1. Visibility Fabrics for Measurement, Management and Security

2. Opportunities and Challenges The World of IT continues to evolve 2 Network Fixed Mobile Servers Physical Devices Applications In house Virtual Employee Cloud Corporate Information on the Move Who What Where When Data ‘Exploding’ Evolving

3. Opportunities and Challenges The World of IT continues to evolve 3 Who What Where When Security Network Performance Management Application Performance Management Analytics Network Forensics IT Infrastructure Cloud Mobility

4. Opportunities and Challenges The World of IT continues to evolve 4 Who What Where When Security Network Performance Management Application Performance Management Analytics Network Forensics IT Infrastructure Cloud Mobility  Information and events being missed  Increasing operational complexity  Performance constraints

5. The Visibility Fabric A pervasive and intelligent layer 5 Who What Where When Security Network Performance Management Application Performance Management Analytics Network Forensics IT Infrastructure Cloud Mobility

6. Value Proposition : Tool Proliferation Compliance and monitoring demand exceeds supply 6 ChallengeProliferation of Network & Application Management, Monitoring and Security Tools & Systems CauseDemands for greater compliance & auditability Increasing focus on the “customer experience” Competitive pressures ImpactOperational complexity, increasing costs & resources High CapEx demands with challenging ROI Compliance and information exposure and risks Performance Monitor Application Security Forensic Recorder Intrusion Detection Probe Network Infrastructure X X X

7. Value Proposition : Tool Proliferation Compliance and monitoring demand exceeds supply 7 Performance Monitor Application Security Forensic Recorder Intrusion Detection Probe Network Infrastructure X X X SolutionSingle or multi-rack/location GigaVUE Visibility Fabric Intelligent replication and forwarding of appropriate traffic Wire-speed, no-loss traffic dissemination ResultsEnhance manageability, security and analytics Improved ROI on current, and past, investments Greater operational flexibility and reduced complexity Visibility Fabric

8. Value Proposition : Network Growth Network Expansion exceeds tool supply 8 ChallengeNetwork bandwidth and scale exceeding monitoring tool performance and available CapEx budget CauseExplosive growth in volume of traffic Demand for mobility and increased network accessibility Business agility requiring flexible infrastructure/services ImpactHigh CapEx investment to sustain monitoring ‘reach’ Significant risk of missed security and mgmnt events Deferring bandwidth upgrades to maintain compliance Performance Monitor Network Infrastructure Performance Monitor X X X X

9. Value Proposition : Network Growth Network Expansion exceeds tool supply 9 Performance Monitor Network Infrastructure Performance Monitor X X X X SolutionIntelligently control traffic from “many ports to few tools” Bridge the speed gap from 10Gb networks to 1Gb appliances Deliver pervasive, intelligent visibility in a central location ResultsEnabling progressive migration from 1=>10Gb network Create out-of-band flexibility for Operations team Enable IT to support business expansion and growth Visibility Fabric

10. The Demand is Clear Independent survey results from Dec 2011 10 Monitoring/security tools cannot keep up Not enough SPAN ports for the tools NOC teams cannot provision SPAN ports fast enough 40% 38% 36% Monitoring and Security tools need too many connection points 48% Do you believe a Visibility Fabric would be useful in your environment 79% Survey conducted by Enterprise Strategy Group

11. The Visibility Fabric Portfolio Solutions for small, medium and large deployments 11 Security Network Performance Management Application Performance Management Analytics Network Forensics IT Infrastructure Cloud-based Solutions Mobility Applications Visibility Fabric GigaVUE Visibility Nodes G-TAP® Portfolio GigaVUE-212 GigaVUE-420 GigaVUE-2404 GigaVUE-HD8 G-TAP-ATX G-TAP Visibility Fabric

12. The Visibility Fabric Portfolio Solutions for small, medium and large deployments 12 IT Infrastructure Cloud-based Solutions Mobility Applications GigaVUE-212 GigaVUE-420 G-TAP-ATX G-TAP Gigamon Visibility Fabric Citrus™ GigaVUE-2404 GigaSMART ® GigaSECURE TM G-SECURE-0216 GigaVUE-TA1 Visibility Core Mgmt H-VUE™ Gateway

13. Gigamon The background 13 Founded in 2004 First product shipping in 2005 Global reach to growth markets Install base of 80,000+ ports 860+ companies in 40+ countries Over 150 of the Fortune 1000 Funding from Highland Capital Partners in Jan 2010 Our Leadership Ted Ho, CEO, Co-Founder Aidan Cullen, CFO Patrick Leong, CTO, Co-Founder Thomas Cheung, VP Engineering Co-Founder King Won, VP Services, Co-Founder Michael Ruettgers, Director Ken Goldman, Director Peter Bell, Director Corey Mulloy, Director Our Vision Pervasive visibility of communications enabling infrastructure of tomorrow. Our Company

14. Our Customers Global solutions for Global organizations 14 Utilities Global Service Providers Innovation Powerhouses Finance and Insurance Online Services

15. Investment Summary Gigamon. Visibility for the Cloud and the Mobile world. 15 Proven Quality Market Leadership Customer Focused Market creator; 1 st mover World-leading reliability Virtualized Data Center Solution 150+ of F-1000 across all markets Longest warranty in the industry Attentive and capable Nimble, agile and responsive Relevant Solutions Enterprise, Telco and Cloud

16. Thank you