Information-Centric Networking & the Ψ Architecture. George C. Polyzos. ICN talk Outline. Introduction, motivation, overview The Pub/Sub Internet ( Ψ ) Architecture pub-sub, rendezvous i dentifiers forwarding/ LIPSIN p rototypes, testbeds , and evaluation S ecurity aspects
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Information-Centric Networking& the Ψ Architecture
George C. Polyzos
the current Internet
… started decades earlier
the Future Internet
10-15 years in the future
tussle resolution at or near run-time
wireline and wireless
an internetworked pub/sub architecture
“A Survey of
Information-Centric Networking Research,” forthcoming
& in any order
Rendezvous: Matchespublications with subscriptions & initializes the forwarding process
Topology: Monitors the network and it creates information delivery paths
Forwarding: Implements information forwarding
N. Fotiou, D. Trossen, G.C. Polyzos, “Illustrating a Publish-Subscribe Internet Architecture,” Telecommunication Systems, Springer, vol. 52, no. 3, pp. 233-245, 2012 (Special Issue on ‘Future Internet Services and Architectures: Trends and Visions).
G. Xylomenos, et al., “Caching and Mobility Support in a Publish-Subscribe Internet Architecture,” IEEE Communications Magazine, feature topic on ‘Information-Centric Networking,’ vol. 50, no. 7, pp. 52-58, July 2012.
Needed to implement the
3 basic functions:
Rendezvous, Topology& Forwarding(RTF)
The bubble concept is akin to the current layering model
The basic building block of functionality at all levels
to Global Internetwork
Bubbles offer availability and extensibility through the recursive execution of basic functions
P. Jokela, et al., “LIPSIN: Line Speed Publish/ Subscribe Inter-networking,” Proc. ACM SIGCOMM 2009.
D. Trossen and G. Parisis, “Designing and realizing an information-centric internet,” IEEE Communications Magazine, vol. 50, July 2012. - https://github.com/fp7-pursuit/blackadder
publications should not be revealedto unauthorized subscribers
user subscriptions should be kept secret
N. Fotiou, G. Marias, G.C. Polyzos, “Access Control Enforcement Delegation for Information-Centric Networking Architectures,” Proc. ACM SIGCOMM ICN, August 2012.
May give a location hint, denote the principal/owner
Associated with an access control policy
Handled by a (set of ) dedicated network node(s)
Identifies uniquely the information object (globally or within the prefix)
Define access control policy: who can advertise, who can subscribe
A subscriber has properly authenticated himself and requests item X
Bubbles support mobility as well as location privacy
N. Fotiou, K.V. Katsaros G.C. Polyzos,
M. Särelä, D. Trossen, G. Xylomenos,
“Handling Mobility in Future Publish-Subscribe Information-Centric Networks,” Telecommunication Systems, Springer,
Special Issue on ‘Mobility Management in the Future Internet,’ to appear.
N. Fotiou, G. Marias, G.C. Polyzos, “Information Ranking in Content-Centric Networks,” Proc. Future Network & Mobile Summit, Florence, Italy, June 2010.
G. Xylomenos et al., “Caching and Mobility Support in a Publish-Subscribe Internet Architecture,” IEEE Communications Magazine, July 2012.
X. Vasilakoset al.“Proactive Selective Neighbor Caching for enhancing Mobility Support in Information-Centric Networks,” Proc. ACM SIGCOMM ICN, August 2012.
Motive: Multimedia over Ψ
“YouTube” a la Ψ …
only native Ψ
Basic Components of the application:
Publisher: the owner of the video
Subscriber: the user that seeks to view the video
We tried different applications
Publish a video or a directory with multiple videos
Define the scope for the video she uploads to the network
Currently done via local exchange of video knowledge
Subscribe to a Video
Search for the desirable videousing the name of the video
Currently done via local exchange of information
Subscribe to its PSI-level identifiers
Play the video while downloading
Local UDP Socket
Local UDP Socket
Send updated dataas datagrams
Receive datagramsinto a publication buffer
Publish new versionswith same RId
Subscribe to RId andlisten to updates
NOTE: The publisher knows the subscriber set for this RId, sends the metadata directly to the subscribers; no rendezvous. Subscriber with metadata for a new version, subscribes to the corresponding data chunks.
Compute minimum cost (Steiner) trees for multicast delivery
C. Tsilopoulos et al. “Efficient Real-time Information Delivery in Future Internet Publish-Subscribe Networks,” Proc. IEEE ICNC, San Diego, CA, January 2013.
Ph.D. Dissertation by Konstantinos Katsaros
K.V. Katsaros, G. Xylomenos, G.C. Polyzos, “MultiCache: an Overlay Architecture for Information-Centric Networking,” Computer Networks,vol. 55, no. 4, pp. 936-947,Special Issue on ‘Architectures and Protocols for the Future Internet,’March 2011.
# of ICN adopters
Fast ICN adoption
feasibility & business viability
of the integration of SatCom
with terrestrial ICN architectures
Routing, Mobility Support, In-network Caching
Information-Centric Networking & the Ψ Architecture
George C. Polyzos
Faculty: V.A. Siris, G. Xylomenos, G. Marias
PostDocs: C.N. Ververidis, K.V. Katsaros, P. Frangoudis
Doctoral cand.:N. Fotiou, C. Tsilopoulos, X. Vasilakos, C. Stais, I. Thomas
Smart Transport M2M use case