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On consistent updates in software defined networks

Ratul Mahajan, Roger Wattenhofer
2013 Proceedings of the Twelfth ACM Workshop on Hot Topics in Networks - HotNets-XII  
For one basic consistency property-no packet should loop-we develop an update algorithm that has provably minimal dependency structure.  ...  We also sketch a general architecture for consistent updates that separates the twin concerns of consistency and efficiency.  ...  A straightforward possibility is for the same software module (controller) to decide on new rules and then micro manage the update process in a way that maintains consistency.  ... 
doi:10.1145/2535771.2535791 dblp:conf/hotnets/MahajanW13 fatcat:lgircsjkdbhsrj236wzkckt5oe

Consistent updates for software-defined networks

Mark Reitblatt, Nate Foster, Jennifer Rexford, David Walker
2011 Proceedings of the 10th ACM Workshop on Hot Topics in Networks - HotNets '11  
Software-Defined Networking (SDN) provides an exciting opportunity to do better.  ...  However, a piecemeal attack on this fundamental problem, while pragmatic in the short term, is unlikely to lead to significant long-term progress.  ...  Our work is supported in part by ONR grant N00014-09-1-0770 and NSF grants CNS-1111698 and CNS-1111520.  ... 
doi:10.1145/2070562.2070569 dblp:conf/hotnets/ReitblattFRW11 fatcat:2s4pptr26rbm7e4b2qzvkmilli

Consistent updates in software defined networks: On dependencies, loop freedom, and blackholes

Klaus-Tycho Forster, Ratul Mahajan, Roger Wattenhofer
2016 2016 IFIP Networking Conference (IFIP Networking) and Workshops  
We consider the problem of finding efficient methods to update forwarding rules in Software Defined Networks (SDNs).  ...  We also consider the basic case of just one destination in the network and show that the greedy approach can be nearly arbitrarily bad.  ...  Klaus-Tycho Förster was supported in part by Microsoft Research.  ... 
doi:10.1109/ifipnetworking.2016.7497232 dblp:conf/networking/ForsterMW16 fatcat:vtucrmyixnekfhtiijj5tiiuny

Incremental consistent updates

Naga Praveen Katta, Jennifer Rexford, David Walker
2013 Proceedings of the second ACM SIGCOMM workshop on Hot topics in software defined networking - HotSDN '13  
A consistent update installs a new packet-forwarding policy across the switches of a software-defined network in place of an old policy.  ...  While doing so, such an update guarantees that every packet entering the network either obeys the old policy or the new one, but not some combination of the two.  ...  We would also like to thank Mark Reitblatt and Nate Foster for sharing parts of their implementation of consistent updates.  ... 
doi:10.1145/2491185.2491191 dblp:conf/sigcomm/KattaRW13 fatcat:nfgyhrhsfbc3ncpz64vhknthky

Time-based updates in software defined networks

Tal Mizrahi, Yoram Moses
2013 Proceedings of the second ACM SIGCOMM workshop on Hot topics in software defined networking - HotSDN '13  
This challenge is especially critical in Software Defined Networks, where the control plane is managed by a logically centralized controller, and configuration updates occur frequently.  ...  In this paper we discuss the tradeoff between maintaining consistency during configuration updates and the update performance.  ...  INTRODUCTION The Configuration Update Problem. Software Defined Networks (SDN) define a centralized architecture, where the control plane is managed by a controller.  ... 
doi:10.1145/2491185.2491214 dblp:conf/sigcomm/MizrahiM13 fatcat:gldkrxlogbfkppkx5bj72kz6mu

Guest Editors' Introduction: Special Issue on Management of Softwarized Networks

Filip De Turck, Prosper Chemouil, Raouf Boutaba, Minlan Yu, Christian Esteve Rothenberg, Kohei Shiomoto
2016 IEEE Transactions on Network and Service Management  
In "Consistent Network Management for Software-defined Networking based Multicast", Kohler et al.  ...  [17] introduce a management architecture allowing for an appropriate selection of an update mechanism in software-defined networks and its parameters based on expected inconsistency effects.  ...  In this research area, he is involved in several research projects with industry and academia, serves as the Vice Chair of the IEEE Technical Committee on Network Operations and Management, the Chair of  ... 
doi:10.1109/tnsm.2016.2598093 fatcat:f37wjaibmjf2nlggmsjpylh2sa

Database Support for PC Software Configuration and Version Management in the START Network [chapter]

S. Auerbach, A. Buchmann, I. Buchmann, T. Kudraß, K. Lange, C. Lier, K. Weidmann
1995 Information and Communication Technologies in Tourism  
management system that is used to control the remote update of software on the point of sale PCs.  ...  Configuration management problems are discussed in the context of one of Europe's largest wide area networks, the START travel services network.  ...  data kept on the central ASP suffers both in consistency and timeliness.  ... 
doi:10.1007/978-3-7091-7596-5_24 fatcat:j5hvxdq4y5a3tadw26wxaz4ope

Timing in Software-Defined and Centrally-Managed Networks [article]

Tal Mizrahi, Yoram Moses
2019 arXiv   pre-print
The work described in this paper explores the use of time and synchronized clocks in centrally-managed and Software Defined Networks (SDNs).  ...  One of the main goals of this work is to analyze use cases in which explicit use of time is beneficial.  ...  Related Work This paper summarizes "Using Time in Software Defined Networks", a PhD dissertation [2] that was submitted to the Technion in 2016.  ... 
arXiv:1904.06676v1 fatcat:njot7fjc7bbidhgfu3mz2eyoia

Towards Transiently Secure Updates in Asynchronous SDNs

Apoorv Shukla, Stefan Schmid, Anja Feldmann, Arne Ludwig, Szymon Dudycz, Andre Schuetze
2016 Proceedings of the 2016 conference on ACM SIGCOMM 2016 Conference - SIGCOMM '16  
Towards Transiently Secure Updates in Asynchronous SDNs Apoorv Shukla ABSTRACT Software-Defined Networks (SDNs) promise to overcome the often complex and error-prone operation of traditional computer networks  ...  SIGCOMM '16 Florianópolis, Brazil INTRODUCTION While Software-Defined Network (SDN) outsources and consolidates the control to a logically centralized software controller, SDN still needs to be regarded  ... 
doi:10.1145/2934872.2959083 dblp:conf/sigcomm/ShuklaSFLDS16 fatcat:77yvvxyptjeibbwc24v5loibta

Software transactional networking

Marco Canini, Petr Kuznetsov, Dan Levin, Stefan Schmid
2013 Proceedings of the second ACM SIGCOMM workshop on Hot topics in software defined networking - HotSDN '13  
consistently over the entire network and the update is installed in its entirety, or aborted, in which case, no packet is affected by it.  ...  Indeed, conflicts among concurrent policy updates may result in serious inconsistencies on the data plane, even when each update is installed with perpacket consistent update semantics.  ...  Acknowledgements This work was supported in part by the EU FP7 project OFELIA.  ... 
doi:10.1145/2491185.2491200 dblp:conf/sigcomm/CaniniKLS13 fatcat:3r3qevuzavgmxhbijuzo7kfyvy

AdamMC: A Model Checker for Petri Nets with Transits against Flow-LTL [chapter]

Bernd Finkbeiner, Manuel Gieseking, Jesko Hecking-Harbusch, Ernst-Rüdiger Olderog
2020 Lecture Notes in Computer Science  
We describe how AdamMC can automatically encode concurrent updates of software-defined networks as Petri nets with transits and how common network specifications can be expressed in Flow-LTL.  ...  In software-defined networks, it is far more convenient to specify the correct behavior of packets than the global behavior of the entire network.  ...  Solutions for correctness of updates of software-defined networks include consistent updates [7, 28] , dynamic scheduling [17] , and incremental updates [18] .  ... 
doi:10.1007/978-3-030-53291-8_5 fatcat:tsfpeynd2ncz7hhmodbdl5ohoi

On scaling software-Defined Networking in wide-area networks

Shuhao Liu, Baochun Li
2015 Tsinghua Science and Technology  
In this paper, we survey the mechanisms that can be used to address the scalability issues in software-defined wide-area networks.  ...  As the technology matures, research in both industry and academia has designed a considerable number of tools to scale software-defined networks, in preparation for the wide deployment in wide-area networks  ...  At the same time, label switching happens to bypass the consistency issues of network update in a large scale software-defined WAN.  ... 
doi:10.1109/tst.2015.7128934 fatcat:3tkmkfyqvzfybejgqzl7mfzzzu

A mixed-critical consistent update algorithm in software defined time-triggered ethernet using time window

Jun Lu, Huagang Xiong, Feng He, Zhong Zheng, Haoruo Li
2020 IEEE Access  
Software Defined Networking (SDN) presents a tremendous opportunity for developing abstract management of network updates. However, network updates introduce challenges in terms of consistency.  ...  More specifically, consistent update is defined and some basic update algorithms are described. And then a packetbased network model is built to describe network resources.  ...  The colleagues who provided insight and stimulating discussions that greatly assisted in the preparation of this paper.  ... 
doi:10.1109/access.2020.2984749 fatcat:fnneduymajbhjlxvw2c6kgmla4

Software Management of Heterogeneous Execution Platforms

André Bottaro, Levent Gürgen, Maxime Vincent, François-Gaël Ottogalli, Stéphane Seyvoz
2009 2009 International Conference on Advanced Information Networking and Applications Workshops  
Time and cost efficient software maintenance is promoted to remotely manage devices distributed in the home network.  ...  This paper defines a generic software management model, Genex, which provides a homogeneous view over these different types of platforms.  ...  The model consists of two parts: software units with state diagrams, and a set of generic management operations on the software.  ... 
doi:10.1109/waina.2009.188 dblp:conf/aina/BottaroGVOS09 fatcat:kic63x2v65fulocynfvtfffsxi

Simulation-based Evaluation of a Synchronous Transaction Model for Time-Sensitive Software-Defined Networks [article]

Tobias Haugg, Mohammad Fazel Soltani, Timo Häckel, Philipp Meyer, Franz Korf, Thomas C. Schmidt
2021 arXiv   pre-print
Software-Defined Networking (SDN) moves the control plane of network devices to the SDN controller, making these networks programmable.  ...  The Time-Sensitive Networking (TSN) collection of standards enables this in real-time environments like vehicle on-board networks.  ...  On the other hand, Software-Defined Networking (SDN) [9] has revolutionized campus and data center networks.  ... 
arXiv:2110.00236v2 fatcat:72zmqbs6tfhnnomykd7cdrocwu
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