Software-Defined Networks (SDN) and Network Function Virtualization (NFV) are two technologies that have already had a deep impact on computer and telecommunication networks. Software Defined Networks (SDN) decouple network control from forwarding functions, enabling network control to become directly programmable and the underlying infrastructure to be abstracted from applications and network services. Network Functions Virtualization (NFV) is a network architecture concept where IT virtualization techniques are used to implement network node functions as building blocks that may be combined, or chained, together to create communication services. SDN and NFV make it simpler and faster to deploy and manage new services, avoiding the cost and the long time frame required to design and implement hardware-based network services. Furthermore, these technologies allow the existing hardware infrastructure to be effectively used, as services can be (re-)allocated according to requirements, resources and load.

SDN and NVF introduce numerous dependability challenges. In terms of reliability, the challenges range from the design of reliable new SDN and NFV technologies to the adaptation of classical network functions to these technologies. The effective, dependable deployment of the virtual network on the physical substrate is particularly important. In terms of security, the challenges are enormous, as SDN and NFV are meant to be the very fabric of both the Internet and private networks. Threats, privacy concerns, authentication issues, and isolation - defining a truly secure virtualized network requires work on multiple fronts.

DISN'2016: The 2nd Workshop on Dependability Issues on SDN and NFV
June 28, 2016 @ DSN'2016

13:30-15:00hs Technical Session #1: Fault-Tolerant Software Defined Networks (Chair: Michael Kreutzer)

Paper #1 Title: Ground Control to Major Faults: Towards Fault Tolerant and Adaptive SDN Control Network
Authors: Liron Schiff (Tel Aviv University, IL), Stefan Schmid (Aalborg University, DK), Marco Canini (Universite Catholique de Louvain, BE)

Paper #2 Title: Experience with 3 SDN Controllers in an Enterprise Setting
Authors: Zhiyuan Teo, Ken Birman, Robbert van Renesse (Cornell University, US)

Paper #3 Title: Availability Modelling of Software-Defined Backbone Networks
Authors: Gianfranco Nencioni, Bjarne Helvik (Norwegian University of Science and Technology), NO); Andres Gonzalez (Telenor Research, NO), Poul Heegaard (Norwegian University of Science and Technology, NO), Andrzej Kamisiński (AGH University of Science and Technology, PL)

15:00hs - 15:30hs Keynote: A Data-centric Approach for Scalability and Fault-tolerance of SDN Controllers
Speaker: Alysson Bessani
University of Lisbon, Portugal
Chair: Elias P. Duarte Jr.

16:00-17:30hs Technical Session #2: Dependable Routing in Software Defined Networks (Chair: Alysson Bessani)

Paper #1 Title: Routing-Verification-as-a-Service (RVaaS): Trustworthy Routing Despite Insecure Providers
Authors: Liron Schiff (Tel Aviv University, IL), Kashyap Thimmaraju (TU Berlin, DE), Stefan Schmid (Aalborg University, DK)

Paper #2 Title: KAR: Key-for-Any-Route, a Resilient Routing System
Authors: Rodolfo R. Gomes, Alextian B. Liberato, Cristina K. Dominicini, Moises R. N. Ribeiro, Magnos Martinello (Federal University of Espirito Santo, BR)

Paper #3 Title: NetCo: Reliable Routing With Unreliable Routers
Authors: Anja Feldmann, Philipp Heyder (TU Berlin, DE), Michael Kreutzer (Fraunhofer SIT, DE), Stefan Schmid (Aalborg University, DK & TU Berlin, DE), Jean-Pierre Seifert (TU Berlin & T-Labs Berlin, DE), Haya Shulman (Fraunhofer SIT, DE), Kashyap Thimmaraju (TU Berlin & T-Labs Berlin, DE), Michael Waidner (Fraunhofer SIT, DE), Jens Sieberg (BSI, DE)

DISN: The 2nd Workshop on Dependability Issues on SDN and NFV
June 28, 2016 @ DSN'2016

Topics include but are not limited to:

• Fault characterization in SDN and NFV
• Fault monitoring in SDN and NFV
• Dependability strategies to tolerate faults in SDN and NFV
• Virtual-Physical Network Allocation
• Dependable Network Programmability
• Security of SDN infrastructures
• Isolation & privacy in virtualized network environments
• Dependability of virtualization technologies in SDN and NFV
• Management of SDN and NFV
• Practical experience reports on dependability issues of SDN and NFV

Submissions must be up to 8 pages and must adhere to the IEEE Computer Society camera-ready 8.5″x11″ two-column camera-ready format (using a 10-point font on 12-point single-spaced leading). The templates are reproduced below for your convenience, and further details can be found here.

Submission website: https://easychair.org/conferences/?conf=disn2016

• Submission deadline : March 31, 2016
• Author notification: April 18, 2016
• Camera-ready: April 28, 2016 (this is a hard deadline!)
• Workshop: June 28, 2015

• Alysson Bessani, Universidade de Lisboa, Portugal
• Stenio Fernandes, UFPE, Brazil
• Luciano Gaspary, UFRGS, Brazil
• Lisandro Granville, UFRGS, Brazil
• Raj Jain, Washington University in St. Louis. U.S.A.
• Fernando Pedone, Università della Svizzera italiana, Switzerland
• Christian Rothenberg, Unicamp, Brazil
• Richard Schlichting, AT&T Labs, U.S.A.
• D. D. Sharma, AT&T, U.S.A.
• Paulo Verissimo, University of Luxembourg, Luxembourg
• Marko Vukolic, IBM Zurich, Switzerland
• Patrick Eugster, Purdue University, U.S.A.

• Matti Hiltunen, AT&T Labs, U.S.A., hiltunen@research.att.com
• Robert Soulé, Università della Svizzera italiana, Switzerland, robert.soule@usi.ch
• Elias P. Duarte Jr., Federal University of Parana, Brazil, elias@inf.ufpr.br