NOVI: Networking innovations Over
Virtualized Infrastructures
STREP Project No. 257867, Call 5 – FIRE
Prof. Vasilis Maglaris (NETMODE/NTUA)
Dr. Chrysa Papagianni (NETMODE/NTUA)
NOVI’s Objectives
• NOVI targets innovative research in a bottom-up approach,
addressing a critical area in FI services: How FI users securely
share a multi-domain networking substrate.
• NOVI builds a set of algorithms, methods and services for
control and management of federated virtualized
Provide experimenters the ability to request, reserve, use and
update a basket of virtualized resources in a federated
environment, tailored to their needs.
NOVI’s Objectives
The Consortium
National Technical University of Athens - NTUA (Greece)
Martel GmBH (Switzerland)
Université Pierre & Marie Curie - UPMC (France)
Consortium GARR (Italy)
Universiteit van Amsterdam - UvA (Netherlands)
Fundació i2CAT (Spain)
DFN Verein (Germany)
Institut National de Recherche en Informatique et en Automatique INRIA (France)
9. Eötvös Loránd Tudományegyetem - ELTE (Hungary)
10. Poznan Supercomputing and Networking Center - PSNC (Poland)
11. Cisco Systems International B. V. (Netherlands)
12. Fraunhofer - Gesellschaft zur Förderung der angewandten Forschung e.V.
13. Universitat Politècnica de Catalunya – UPC (Spain)
NOVI’s Technical Approach
• Design and implement a modular data, control and
management plane architecture as an integrated prototype
– An ontology-based Information Model capturing the abstractions of virtualized
resources and services across different platforms.
– A framework providing interoperability of monitoring tools across federated
heterogeneous platforms.
– A semantic distributed resource discovery and mapping framework tackling the
inter-domain virtual network embedding problem.
– A policy-based management framework able to enforce intra and inter-domain
management policies.
– Data-plane stitching mechanisms towards transparent data-plane connectivity
across dissimilar platforms involved in multi-domain user-slices.
NOVI – Information Model
The NOVI Information Model
NOVI Control & Management
NOVI External Components
• Build on top of Slice Federation Architecture – SFA
– FEDERICA adapter
1. Acts like an Aggregate Manager
2. Acts as the C&M plane for FEDERICA
3. Extended RSpec ProtoGENI v2
• Prompted the development
of the Generic SFA Wrapper
by NOVI partners
Innovative NOVI Services (1/4)
– Exposes services provided by NOVI service layer e.g. combined slice
creation, slice deletion, resource cross-listing
– Feedback component: captures interactively how a user request is
being handled within NOVI service layer
• Request Handler
– Invokes appropriate operations to the corresponding SFA APIs
o Handles resource provisioning requests to the underlying platforms
o Enables information retrieval from test beds
o Translates NOVI IM to PlanetLab/FFEDERICA RSpec and vice versa.
– Triggers calls to the NSwitch service
Innovative NOVI Services (2/4)
• NSwitch Service
– Provides L2 connectivity between resources of the same slice residing
in different domains: PlanetLab (slivers) and FEDERICA (Logical
– Ethernet over GRE traffic originating from PlanetLab slivers is
translated to FEDERICA VLAN tagged traffic via the NOVI NSwitch
• Resource Information Service (RIS)
– Responsible for collecting information about available resources
across the federation and providing it to other NOVI services.
– Maintains information about slices, users and policies
– Resource discovery/ registration /reservation
Innovative NOVI Services (3/4)
• Monitoring Service
– Handles the available monitoring tools in a uniform way
– Harmonizes the measurement data that the tools provide
– Triggers substrate / slice passive or active monitoring
– Slice Monitoring API
• View instantiated slices via Platform specific GUIs
• Keep track of monitoring information
• Submit slice monitoring tasks into the NOVI federated testbeds
Innovative NOVI Services (4/4)
• Policy Service
– Policy based management system / Ponder2 policy framework.
– Policies
o Intra-domain (Access Control, Event-Condition-Action, Role Based Access
Control - RBAC)
o Inter-domain (Mission).
• Intelligent Resource Mapping Service
– Orchestrates the creation of a new combined slice
– Combined Slice Embedding; decides upon the strategy for dealing
with the various sub-problems of the mapping process (Multi-domain
Virtual Network Embedding)
– Facilitates slice re-embedding e.g., upon node failure
Publications: Selected Journals (1/2)
J. van der Ham, J. Steger, S. Laki, Y. Kryftis, V. Maglaris, C. de Laat, “The NOVI
Information Models”, Elsevier Future Generation Computer Systems (to appear).
K. Giotis, C. Argyropoulos, G. Androulidakis, D. Kalogeras, V. Maglaris, “Combining
OpenFlow and sFlow for an effective and scalable Anomaly Detection and
Mitigation mechanism on SDN Environments”, Elsevier Computer Networks (to
C. Papagianni, A. Leivadeas, S. Papavassiliou, V. Maglaris, C. Cervello-Pastor, A.
Monje, "On the Optimal Allocation of Virtual Resources in Cloud Computing
Networks," IEEE Transactions on Computers, vol. 62, no. 6, pp. 1060-1071, June,
A. Leivadeas, C. Papagianni, S. Papavassiliou, "Efficient Resource Mapping
Framework over Networked Clouds via Iterated Local Search based Request
Partitioning”, IEEE Transactions on Parallel and Distributed Systems, Vol. 24, Issue
6, pp. 1077-1086, June 2013.
Publications: Selected Journals (2/2)
W. Adianto, R. Koning, P. Grosso, A. Belloum, M. Bubak, C. de Laat, “OIntEd: online
ontology instance editor enabling a new approach to ontology development”,
Journal of Software: Practice and Experience, doi: 10.1002/spe.2141, July 2012
L. Lymberopoulos, M. Grammatikou, M. Potts, P. Grosso, A. Fekete, B. Belter, M.
Campanella and V. Maglaris, "NOVI Tools and Algorithms for Federating Virtualized
Infrastructures", Lecture Notes in Computer Science / Information Systems and
Applications (LNCS), Springer, Vol. 7281, May 2012.
NOVI Final Year Review
Athens, 18 April 2013
Publications: Selected Conferences (1/2)
C. Argyropoulos, G. Androulidakis, D. Kalogeras, B. Pietrzak, B. Belter, L.
Lymberopoulos, V. Maglaris, "Network Virtualization over Heterogeneous
Federated Infrastructures: Data Plane Connectivity", IFIP/IEEE Integrated Network
Management Symposium (IEEE IM 2013), Ghent, Belgium, May 2013
S. Vocella, A. Monje, C. Velayos, F. Farina, C. Papagianni, V. Maglaris and M.
Campanella, “Complex federated slices provisioning through SFA: The FEDERICA
and NOVI joint experience”, TERENA Networking Conference 2013, Maastricht,
Netherlands, 3-6 June 2013.
C. Pittaras, M. Ghijsen and Wibisono, W. Adianto, P. Grosso., J. van der Ham, and C.
de Laat, “ Semantic Distributed Resource Discovery for Multiple Resource
Providers”, in Proc. , In: Proceedings of the 8th International Conference on
Semantics, Knowledge and Grids, Beijing, China, Oct 22-24, 2012 (SKG)
Publications: Selected Conferences (2/2)
L. Lymberopoulos, P. Grosso, C. Papagianni, D. Kalogeras, G. Androulidakis, J. van
der Ham, C. de Laat and V. Maglaris: Managing Federations of Virtualized
Infrastructures: A Semantic-Aware Policy Based Approach. Third IEEE/IFIP
International Workshop on Management of the Future Internet (ManFI 2011),
Dublin, Ireland, May 27, 2011.
B. Hullár, S. Laki, J. Stéger, I. Csabai, and G. Vattay: SONoMA: A Service Oriented
Network Measurement Architecture, TRIDENTCOM 2011, 17-19 April 2011,
Shanghai, China (2011)
J. van der Ham, C. Papagianni, J. Steger, P. Matray, Y. Kryftis, P. Grosso and L.
Lymberopoulos, "Challenges of an Information Model for Federating Virtualized
Infrastructures", In 5th International DMTF Academic Alliance Workshop on
Systems and Virtualization Management: Standards and the Cloud, Paris 24 Oct.
NOVI Final Year Review
Athens, 18 April 2013
Need for Federated FI Testbeds: The
NOVI Experience
• Validation of NOVI innovative services over small scale
representative stitched testbeds
– FEDERICA: controlled virtualized environment (networking and
computing resources) - modeling a private virtualized Data Center
(IaaS) with commercial middleware (VMware ESXi, Juniper Junos)
– Private PlanetLab installations - modeling public cloud PaaS.
• NOVI relied on wide area networking resources (L2/L3
connectivity) and expertise from NRENs and GÉANT
• NOVI faced complex SW engineering issues for delivering a
stable distributed approach
– Building upon GENI and FIRE basic services
NOVI Final Year Review
Athens, 18 April 2013
Lessons Learned
• Greatest challenge: to orchestrate a multi-national,
multi-faceted consortium towards delivery of
innovative FI services as stable proofs of concept
• The NOVI consortium combined:
Academic excellence (Universities &Research Centers)
SW development skills (Laboratories active in FI R&D)
Operational experience (NRENs)
Industrial insight of a major vendor (Cisco)
• NOVI profited from strong links with the global FI
community (FIRE, GENI, NRENs, GÉANT, Internet2…)
NOVI Final Year Review
Athens, 18 April 2013
Thank you…

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