Tapestry

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
• Victorias 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
Application Attractiveness of Underlying Market Rationale
Multimedia Streaming Low 400 M (2000) Uncertain future demand
EACD Low 500 M (2000)Flat growth Unproven market
VPNs High 2B annual (2000), 3.5B (2001) High projected growth(home 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
Strategy Customers Competition Considerations
Licensing VPN Service Providers (Nortel, MCI-Worldcom, ATT) MIT, ATT, Microsoft Research Do not address QoS Weaker performance guarantees Lesser relative risk Limited revenue opportunities
VPN Product Enterprises ISPs VPN Service Providers (Nortel, MCI-Worldcom, ATT) Longer time to market More established competition
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