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Tapestry

Tapestry. Software Infrastructure Enabling Virtual Private Networks K. Balakrishnan, N. Chokshi, R. Huang, A. Konrad, S. Kumar, O. Sakdamnuson, B. Zhao. Presentation Outline. The Pitch The technology: Tapestry Three Potential Applications Introduction to Virtual Private Networks

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Tapestry

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  1. Tapestry Software Infrastructure Enabling Virtual Private Networks K. Balakrishnan, N. Chokshi, R. Huang, A. Konrad, S. Kumar, O. Sakdamnuson, B. Zhao

  2. Presentation Outline • The Pitch • The technology: Tapestry • Three Potential Applications • Introduction to Virtual Private Networks • Solving VPN Pains with Tapestry • Strategy

  3. The Elevator Pitch • For enterprises and homes • Who need mobile, secure, and reliable data communication • The Tapestry-enabled VPN is a software-based VPN solution • That delivers a scalable, reliable solution • Unlike existing VPN solutions • Our product provides portability, lower cost QoS and self-management capabilities

  4. Technology Motivation • Networks growing exponentially • Size, speed, reach • Issues of frequent faults, bottlenecks, and complex manageability issues • Huge potential for applications • (IF we can solve these issues) • Solution: a network layer that is • Scalable over the wide-area • Tolerant of multiple failures • Self-monitoring and optimizing

  5. Tapestry • PhD Thesis work: Ben Zhao, EECS, UCB • Wide-area network infrastructure • Software components overlaid on IP • Find nearest objects given ID • Route messages to nodes and objects efficiently around faults • Intelligent software communicating with each other to collectively monitor network • Performance with minimal overhead

  6. Key Novelty • Distributed algorithms & data structures • Provide routing from A to B • Each hop gets close to B in name • E.g.: node 3459 going to node 96213459  3251  1521  0621  9621 • Numerous paths between any 2 pts • Each node keeps data proportional to Log of network size • Efficient: • Minimal overhead in storage, routing distance, and bandwidth

  7. So what…? • Wide-area application infrastructure • Easily build wide-area applications • Transparently inherent Tapestry properties • Research applications: • Bayeux: Wide-area scalable multicast • Silverback: Global-scale archival file storage

  8. Three Potential Applications • Streaming Multimedia • FreeFlow (Akamai), FastForward (Inktomi) • What we add: efficient multicast over wide-area • Victoria’s Secret Fashion Show • Electronic Automatic Content Distribution • Marimba, Pointcast, BackWeb • What we add: efficient content push to consumers • Virtual Private Networks • Nortel, Checkpoint Software • What we add: low cost, software-based QoS

  9. Most Compelling: VPNs * Data from IDC

  10. What is a VPN? • Virtual private networks provides reliable, secure and mobile data communications • Key benefits • Network managers: increases the reach of the corporate network cost efficiently • Remote users: secure access to corporate network • Corporations: secure communications via extranets to business partners

  11. Virtual Private Networks

  12. Current VPN Pains • High cost of dedicated VPN access provider • High cost of management / maintenance • Quality of Service is Expensive • PPNs have QoS, at high cost • “Cloud”-based VPNs provide no QoS

  13. The Tapestry Solution • Flexible access • Small, portable software component • Transparent to choice of location, ISP/network • Self management and maintenance • Active fault-detection and repair • Load-balancing, resilience to DoS attacks • Software-based Quality of Service • QoS guarantees without dedicated lines • Status: working simulations; finishing prototype

  14. Snapshot Result

  15. Brief Summary • Identified 3 potential Tapestry applications • Multimedia Streaming • Electronic Content Distribution • Virtual Private Networks (VPNs) • VPN application is most compelling • Larger market opportunity • Est. $2bil in 2000, $3.5bil in 2001 • Tapestry can solve pains for VPNs • So, how can we bring Tapestry to market?

  16. Strategy License the technology to VPNs Tapestry Develop own VPN product & incorporate Tapestry

  17. Strategy Evaluation

  18. Market Segment (Product) • Initial • Business type: small to medium (SMEs) • Industry: manufacturing, education, government • Expanding • Business type: large • Industry: healthcare, financial services, high-tech • Application: remote access or extranet access • New, value-added services • Network design and Consulting • Global scale applications

  19. Deployment and Pricing • Deployment Issues • Critical mass of servers necessary • Initial partnerships w/ Akamai/Inktomi • Leverage self-propagation effect • Pricing Model • Initial fee for deployment • Cost per seat

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