 13 Consolidate Branch Office IT Equipment that can be consolidated Windows file servers / filers Exchange servers Application servers SMS servers Content caches Tape autoloaders Benefits from consolidation Capital cost of IT infrastructure Maintenance / management costs Fewer servers = Fewer licenses Higher utilization on (centralized) servers Reduce branch / outsourced IT staff Eliminate or reduce off-site media management and storage Simplified data management / less content distribution required Reduced operational errors due to “single copy” approach to data

14. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 14 Improve Disaster Recovery DR / DP Results Reduce time to replicate ▪ Usually by a factor of 4x to 30x Reduce WAN traffic during DR operations ▪ Often by up to 99% Compatible with virtually any storage or replication vendor: ▪ Network Appliance ▪ 3Par ▪ EqualLogic ▪ Isilon ▪ Compellent ▪ Sepaton ▪ BlueArc ▪ Agami ▪ LeftHand Networks Benefits Meet RTO/RPO objectives More frequent or more complete backups Less impact on other applications due to DR / DP processes More centralization possible than without Riverbed ▪ Veritas ▪ DoubleTake ▪ CommVault ▪ Mimosa ▪ Lucid8 ▪ TimeSpring

15. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 15 Riverbed’s approach accelerates all TCP applications

16. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 16 Riverbed has customers in all industries Financial Services Professional ServicesManufacturing Media/CommunicationsA/E/C EnergyHealthcare/Bio/Pharma US and International Government Retail/Consumer Transportation/Logistics Tech/Software Service Providers

17. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 17 Productivity Riverbed can help make many different projects successful Application Acceleration Site Consolidation Bandwidth Optimization Mobile Worker Acceleration Windows File Sharing Email Web ERP/CRM Lotus Notes NFS FTP Custom apps File servers Email servers Filers Remote storage Tape backup equip. Off-site media mgmt. On-line backup Outsourced services Reduce WAN bandwidth Avoid WAN upgrades Expand narrow links Fill up LFNs Prioritize traffic Protect VoIP quality Disaster Recovery RTO Reduction RPO Reduction Remote site backup Server replication SAN replication VM replication On-line backup Cost SavingsData Protection

18. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 18 Riverbed has the largest successful deployments Australia 230+ sites deployed, driven by performance for Web and office applications Global deployment for one of largest network presences in the world; Uses Riverbed in “network in a box” field deployments 300 appliances deployed across the country. Main driver is the consolidation of SharePoint and.NET applications Competitive take out; Backups prior to the installation of the Steelhead devices use to take days now take 2 to 3 hrs to complete. 100+ appliances deployed. Driver was data center consolidation down to 1 main data center. Payback of $30 million over 5 years

19. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 19 And has major partners in every area of technology Storage HW & Applications Virtualization Network Management Security A/E/C Applications Enterprise Applications Wireless, VoIP and Media Streaming

20. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 20 Riverbed is #1 in the Gartner Magic Quadrant* and Forrester Wave * Riverbed chosen by Gartner as the leader 2 years in a row

21. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 21 Gartner Magic Quadrant

22. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 22 WDS has tangible, fast payback 7.3 Month Payback period on average Savings across ▪Hardware ▪Software ▪Bandwidth ▪Staff ▪Productivity

23. Maximizing remote application performance

24. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 24 Riverbed – A history of technical execution RiOS 1.0 & 2.0 Transport Streamlining High Speed TCP TCP Connection Pooling Application Streamlining MS-SQL Accelerator Module MAPI 2K3 (Phase II) Enhancements CIFS large folder optimization Proxy File Services (Disconnected Operations) Management Streamlining Steelhead to Steelhead Encryption Connection Forwarding (Asymmetric Routing Support) RiOS 1.0 & 2.0 Transport Streamlining High Speed TCP TCP Connection Pooling Application Streamlining MS-SQL Accelerator Module MAPI 2K3 (Phase II) Enhancements CIFS large folder optimization Proxy File Services (Disconnected Operations) Management Streamlining Steelhead to Steelhead Encryption Connection Forwarding (Asymmetric Routing Support) July 2005 RiOS 2.1 Management Streamlining Serial Clustering Port Ranges for In-Path Rules Touchless Configuration Scheduled Operations Enhanced Policy Configuration Aggregated Reporting RiOS 2.1 Management Streamlining Serial Clustering Port Ranges for In-Path Rules Touchless Configuration Scheduled Operations Enhanced Policy Configuration Aggregated Reporting RiOS 3.0 Data Streamlining QoS Enforcement & HFSC Application Streamlining NFS Application Streamlining Agentless CIFS Pre-population PFS Integrated Replication CIFS Overlapping Opens Management Streamlining Asymmetric Route Detection Netflow Export Enhanced Traffic Reporting Client-side connection forwarding RiOS 3.0 Data Streamlining QoS Enforcement & HFSC Application Streamlining NFS Application Streamlining Agentless CIFS Pre-population PFS Integrated Replication CIFS Overlapping Opens Management Streamlining Asymmetric Route Detection Netflow Export Enhanced Traffic Reporting Client-side connection forwarding RiOS 4.0 Data Streamlining QoS Enhancements Transport Streamlining Max Speed TCP Application Streamlining SSL Optimization Enhanced HTTP(S) Application Streamlining Management Streamlining Enhanced Auto-Discovery Active-Active Failover Print Server RiOS 4.0 Data Streamlining QoS Enhancements Transport Streamlining Max Speed TCP Application Streamlining SSL Optimization Enhanced HTTP(S) Application Streamlining Management Streamlining Enhanced Auto-Discovery Active-Active Failover Print Server RiOS 1.2 Application Streamlining MAPI 2K3 Enhancements non-cached mode Secure CIFS option Management Streamlining Simplified Routing Support for VLAN trunked links 802.1q RiOS 1.2 Application Streamlining MAPI 2K3 Enhancements non-cached mode Secure CIFS option Management Streamlining Simplified Routing Support for VLAN trunked links 802.1q October 2005 August 2006March 2007 2008 2007 2006 2005 March 2005 This presentation is for information purposes only and is not a commitment, promise or legal obligation to deliver any new products, features or functionality. The development, release, and timing of any features or functionality described remains at Riverbed's sole discretion. RiOS 4.1 Data Streamlining DR Acceleration Application Streamlining Oracle Acceleration Management Streamlining Encrypted Data Store RiOS 4.1 Data Streamlining DR Acceleration Application Streamlining Oracle Acceleration Management Streamlining Encrypted Data Store October 2007 March 2008 RiOS 5.0 Data Streamlining Hierarchical QoS Application Streamlining MAPI 2K7 Acceleration Web Application Acceleration Enhanced SSL Acceleration Management Streamlining RiOS Services Platform 3 WAN Visibility Modes Centralized Security IPSEC Enhancements Role Based Administration Enhanced GUI RiOS 5.0 Data Streamlining Hierarchical QoS Application Streamlining MAPI 2K7 Acceleration Web Application Acceleration Enhanced SSL Acceleration Management Streamlining RiOS Services Platform 3 WAN Visibility Modes Centralized Security IPSEC Enhancements Role Based Administration Enhanced GUI Steelhead Mobile 1.0 Data Streamlining SDR and LZ Compression Transport Streamlining Connection Pooling Virtual Window Expansion Application Streamlining CIFS, MAPI Management Streamlining Enhanced Auto-Discovery Remote Management Steelhead Mobile 1.0 Data Streamlining SDR and LZ Compression Transport Streamlining Connection Pooling Virtual Window Expansion Application Streamlining CIFS, MAPI Management Streamlining Enhanced Auto-Discovery Remote Management August 2007

25. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 25 Distributed computing problems are converging File Servers Mail Servers Web Servers FilersTape Backup Storage WAN File Servers Mail Servers Filers Tape Backup DATA CENTERBRANCH OFFICE Application problems  Web, e-mail, FTP, Notes, ERP, database, etc…  Slow response times  Apps often not used…too slow Storage problems  Data sprawl  Islands of storage  Backup & replication  Compliance worries Networking problems  Need “more bandwidth”  Latency is a secret throughput killer  Important applications not prioritized

26. The Riverbed Optimization System (RiOS)

27. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 27 Riverbed scales to every location and every worker Steelhead Mobile software Deployed on a laptop or desktop PC Great for workers on the move Also works for temporary locations and very small branch offices Steelhead Appliance Deployed in data center and branch offices of all sizes 13 Models to choose from

28. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 28 How we do what we do Bandwidth Limitations Transport Chattiness and Latency Application Chattiness and Latency Root Cause Management Streamlining Data Streamlining Transport Streamlining Application Streamlining Solution The Riverbed Optimization System Optimize WAN bandwidth utilization Prioritize applications’ bandwidth use Accelerate large-scale disaster recovery jobs Eliminate transport protocol inefficiencies Support secure traffic acceleration (SSL) Optimize application WAN performance Reduce protocol chatiness Enable transparent deployment Provide additional best-of-breed services Facilitate central management and reporting Eliminate Bandwidth Constraints 5x more bandwidth without additional network costs Accelerate applications over the WAN to mobile users or branch offices Up to 100x faster Make it simple to deploy and manage 15 minutes for basic deployment Enable consolidation for smarter management

29. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 29 The RiOS underlying framework Initiate new TCP sessions Maintain TCP sessions WAN DATA CENTER BRANCH OFFICE Maintain TCP sessions 1.Transparent deployment to maintain client/server interaction with no changes Steelhead appliances and Steelhead Mobile auto-discover their peers Compatible with existing QoS and reporting tools 2.Initiate new TCP connections across the WAN each time a new session is requested No tunnels used VoIP, Video are passed through with no degradation

30. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 30 Data WAN Data streamlining overcomes bandwidth limitations Reconstructed Files & Data Request Files & Data Steelhead auto-intercepts response, and segments data Only new bytes compressed & sent over the WAN 60-99% reduction in WAN utilization Requests go directly from the client to the server DATA CENTER BRANCH OFFICE 16-Byte references communicate megabytes of existing data Remote Steelhead reconstructs data and delivers it to the client *Technology functions the same for Steelhead appliances and Steelhead Mobile software

31. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 31 WAN Transport streamlining overcomes TCP limitations Make TCP payload bigger 16KB to 100KB+ The net effect is a 60-98% reduction in round trips DATA CENTER BRANCH OFFICE Repack payload with references From 100KB+ to Virtual 1MB+ References New data Data *Technology functions the same for Steelhead appliances and Steelhead Mobile software

32. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 32 Request Application streamlining overcomes application protocol limitations WAN DATA CENTER BRANCH OFFICE Optimized WAN Transfer The net effect is 65-98% reduction in WAN round trips Steelhead completes transaction locally Steelhead completes transaction locally *Technology functions the same for Steelhead appliances and Steelhead Mobile software

33. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 33 Use Case: UK to Asia “file open” via MS Word A 10 MB Word doc opened, edited, and saved from a client in Shanghai to a server in Edinburgh over a 250ms RTT link can take 1000s of round trips and over 31 minutes! CLIENT (Shanghai) SERVER (Edinburgh) time File Open FID 250ms WAN Latency Read(1) 250ms WAN Latency Read(2) 250ms WAN Latency Read(n) 250ms WAN Latency File

34. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 34 Windows File Sharing & Windows-based applications Microsoft Exchange Web applications & secure web applications Database driven applications Disconnected operations & integrated file sharing Application streamlining overcomes application limitations CIFS MAPI HTTP / HTTPS MS-SQL BACKUP & REPLICATION PROXY FILE SERVICE Simplified replication of remote servers Unix File Sharing & Unix-based applications NFS *Not all features are available on Steelhead Mobile software Oracle Oracle forms traffic NEW!

35. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 35 Providing a platform for virtualized edge services – the RSP The Riverbed Optimization System Networking (DNS/DHCP ) Streaming Media Print Services Security Data Streamlining Transport Streamlining Application Streamlining Management Streamlining Visibility, Control, and Monitoring Management Streamlining Visibility, Control, and Monitoring RiOS Services Platform (RSP)* Leverage your WDS footprint further Use best-of-breed services from other vendors *In RiOS 5.0, only one module may be run in the RSP *Not all services may be currently available Other Services

36. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 36 RiOS is at the heart of Riverbed’s competitive advantage Speed  Typically 3 – 5x faster than competitors*  Fastest performance for the broad range of applications that enterprises care about Scalability  Data reduction 2x – 3x better than competitors*  Elegantly scales from single user to big environments Simplicity  15 minutes to deploy, versus 2 – 3 hours for competitors*  Unique features like autodiscovery, RSP  Most multi-hundred site implementations  Most new products & features brought to market: Steelhead Mobile, SSL, Interceptor, MAPI 2K3, NFS Success *Based on multiple in-production F500 tests over the past 6 months

37. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 37 Riverbed has worldwide support & logistics operations Santiago Tokyo Singapore New York Rotterdam Beijing Hong Kong Sydney Chennai Johannesburg Abu Dhabi Moscow Seoul Sao Paulo Tokyo Amsterdam London Parts Depots Technical Assistance Center (TAC) Corporate HQ Mountain View San Francisco 7x24 “follow the sun” support from six global support centers 4 hour hardware support from 1400+ points in 220 countries through Orange and IGS Partnerships Toronto Mexico City

38. © 2006 RIVERBED TECHNOLOGY, INC – CONFIDENTIAL 38 RiOS is at the heart of Riverbed’s competitive advantage Speed  Typically 3 – 5x faster than competitors*  Fastest performance for the broad range of applications that enterprises care about Scalability  Data reduction 2x – 3x better than competitors*  Elegantly scales from single user to big environments Simplicity  15 minutes to deploy, versus 2 – 3 hours for competitors*  Unique features like autodiscovery, RSP  Most multi-hundred site implementations  Most new products & features brought to market: Steelhead Mobile, SSL, Interceptor, MAPI 2K3, NFS Success *Based on multiple in-production F500 tests over the past 3 months

39. Thank you for your time jarnold@riverbed.com