Information Flows in an Economic Aware Context

Ioanna Papafili, http://nes.aueb.gr

Network Economics and Services Lab

Athens University of Economics and Business

Simple Economic Management Approaches of Overlay Traffic in Heterogeneous Internet Topologies European Seventh Framework STREP FP7-2007-ICT-216259 http://www.smoothit.org

Session on Novel Networking and

Relationship with Applications –

The Value of Information Flows

between Application and Networks

FIA Aalborg, May 10, 2012

UZH, DoCoMo, TUD, AUEB, PrimeTel, AGH, ICOM, UniWue, TID

The SmoothIT project - Economic Traffic Management (ETM)

• Context: SmoothIT focused on overlay application and p2p

– Addressed the Information Asymmetry problem

• Concept: ETM employs mechanisms addressing the incentives of players

– They are compatible to users’ benefit, but also function complementarily to the self-organization of the overlay

• Objective: To bridge the information gap between overlay and underlay and to optimize overlay traffic mutually beneficially for all: ISP, user, ASP

– TripleWin: the system operates in an equilibrium point

– Traditional traffic optimization would aim at a global optimum of a single combined optimization metric

• Results: ETM mechanisms indeed lead the system to desirable equilibria, although a different mechanism can be appropriate in each case

– Are highly distributed and scalable

– Stimulate information sharing among players

• Next steps: Handle new types of overlay traffic stemming from

– Social networks, cloud applications, mobile applications

7/2/2012 2

The SmoothIT Information Service (SIS)

• Each SIS component can convey information between overlay and underlay

• E.g. overlay components interact with SIS to select “better” peers

• The application client can ignore SIS recommendations if not beneficial!

3

AS 65508

AS 65504

AS 65509

AS 65510

P1 P2 P3

P4 P5 P6

P9

P7 P8 IP/MPLS transit

New

Peer

SIS

SIS

SIS

SIS

Candidates: P1,P2,…,P9

Sorted List: P1,P2,P3,P7,… SIS: SmoothIT Information Service

7/2/2012

SIS-compatible/-enabled ETM mechanisms

• BGP-based Locality Promotion

– Neighbors list provided by peer requesting ‘advice’

– A server provides proximity-related information/’advice’

• Insertion of ISP-owned Peer(s)

– Intervention of resourceful caches in the overlay, transparently or not

– Tranparent: Selected by regular peers only based on overlay criterion (e.g. T4T)

– Non-transparent: Advertised by SIS (or possibly the overlay tracker)

• Promotion of Highly Active Peer(s)

– ISP boosts regular high activity peers’ capacity

– Evaluates their behavior, e.g. large seeding time

– Incentive for regular peers to act as IoPs

• All provide freedom to peers to decide whether they will adopt them

4 7/2/2012

• Address the Information Asymmetry between layers and players

• Design for Tussle (introduced by D. D. Clark)

• Abstraction – Exposure – Collection – Assessment – Decision Making

• Aim at All-Win

Exchange of Information* *accepted as a new seed in FIArch’s document on FI Design Principles

(collaboration with the FP7 SESERV project)

underlay network

overlay network

‘advice’ - abstract network information

overlay information QoS impact

overlay optimization max profit

traffic demand

traffic matrix

traffic management min operational cost

ISP2 tier-2

ISP3 tier-3

ISP1 tier-1

transit link peering link

ISP4 tier-2

ICN

rendezvous

global rendezvous

Inter-layer

Inter-player

7/2/2012 5

Thank you for your attention!

This research has been co-financed by the European

Union (European Social Fund – ESF) and Greek national

funds through the Operational Program "Education and

Lifelong Learning" of the National Strategic Reference

Framework (NSRF) – Research Funding Program:

Heracleitus II. Investing in knowledge society through

the European Social Fund.