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Transcript of Fia aalborg-statement-iopapafi-v0.5
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.