© 2005 Extreme Networks, Inc. All Rights Reserved Extreme Networks Open Converged Networks

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 2 Extreme Networks : A brief introduction The network of the future Networking : The Open Standards way Extreme technology and differentiation Agenda

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 3 Extreme Networks Created layer 3 switching market Today: 10 Million+ ports shipped Recipient of numerous industry awards The owner of many networking patents Strong and continuous investment in R&D

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 4 “Ethernet Everywhere” Data/Voice/Video over In a world where … Our Vision Everything Connects to the Network Wired and Wireless Ethernet Fast and Secure

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 5 Design philosophy Monolithic Closed Proprietary One Vendor Approach Their architecture Modular Open Standards-Based Multi-Vendor Approach YOUR architecture

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 6 The world of Networking The Enterprise challenges and opportunities Manage security, reliability and compliance policies rather than elements. Enable deployment of heterogeneous solutions; empower choice. Protect investment; maximize return; right-size cost of ownership. Release the power of the most pervasive component of the infrastructure - the network. Sustaining and extending differentiation in a world where IT service is perceived as commoditizing.

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 7 The world of Networking Focus area : Security A heavily ‘componentized’ market place : Management / deployment complexity increases. Protection is limited : capacity, scalability, scope. Results are erratic - far from ‘a sure thing’. Security was an insurance-policy - now it’s essential Declaration of vulnerability to the appearance of a virus/worm is a rapidly shrinking window. Viral propagation rates are increasing rapidly. The “Day-Zero” Enterprise exposure is growing fast.

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 8 The world of Networking Focus area : Convergence Converged networking is by design, not luck All information isn’t created equal Telecom infrastructure of the past has set expectations for the future. Wireless is happening; with or without IT sponsorship Uncontrolled (… un-secure) deployments are easy to execute Wireless installation and operational demands are more complex and demanding than first expected.

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 9 The Value of “Open” Organizational agility & flexibility Build to YOUR architecture, not the vendors Deploy solution depth YOUR users need; not just solution breadth Change vendors when YOU want Organizational empowerment Allow competitive negotiations; get more for YOUR $ YOU choose best-in-breed -v- best-in-brand

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 10 Proof points : The Open solution Focus area : Security Leverage switch-fabric power : Open / Standards-based control of the network Policy based behavioral monitoring Dynamic ‘access control lists’ Delivering unique scalability for secure networking : Virtually in-line, physically out-of-line High availability and performance Open standards communications to ‘VSR’s

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 11 Proof points : The Open solution Focus area : Convergence A network ‘aware’ of convergence Support for new open protocols - LLDP, etc Integration with voice-partner management solutions Industry leading link-failure recovery Centralized management of distributed wireless networking : Ease-of-deployment and management of local and remote WLAN/WAPs. Single location for all wireless policy management

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 12 However …. “I’m in a world I know; it works for me” As did the mainframes … and 3270 … Satisfactory today is restrictive tomorrow Plan for the unseen, build for the unknown “Change is difficult; it’s costly” TCO of open environments are proven to be lower Transition is the open-vendor’s core competency Executed many times; proven results

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 13 Our technology

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 14 ExtremeWare XOS Industry’s first modular switching operating system : High availability : module “isolation” An open platform for collaboration with partners : UNIX based system Modular extension and scaling Open standards communications : XML Leverages the power of the hardware : Virtual switching intelligence Industry inflection-point technology : ClearFlow

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 15 Technology differentiation “Quality of Service” The patent authors: Steve Haddock, Herb Schneider, Mike Yip Leading the way with hierarchical QoS since 1999 Native power and flexibility 4 rd generation ASICs Unmatched speed, flexibility and intelligence Dynamic programmability Enterprise solutions developed for the demanding Service Provider marketplace High availability; by design

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 16 Comprehensive Portfolio Consistent User Interface and Management Across all Platforms Performance and Features Scalability Summit Edge Switches Summit Edge & Aggregation Switches Alpine BlackDiamond 6800 BlackDiamond 10K BlackDiamond 8810 BlackDiamond 12804R BlackDiamond 12804C Stacking

© 2005 Extreme Networks, Inc. All Rights Reserved Extreme IT / Extreme Networks Confidential Page 17 Summary Open standards Puts you back in the driving seat, rather than the passenger’s seat Enables IT differentiation Provides flexibility; an essential feature of networking going into 2010 Extreme Networks The author of “Ethernet Everywhere” Releasing the power of networking Changing the game

© 2005 Extreme Networks, Inc. All Rights Reserved Open: The power to choose your future

© 2005 Extreme Networks, Inc. All Rights Reserved The Extreme team today : Paul Hooper, CIO, (408) Mark Slater, Technical Director, (408) Colin Rudolph, Account Exec, (650) Eileen Brooker, Regional Sales Director, (949) Jeffry Lynch, Sales Engineer, (916) Tim Kodyra, National Public Sector Specialist, (217)

© 2005 Extreme Networks, Inc. All Rights Reserved Thank You Extreme Networks The Leader in Open Converged Networks Extreme Networks, the Extreme Networks Logo, AccessAdapt, EPICenter, ExtremeWare, ExtremeWare XOS, and Unified Access Architecture are trademarks of Extreme Networks. All other trademarks, and particularly logos, are owned by their respective owners. All rights reserved.