Future Internet

1
Future Internet

• A Sustainable Network
• Andrea Soppera Network Research Centre
• BT Innovate

2
Sustainable Platform for Innovation?
Rate of innovation
3
Catastrophe ahead ?
ISPs traffic policing inhibits new services
Soaring operational costs
Increasing customer concern with service levels
Big 5 Tier I players go under
Limited investment in Super Fast Broadband
Globality of Internet breaks down
Malicious attack crashes Internet
Internet nationalised in . .. .. .
World leaders call for action
4
Plateau ahead ?

• value flow from services to infrastructure
  broken
• lack of network RoI reduces investment in
  capacity and capabilities which in tern limits
  application innovation
• also lack of network RoI causes network operators
  to limit costs via the introduction of
  restrictive practices (DPI etc) which in tern
  also limits application innovation
• rising operational costs
• as complexity rises, operation costs also rise,
  this coupled with the lack of RoI causes ever
  greater restrictive practices for the operator
  just to maintain his margins plus a spiralling
  downwards of innovation
• limited cross-layer interaction
• limited sharing of information across the
  network/application boundary stifles innovation
  in all areas
• security, privacy trust
• often tackled separately by different parts of
  the value chain which complicates solutions,
  limits opportunities for innovation, drives up
  costs, reduces viability

5
What must be done (differently)

• Neither incremental evolution NOR Clean Slate
• But larger step size in our evolution

• Integration of research, test-beds, regulation
  and industry
• Experimental validation of technologies but also
  business and regulatory approaches!

6
Future Internet Vision A Sustainable Network
We need a new sustainable architecture -
urgently!

• Sustaining Innovation
• New applications
• New business models and industry structures
• Open for innovation
• Dynamic - MUST sustain change
• Economic Sustainability
• Value flow across the value chain
• RoI
• Lower cost of operation
• Environmental Sustainability
• Zero Carbon Internet (2)
• Sustaining Internet (ICT impact on 98)
• Socially Sustaining
• Security, Privacy Trust
• Digital divide / access
• Culture spiritual background

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Trilogy An Architecture for Change

• Main Objectives
• Develop a unified control architecture for the
  Future Internet that can adapt in a scalable,
  dynamic and robust manner to local operational
  and business requirements
• Develop and evaluate new technical solutions for
  key Internet control elements re-achability
  resource control
• Assess commercial and social control aspects,
  including internal external strategic evaluation

• Trilogy Concept

reachability mechanisms
topology discovery, reachability
load-dependent, multi-path
traffic engineering
TRILOGY
congestion control
routing policy economic drivers
re-feedback
resource control
business
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Trilogy Design Principles
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Trilogy Design Principles

• Connectionless datagrams
• Packet switching
• IP at the waist of the hourglass
• End-to-end principle

• Accountability (for usage of scarce resources)
• Efficiency (maximise utility)
• Sustainability (resilience, scalability)
• Diversity (of businesses, networks, apps, users)

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Scenario Managing P2P Traffic
Those who take most, get most. Can we afford to
have an Internet without resource control?
Allow faster light usage.
Better Customer Experience
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Future Internet A multilayer Incentive Framework

• Allowing application to have the freedom to
  innovate while networks police resource usage

Socio Economic
Accountability
Tussles
Policy
Apps/Network Policy
Transport Apps/Network Control
Packet Forwarding
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Exposure of Control Information
Economic Sustainability

• Can the network know
• the cost of carrying traffic?
• how user impacts other users/services?
• Link between cost and congestion information
  (Kelly) (e.g. Ryanair).
• Problem cannot be solved at the IP layer. Within
  the Internet Architecture this function was given
  solely to the End System

Network can monitor resource usage
Sender reveals congestion created throughout the
network
Re-Feedback
Sender re-insert congestion feedback (black)
Congestion Feedback
Router marks packet (red)
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Accountability Framework
Economic Sustainability

• Can the Network Provider
• support an accountable allocation of resources?
• associate infrastructure costs to customers?
• provide more QoS to an application?

• Lightweight Network Control Mechanism
• No resource allocation and control mechanism in
  the resources control at the ingress

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Improve Application Performance
Increasing Customer Value

• The accountability framework
• provides more freedom to application provider
• incentivise application to be more sensitive to
  resource usage
• Example Bit Torrent DNA (currently penalized by
  volume despite being friendly).
• Application best place to
• Exploit co-operative transmission
• Choose the best path for transmission (e.g. low
  cost path).
• Ensure performance but also fairness with other
  applications.
• Manage mobility and multi-homing.

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Overall Benefits
Everyone gets more freedom but the network is now
sustainable
High availability, robustness to overload and
low latency.
Increased capacity utilization for voice and
videos.
Resilience at acceptable cost with flexibility
and high utilization
SaaS Cloud Based Computing
More bandwidth for more content centric
application
Opportunity to use any spare bandwidth resource
Robustness and load balance across peering links
More privacy, security and greener equipment
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Conclusions
Sustaining Innovation
Socially Sustaining
Economic Sustainability
Environmental Sustainability