1. Virtualization driving the need for Affordable 10 GbE © 2009 Extreme Networks, Inc. All rights reserved Jan Hof Director Field-Marketing EMEA-SAM jhof@extremenetworks.com

2. ports shipped around the world years as a NASDAQ-listed company of revenue invested in R&D on avg. Extreme Networks Well-Established Company patents partners worldwide Page 2 © 2009 Extreme Networks, Inc. All rights reserved.

3. Our Data Center Business  100+ data center customers worldwide  ~25-30% of annual sales  Industry-leading portfolio  10G stackable switch  10G modular switch Committed to Data Center Networking © 2009 Extreme Networks Inc. All rights reserved. Page 3

4. Agility Storage Density Computational Density The Enterprise Data Center Transformation Transformational Demands Continue to Evolve © 2009 Extreme Networks, Inc. All rights reserved. Page 4  Application growth & diversity  Blade server technology  Large scale virtualization  Exploding volume of data  Increased performance  Organizational responsiveness  Infrastructure extensibility

5. 10GbE NIC/LOM Volume Trends Driving 10 GbE Adoption ’03200720092008 Multi-Core CPU architecture allows multiple applications on the processor Server consolidation and virtualization requires more I/O bandwidth per server Growth of network storage is driving demand for higher network bandwidth 50K 500K 2006 10GBaseT Spec Released June ‘06 10GBaseT Spec Released June ‘06 10GbE Spec Released 2002 ’02’04 PCIe* Spec Released 2004 PCIe* Spec Released 2004 2010 Copper Adapters & Switches Accelerate 10GbE Adoption © 2009 Extreme Networks, Inc. All rights reserved. Page 5

6. Why 10 Gigabit Ethernet? Why Now?  Connectivity needs today - extend beyond just providing a higher bandwidth pipe  Must support the performance features of the evolving datacenter technologies Scale on multi-core processor-based servers Supporting the I/O arbitration needs of multiple virtual machines (VMs) in sever consolidation and virtualization Providing economical, energy-efficient, high-performance connectivity for server blades and high-density computing Fiber Channel over Ethernet (FCoE) and Internet Small Computer System Interface (iSCSI) support for storage-over-Ethernet applications Page 6 © 2009 Extreme Networks Inc. All rights reserved.

7. Topological Flexibility Data Center Access Layer Designs Page 7 DesignDescriptionProsCons EoR End of Row  All wiring is run from each server to the end of the row (last rack)  Fewer switches  Can accommodate mixture of 10G and high density 1G server environments  High density of physical connections in EoR rack(s)  More physical wiring components; patch panels, cable trays, etc. ToR Top of Rack  All servers aggregate into switches located at the top of the individual server rack/cabinet.  Greatly reduced wiring which will save DC build cost  Troubleshooting will generally be easier  Easy to migrate individual racks from 1G to 10G service  More switches  Not enough density to accommodate high density 1G environment © 2009 Extreme Networks Inc. All rights reserved.

8. End of Row: Available Today BlackDiamond ® 8900-Series Modules ► Scalability and Density 582 x 10 GbE ports per rack 128/80 Gbps per-slot capacity ► Infrastructure Flexibility Extensibility through modularity ► Total Cost of Ownership Investment protection—the same chassis Leading power efficiency Page 8 8900-series Launched May 11 th © 2009 Extreme Networks Inc. All rights reserved.

9. Page 9 Learn more on Widgets and Network Automation? Please join our Technical Workshop and win a Summit X250e switch! Reduce Power Consumption ► Port efficiency: 2W max. / 1 GbE port, 10W max. / 10 GbE port ► Hibernation mode: consumption @ 30%  Switch-off unused ports Network AutomationImproved OpEx …through lower power consumption © 2009 Extreme Networks Inc. All rights reserved.

10. Top of Rack: Shipping since Dec-2008 Summit ® X650  First 10 GbE switch with 512 Gbps stacking performance  First 10 GbE switch with stacking across the edge portfolio  First 10 GbE switch with 40 GbE/100 GbE future proofing  First product to offer 10 GbE over copper  First company to offer a single Operating System throughout Page 10 © 2009 Extreme Networks Inc. All rights reserved.

11. New 10 Gigabit Ethernet Technologies 10GBASE-T and SFP+  Two new technologies are driving 10 gigabit adoption 10GBASE-T (802.3an)  RJ-45 jack, “Connector Of Choice”  Standards Based  10 Gigabit over UTP: Cat6a and Cat7  100 meter reach  Plug-and-play simplicity of copper  Lower cost than fiber  Port count density meets increasing bandwidth demands  Existing infrastructure Extends the customer’s investment in Ethernet Page 11 © 2009 Extreme Networks Inc. All rights reserved.

12. New 10 Gigabit Ethernet Technologies 10GBASE-T and SFP+  Two new technologies are driving 10 gigabit adoption 10GBASE-T (802.3an)  RJ-45 jack, “Connector Of Choice”  Standards Based  10 Gigabit over UTP: Cat6a and Cat7  100 meter reach  Plug-and-play simplicity of copper  Lower cost than fiber  Port count density meets increasing bandwidth demands  Existing infrastructure Extends the customer’s investment in Ethernet SFP+  New small form factor  Fewer components on optics  Expected 30-40% price reduction on optics (versus XFP)  Also passive copper cable for 5-10m reach (no optics required) Page 12 © 2009 Extreme Networks Inc. All rights reserved.

13. What is the Summit ® X650?  Two Models  24-port 10GBASE-T  24-port 10GBASE-X SFP+  Versatile Interface Module (VIM) slot  40G SummitStack™ (Default)  8-port SFP+ and SummitStack (Option)  256Gbps stack and 40Gbps SummitStack5 (Option)  512Gbps SummitStack7 (Option)  ExtremeXOS ® Management enhancements:  USB ports for software/config up/download  Two out-of-band management ports VIM Slot SummitStack Redundant AC/DC PSU Front 10GbE ports Out-of-band management USB Console 4-port Gig SFP Removable Fan Page 13 © 2009 Extreme Networks Inc. All rights reserved.

14. Versatile Interface Modules Delivering Architectural Flexibility VIM1-SummitStack™ (Standard) 40Gbps SummitStack 4-port 1Gbps SFP VIM1-10G8X 40Gbps SummitStack 8-port 10Gbps SFP+ VIM1-SummitStack256 256Gbps Stack performance 2:1 oversubscription with two X650s 4-port 1Gpbs SFP VIM1-SummitStack512 512Gbps Stack performance Non-Blocking with two X650s Page 14 © 2009 Extreme Networks Inc. All rights reserved.

15. New Software Features Page 15 ExtremeXOS ® 12.3  Low-Latency Switching Target Deployment: Performance-oriented deployment like HPCC and financial environments ~2µsec of latency for local switching  Virtual Routers Target deployment: Large data centers, hosted data centers, cloud environments 8 VR per physical switch  VMotion support Target deployment: Virtualized data centers Network parameters move with the virtual server  Egress ACL Target deployment: All networks Enables network administrators to apply ACLs on egress port © 2009 Extreme Networks Inc. All rights reserved.

16. 10GBASE-T Ecosystem Intel’s New 10GBASE-T Server Adapter  Unmatched 10GBASE-T Feature Set…  Dual Speed (1G / 10G)  Up to 100 meter reach on CAT 6a  55 meter reach on CAT 6  Meets the PCIe Power Specification  Industry Leading 10GbE Solution  Designed for Multi-core Processors  Multiple Queues  MSI-X Support  Optimized for Virtualization  VMDq supported in VMware ESX 3.5  Unified Networking  Enhanced Ethernet  Fiber Channel over Ethernet (FCoE)  iSCSI Remote Boot New! Page 16 © 2009 Extreme Networks Inc. All rights reserved.

17. 10GBASE-T Ecosystem Intel’s Interoperability Test Lab (X-Lab)  Industry leading interoperability test lab  Three interoperability events in 2007 – 2008  Hosted leading 10GBT PHY and switch vendors for interoperability testing sessions Page 17 © 2009 Extreme Networks Inc. All rights reserved.

18. Benefits of 10 GbE vs GbE Page 18 © 2009 Extreme Networks, Inc. All rights reserved. 10GbE (SFP+) To backbone 10GBASE-T Gigabit Server Rack Summit X450a 10Gigabit Server Rack 10 * 1000BASE-T Summit X650 10GbE (SFP+) To backbone Cost Power Volume 100 70 100 4 RU 1 RU 58

19. Conclusion Page 19 © 2009 Extreme Networks, Inc. All rights reserved.  10 GbE is available & affordable for today's datacenter  Copper is the lowest cost option in the data center  Allows smooth migration re-using existing RJ-45 cabling technology  Solid partnering between leading 10GBASE-T Vendors Want to know more on 10GBASE-T? Please visit our booth and see the real product! Want to know more on 10GBASE-T? Please visit our booth and see the real product!

20. © 2009 Extreme Networks Inc. All rights reserved.

21. Thank You Page 21