4/2016 o, 11/04/2016 ncisco, , San Francisc om, ocom p, Infoc hop, ksho NOM Works Eco conomic nomic In Incen centi tive ves s fo for r Dep eployin loying Local ocal-Aware ware IC ICN-Based Based Co Cont ntent ent Deli eliver very Patrick Truong, Bertrand Mathieu Orange Labs
Timeline Evolution of business models and actors relationship with ICN deployment Local-aware NDN routing architecture – use-case : Online Social Network (OSN) applications Economic Incentives for the local-aware ICN-based content delivery Conclusion 2
Evolution of business models and actors relationship with ICN deployment (1/) Current ecosystem: well installed & identified players End-users (Eyeballs) consume contents provided by CP Content Publisher: Provides content (UGC or premium) on Internet over a given geographical area (possibly defined according to distribution rights) CDN providers (can be CP: e.g.; GC) – Manages optimized content storage and delivery resources to sell scalable and quality content storage and delivery services Transit ISP – Provides transport services to CPs and access ISPs to reach Internet ( ) Access ISP – 3 Provides Internet Access service to end-users (eyeballs)
ICN Main features user r mobi bilit lity WiFi 3G multipat path multicast astin ing caching ng content ent prote tect ction ion and authenticat ication ion => Can change the delivery chain and business models (“transparent” caching, “transparent” multicasting)
Evolution of business models and actors relationship with ICN deployment (1/) Main consideration : Keep Actors and values for them , from a smooth integration and deployment of ICN, valubale for each of them => no strong opposition ICN-based content delivery, provided by CDN providers or ISP providers or both Level of contractualisation between ISP and 3rd parties Contracted CPs services Business Model 4 Business Model 3 Business Model 1 Non- Contracted CPs services ISP own services IP ICN 5
Local-aware NDN routing architecture (1/) We consider Twitter for the sake of clarity The networking behaviour is not in line with the end- users’ behaviour – Users are very frequently connected to other users in the same town or region, in short in the immediate vicinity. A majority of tweets are destined to local or close users, except for very popular accounts. – But almost all the network traffic is send to the remote servers (US Twitter servers or US/Ireland Facebook server) and all consumed tweets are retrieved from the remote servers What can we do to optimize the delivery of contents, more in line with local users relationships ? – NDN (Named Data Networking): a candidate for improvement 6
NDN-based Routing for Local-Awareness in Twitter-like Social Networks We use the NDN architecture to optimize the networking behaviour while better reflecting the local end-users behaviour Popular end-users, whose content is consumed worldwide, should have a different way of working than non-popular local end-users, whose content will be locally consumed We perform local routing between the end-users who are in the immediate vicinity. Locality is defined by network routing hop: – Two users are local if there are separated by 2 routing hops (or any other value depending on the design configuration). A centralized (SDN-based) controller allows to dynamically configure the NDN forwarding tables, based on the social interactions in the OSN: – e.g. add route in the local NDN routers if close friends/followers are on-line, remove it if not. 7
Publication of a Content For naming end-users and their contents (text messages, videos, photos, etc), we suggest the following hierarchical naming: – /Twitter/UserXXX/TweetAAA, /Twitter/UserXXX/VideoBBB We consider local network regions of 2 routing hops. /Twitter/Joe/Video10 NDN controller ller (SDN (SDN-like like archite tectu cture) Twitte ter r server Add the route to name prefix NDN forwardin ding g table /Twitter ter/J /Joe oe/ into the local l NDN FIBs (NDN DN FIB) /Twit itter/ r/Joe/ Joe/ User Alice NDN FIB /Twit itter/ r/Joe/ Joe/ Inform m the SDN controller ller to config igur ure e new routes User Bob Joe e publis ishes hes a cont nten ent User Walter User er Joe e is gett ettin ing g onlin ine 8
Local Routing for Retrieving Content from Local Users Local users (2 routing hops far away from Joe) will get content directly from Joe, instead from the Twitter server /Twitter/Joe/Video10 NDN controller ller (SDN (SDN-like like archite tectu cture) Twitte ter r server NDN forwardin ding g table (NDN DN FIB) /Twit itter/ r/Joe/ Joe/ Cache Inter terest est (/Twit witte ter/ r/Jo Joe/ e/Vid ideo eo10 10) NDN FIB Local user Alice ce request sts s /Twit itter/ r/Joe/ Joe/ Joe’s content Cache Joe sends content t Data back to Alic ice e User Bob User Joe is online User Walter 9 and can serve his contents
Using Twitter Server for Retrieving Content from Non-Local Users Non-local users will be served by the Twitter server /Twitter/Joe/Video10 NDN controller ller (SDN (SDN-like like archite tectu cture) Twitte ter r server Use e prefix fix /Twitt witter er to rout ute e the e NDN forwardin ding g table Inter terest est to the e serv rver (NDN DN FIB) /Twit itter/ r/Joe/ Joe/ User Alice NDN FIB /Twit itter/ r/Joe/ Joe/ Inter terest est (/Twit witte ter/ r/Jo Joe/ e/Vid ideo eo10 10) Non Non-loc ocal al user Bob requests Joe’s content User Walter User Joe is online 10 and can serve his contents
Economic Incentives for the local-aware ICN- based content delivery Estimate the economic viability for each involved stakeholder when adopting our locality-aware and NDN-based routing scheme for delivering content Compare current delivery chain vs local-aware ICN-based delivery – with involved actors : – Service Providers – Delivery Service Provider provider) – Access ISP Variables : – the ratio of users ( e ) which can retrieve content from local users – the probability of cache hit (p) 11
Economic Incentives for the local-aware ICN- based content delivery Exemple : Cost for Service Provider : – With local-aware ICN-based delivery COSN = [(1-p].D.(1- e ).F .W.T] network cost to serve cache miss + [(1-p].D.(1- e ).P .T] processing cost for handling cache miss + [g p ]. D.F .T] cost for delivering content from caches + [t f.T] transaction costs for outsourcing delivery + [p . D. tu .T] 12
Economic Incentives for the local-aware ICN- based content delivery Exemple : Cost for Access ISP – With local-aware ICN-based delivery COSN = [(1-p].D.(1- e ).F .B.T] transport cost for cache misses + [(1-p].D.(1- e ).F .X E->T .T] transit cost for cache misses + [ S E .F .T] storage cost + [ P E .D.T] processing cost + [p . D.K E .T] Accouting and billing cost + d additional cost the ratio of users ( e ) the probability of cache hit (p) 13
Conclusion ICN can be deployed if actors can keep some of their business We envision a progressive deployment of ICN, with relationships between actors to set up For a network point of view (network traffic), a local-aware delivery is interesting The economic evaluation we performed proved the interest of a local-aware NDN-based delivery architecture for most of the involved actors. 14
Thanks. Q&A
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