Hon Kit LAM

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The New World of Content Delivery Networks (CDN)
Hon Kit LAM Senior Director IP Product
Management and Development
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Tata Group Financial Stability IT Capabilities

• 140-year old largest private sector group
• 62.5 billion in revenues, 61 of business from
  outside of India
• 350,000 employees
• 3 of Indias Gross Domestic Product (GDP)
• Conglomerate comprising 93 operating companies
• Acquired VSNL in February 2002
• TATA Steel acquired Corus for 23 billion
• TATA Motors acquired Jaguar Land Rover
• Tata Consultancy Services (TCS)
• Asias largest software systems integration
  services company
• 33 countries across 5 continent

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Tata Communications History
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Tata Communications Leadership Landscape

• State-of-the-art Infrastructure
• 200,000 route km global network
• 300 points of presence (PoPs)
• 20 terabit submarine capacity
• 1M sq. feet of data center space

• Customers
• 1,500 global carriers
• 600 mobile operators
• Fortune 1000 of India
• 5,000 SMEs in India
• 500,000 Internet and broadband subs

• Industry Leader
• 1 global wholesale voice
• 1 global submarine cable capacity
• 1 intnl. long distance services in India
• 1 enterprise data services in India
• 1 Internet services in India

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Global Transmission Largest Submarine Cable
Network in the world
Ownership of one the most advanced, seamless
global transmission networks

• OWN
• TGN-Atlantic
• TGN Western Europe
• TGN Northern Europe
• TGN-Pacific
• TGN-India Asia

• CONSORTIUM
• SMW-3
• SMW-4
• SAFE/SAT-3
• APCN-2

• NEW BUILDS
• TGN-Eurasia
• TGN-Intra Asia
• IMEWE
• SEACOM
• Other Africa

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Round the World Global IP Infrastructure
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Do what you do best..
Focus on your Content strategy Create,
Aggregate and Capitalize on your digital and
interactive Content
Our business
is to ensure you spend more time on your content
and less time worrying about its distribution

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The World has Changed

• Global communications is changing the world of
  content delivery
• Emergence of new content exchange and consumption
  patterns
• Explosion of media, entertainment, gaming and
  other industries

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Your challenges to Deliver Content

• You need the technical means to deliver a new
  user experience without any technical or cost
  barriers
• A global platform capable of delivering a vast
  array of content like live broadcasts,
  high-definition video, gaming, software updates,
  etc without typical Internet congestion to take
  your business to the next level.
• A high quality platform ready to provide
  immediate and uninterrupted delivery of your
  content
• A platform that broadens your visibility and
  reach, both geographically and in targeted
  business segments
• A platform that delivers an unparalleled quality
  of service in delivering your content to your
  end-users swiftly, securely and seamlessly
• IP protection through built-in Digital Rights
  Management (DRM) capabilities
• Catering to mobile users

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Emerging Service Provider Business Models for CDN

• Applications in media, web properties, software,
  gaming and others yet to be defined
• New opportunities for retail service providers to
  bundle content with connectivity
• ROI models are changing in the short and long
  term

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Underlying DriverComplexity of Video
Applications will continue to increase

• SITUATION
• Application Complexity Will Increase
• Video is the limiting factor because of its
  intensity
• Larger file sizes and more interactive is
  inevitable
• Legacy content delivery solutions are suboptimal
  and general purpose

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Tata Communications CDN Distributed Origin
Network

• A Better Design BUILT FOR VIDEO
• Replicated Origins
• Fault tolerance
• Guaranteed QoS
• Less chatter with BitCast
• Anycast- Network addressing and routing scheme
• Data-Multicast-Replication Technology
• Stream Tracking-Tracks and rebuilds connections
• Concentrated distributed nodes at major peering
  points
• End-to-end control over platform
• Carrier friendly

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Tata Comms Vision for Global CDNsHigh
performance delivery enabled by Tata
Communications Content Delivery Network CDN)
Unique Architecture Global Tier1 IP Network
Distributed Origin architecture

• Our CDN is based on a distributed origin
  architecture which differs from most CDNs, which
  are based on Cached Edge networks.
• Unlike competitors who rely on multiple IP
  Transit providers, our CDN is built upon a wholly
  owned, global Tier 1 IP network for world-class
  resiliency and performance.
• This design takes advantage of the substantial
  transit peering capability of todays large
  Tier 1 networks, moving the content from a fewer
  high capacity origin servers clustered regionally
  to the end-user providing a performance
  advantage.
• The fact that every node within a regional
  cluster is a mirror of the other mean that all
  the content is always available on each node.
  This offers an excellent level of redundancy
  while totally eliminating cache misses.

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Limitations on Traditional CDN Model Caching
Proxy
Solution Limitations
Operational Limitations

• Thousands of servers required for adequate
  coverage
• Complex Routing and Management
• High management, networking, and Co-location
  costs
• Edge networks are difficult to upgrade

• Long start up time due to multi-stage DNS
  lookup and proxy
• Cache means not 100 content availability
• - Cache misses Limited and fixed cache
  capacity
• - Performance degradation for large files
  and increasing content
• Inconsistent QOS
• Scalability issues
• Highly susceptible to denial of service attacks
  (DDoS)

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Direct Path Routing vs Proxy Cache

• Users request goes through local ISP directly
  to the CDN Distributed Origin
• File is retrieved and sent through local ISP to
  User

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LiveBroadcast

• Whether it's breaking news, sports events,
  concerts, conferences, or live television,
  broadcast it LIVE over the internet.
• The first carrier-grade high quality, flash-based
  streaming service for broadcasting live content
  over the Internet
• Flash-based streaming service designed
  specifically to address the needs of delivering
  live video broadcasts online by minimizing
  latency and packet loss to create a superior
  experience.
• Set-up is simple and there's no expensive
  hardware. Content loads quickly, users can visit
  any point in the streamed broadcast, the stream
  is optimized for each users connection.
• No client download required.

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Customer Examples