SDN Reading list

The SDN reading list has moved to; to suggest additions to the list, send email to

(compiled by Cristian Lumezanu; if you find any errors or if you know of a paper that should be listed here but isn't, send me an email)

(if you want to read only one paper in each category, read the first one; if you don’t want to read any papers, listen to Scott Shenker instead here or here)

(if you are new to SDN and want to learn about it, take Nick Feamster’s class on Coursera instead)

Towards SDN

The Future of Networking, and the Past of Protocols, Scott Shenker (video of talk at Ericsson, slides of talk at ONS'11)

The Road to SDN, Nick Feamster, Jennifer Rexford, Ellen Zegura, 2013
Ethane: Taking Control of the Enterprise, Martìn Casado, Michael J. Freedman, Justin Pettit, Jianying Luo, Nick McKeown, Scott Shenker, Sigcomm 2007
Design and Implementation of a Routing Control Platform, Matthew Caesar, Donald Caldwell, Nick Feamster, Jennifer Rexford, Aman Shaikh, Jacobus van der Merwe, NSDI 2005
A Clean Slate 4D Approach to Network Control and Management, Albert Greenberg, Gisli Hjalmtysson, David A. Maltz, Andy Myers, Jennifer Rexford, Geoffrey Xie, Hong Yan, Jibin Zhan, Hui Zhang, CCR 2005
SANE: A Protection Architecture for Enterprise Networks, Martìn Casado, Tal Garfinkel, Aditya Akella, Michael J. Freedman, Dan Boneh, Nick McKeown, Scott Shenker, Usenix Security 2006
Tesseract: A 4D Network Control Plane, Hong Yan, David A. Maltz, T.S. Eugene Ng, Hemant Gogineni, Hui Zhang, Zheng Cai, NSDI 2007
The Case for Separating Routing from Routers, Nick Feamster, Hari Balakrishnan, Jennifer Rexford, Aman Shaikh, Jacobus van der Merwe, FDNA 2004
A Survey of Active Network Research, David L. Tennenhouse, Jonathan M. Smith, W. David Sincoskie, David J. Wetherall, Gary J. Minden, IEEE Communications 1997
The Tempest: A Practical Framework for Network Programmability, Jacobus E. van der Merwe, Sean Rooney, Ian Leslie, Simon Crosby, IEEE Network 1998
In VINI Veritas: Realistic and Controlled Network Experimentation, Andy Bavier, Nick Feamster, Mark Huang, Larry Peterson, Jennifer Rexford, Sigcomm 2006
IETF ForCES (Forwarding and Control Element Separation)

OpenFlow: Enabling Innovation in Campus Networks, Nick McKeown, Tom Anderson, Hari Balakrishnan, Guru Parulkar, Larry Peterson, Jennifer Rexford, Scott Shenker, Jonathan Turner, CCR 2008
What OpenFlow is (and more importantly, what it’s not), Martìn Casado
Programming Protocol-Independent Packet Processors, Pat Bosshart, Dan Daly, Martin Izzard, Nick McKeown, Jennifer Rexford, Dan Talayco, Amin Vahdat, George Varghese, David Walker

SDN Building Blocks

General Design
Fabric: A Retrospective on Evolving SDN, Martìn Casado, Teemu Koponen, Scott Shenker, Amin Tootoonchian, HotSDN 2012
The Scaling Implications of SDN, Martìn Casado
On the Scalability of Software-Defined Networking, Soheil Hassas Yaganeh, Amin Tootoonchian, Yashar Ganjali, IEEE Communications Magazine Feb 2013
A Highly Available Software Defined Fabric, Aditya Akella, Arvind Krishnamurthy, HotNets 2014
Software-Defined Networking: A Comprehensive Survey, Diego Kreutz, Fernando M.V. Ramos, Paulo Esteves Veríssimo, Christian Esteve Rothenberg, Siamak Azodolmolky, Steve Uhlig, IEEE 2015

Control plane
NOX: Towards an Operating System for Networks, Natasha Gude, Teemu Koponen, Justin Pettit, Ben Pfaff, Martìn Casado, Nick McKeown, Scott Shenker, CCR 2008
Can the Production Network Be the Testbed?, Rob Sherwood, Glen Gibb, Kok-Kiong Yap, Guido Appenzeller, Martìn Casado, Nick McKeown, Guru Parulkar, OSDI 2010
Onix: A Distributed Control Platform for Large-scale Production Networks, Teemu Koponen et al, OSDI 2010
The Beacon OpenFlow Controller, David Erickson, HotSDN 2013
Maestro: A System for Scalable OpenFlow Control, Zheng Cai, Alan L. Cox, T.S. Eugene Ng, 2011
The Controller Placement Problem, Brandon Heller, Rob Sherwood, Nick McKeown, HotSDN 2012
HyperFlow: A Distributed Control Plane for OpenFlow, Amin Tootoonchian, Yashar Ganjali, INM 2010
Exploiting Locality in Distributed SDN Control, Stefan Schmid, Jukka Suomela, HotSDN 2013
Kandoo: A Framework for Efficient and Scalable Offloading of Control Applications, Soheil Hassas Yeganeh, Yashar Ganjali, HotSDN 2012
Applying Operating System Principles to SDN Controller Design, Matthew Monaco, Oliver Michel, Eric Keller, HotNets 2013
Software Transactional Networking: Concurrent and Consistent Policy Composition, Marco Canini, Petr Kuznetsov, Dan Levin, Stefan Schmid, HotSDN 2013
The Case for Reliable Software Transactional Networking, Marco Canini, Petr Kuznetsov, Dan Levin, Stefan Schmid, 2013
Beehive: Towards a Simple Abstraction for Scalable Software-defined Networks, Soheil Hassas Yeganeh, Yashar Ganjali, HotNets 2014
Tolerating SDN Application Failures with Lego SDN, Balakrishnan Chadrasekaran, Theophilus Benson, HotNets 2014
Scotch: Elastically Scaling up SDN Control-Plane usingvSwitch based Overlay, An Wang, Yang Guo, Fang Hao, T.V. Lakshman, Songqing Chen, CoNext 2014
ONOS: Towards An Open Distributed SDN OS, Pankaj Berde, Matteo Gerola, Jonathan Hart, Yuta Higuchi, Masayoshi Kobayashi, Toshio Koide, Bob Lantz, Brian O'Connor, Pavlin Radoslavov, William Snow, Guru Parulukar, HotSDN 2014
A Network State Management Service, Peng Sun, Ratul Mahajan, Jennifer Rexford, Lihua YuanMing Zhang, Ahsan Arefin, Sigcomm 2014
CoVisor: A Compositional Hypervisor for Software-Defined Networks, Xin Jin, Jennifer Gossels, Jennifer Rexford, David Walker, NSDI 2015
Towards Secure and Dependable Software-defined Networks, Diego Kreutz, Fernando M.V. Ramos, Paulo Veríssimo, HotSDN 2013

Data plane
DevoFlow: Scaling Flow Management for High-performance Networks, Andrew R. Curtis, Jeffrey C. Mogul, Jean Tourrilhes, Praveen Yalagandula, Puneet Sharma, Sujata Banerjee, Sigcomm 2011
Scalable Flow-based Networking with DIFANE, Minlan Yu, Jennifer Rexford, Michael J. Freedman, Jia Wang, Sigcomm 2010
Using CPU as a Traffic Co-processing Unit in Commodity Switches, Guohan Lu, Rui Miao, Yongqiang Xiong, Chuanxiong Guo, HotSDN 2012
Hey, You Darned Counters! Get off My ASIC!, Jeffrey C. Mogul, Paul Congdon, HotSDN 2012
Forwarding Metamorphosis: Fast Programmable Match-Action Processing in Hardware for SDN, Pat Bosshart, Glen Gibb, Hun-Seok Kim, George Varghese, Nick McKeown, Martin Izzard, Fernando Mujica, Mark Horowitz, Sigcomm 2013
No Silver Bullet: Extending SDN to the Data Plane, Anirudh Sivaraman, Keith Weinstein, Suvinay Subramanian, Hari Balakrishnan, HotNets 2013
Reclaiming the Brain: Useful OpenFlow Functions in the Data Plane, Liron Schiff, Michael Borokhovich, Stefan Schmid, HotNets 2014
Application-aware Data Plane Processing in SDN, Hesham Mekky, Fang Hao, Sarit Mukherjee, Zhi-Li Zhang, T.V. Lakshman, HotSDN 2014
Shadow MACs: Scalable Label Switching for Commodity Ethernet, Kanak Agarwal, Colin Dixon, Eric Rozner, John Carter, HotSDN 2014
CAB: A Reactive Wildcard Rule Caching System for Software-Defined Networks, Bo Yan, Yang Xu, Hongya Xing, Kang Xi, H. Jonathan Chao, HotSDN 2014
Infinite CacheFlow in Software-defined Networks, Naga Katta, Omid Alipurfard, Jennifer Rexford, David Walker, HotSDN 2014
An Adaptable Rule Placement for Software-defined Networks, Shuyuan Zhang, Franjo Ivancic, Cristian Lumezanu, Yifei Yuan, Aarti Gupta, Sharad Malik, DSN 2014
Compiling Packet Programs to Reconfigurable Switches, Lavanya Jose, Lisa Yan, George Varghese, Nick McKeown, NSDI 2015
The Design and Implementation of Open vSwitch, Ben Pfaff et al., NSDI 2015

Hybrid networks
Panopticon: Reaping the Benefits of Partial SDN Deployment in Enterprise Networks, Dan Levin, Marco Canini, Stefan Schmid, Fabian Schaffert, Anja Feldmann, USENIX ATC 2014
HybNET: Network Manager for A Hybrid Network Infrastructure, Hui Lu, Nipun Arora, Hui Zhang, Cristian Lumezanu, Junghwan Rhee, Guofei Jiang, Middleware (industrial track) 2013
ClosedFlow: OpenFlow-like Control over ProprietaryDevices, Ryan Hand, Eric Keller, HotSDN 2014

Languages for Software-Defined Networks, Nate Foster et al, IEEE Communication Magazine Feb 2013
Frenetic: A Network Programming Language, Nate Foster, Rob Harrison, Michael J. Freedman, Christopher Monsanto, Jennifer Rexford, Alec Story, David Walker, ICFP 2011
Composing Software-Defined Networks, Christopher Monsanto, Joshua Reich, Nate Foster, Jennifer Rexford, David Walker, NSDI 2013
Participatory Networking: An API for Application Control of SDNs, Andrew D. Ferguson, Arjun Guha, Chen Liang, Rodrigo Fonseca, Shriram Krishnamurthi, Sigcomm 2013
A Compile and Run-time System for Network Programming Languages, Christopher Monsanto, Nate Foster, Rob Harrison, David Walker, POPL 2012
Machine-Verified Network Controllers, Arjun Guha, Mark Reitblatt, Nate Foster, PLDI 2013
Nettle: Functional Reactive Programming of OpenFlow Networks, Andreas Voellmy and Paul Hudak, PADL 2011
Procera: A Language for High-Level Reactive Network Control, Andreas Voellmy, Hyojoon Kim, Nick Feamster, HotSDN 2012
FatTire: Declarative Fault Tolerance for Software-defined Networks, Mark Reitblatt, Marco Canini, Arjun Guha, Nate Foster, HotSDN 2013
A Balance of Power: Expressive, Analyzable Controller Programming, Tim Nelson, Arjun Guha, Daniel J. Dougherty, Kathi Fisler, Shriram Krishnamurthi, HotSDN 2013
Hierarchical Policies for Software Defined Networks, Andrew D. Ferguson, Arjun Guha, Chen Liang, Rodrigo Fonseca, Shriram Krishnamurthi, HotSDN 2012
Splendid Isolation: A Slice Abstraction for Software-Defined Networks, Stephen Gutz, Alec Story, Cole Schlesinger, Nate Foster, HotSDN 2012
CAP for Networks, Aurojit Panda, Colin Scott, Ali Ghodsi, Teemu Koponen, Scott Shenker, HotSDN 2013
Corybantic: Towards the Modular Composition of SDN Control Programs, Jeffrey C. Mogul, Alvin AuYoung, Sujata Banerjee, Lucian Popa, Jeongkeun Lee, Jayaram Mudigonda, Puneet Sharma, Yoshio Turner, HotNets 2013
NetEgg: Programming Network Policies by Examples, Yifei Yuan, Rajeev Alur, Boon Thau Loo, HotNets 2014
Tango: Simplifying SDN Control with Automatic SwitchProperty Inference, Abstraction, and Optimization, Aggelos Lazaris, Daniel Tahara, Xin Huang, Li Erran Li, Andreas Voellmy, Y. Richard Yang, Minlan Yu, CoNext 2014
Merlin: A Language for Provisioning Network Resources, Robert Soulé, Shrutarashi Basu, Parisa Jalili Marandi, Fernando Pedone, Robert Kleinberg, Emin Gün Sirer, Nate Foster, CoNext 2014
Democratic Resolution of Resource Conflicts BetweenSDN Control Programs, Alvin AuYoung, Yadi Ma, Sujata Banerjee, Jeongkeun Lee, Puneet Sharma, Yoshio Turner, Chen Liang, Jeffrey C. Mogul, CoNext 2014
Kinetic: Verifyable Dynamic Network Control, Hyojoon Kim, Joshua Reich, Arpit Gupta, Muhammad Shahbaz, Nick Feamster, Russ Clark, NSDI 2015
PGA: Using Graphs to Express and Automatically Reconcile Network Policies, Chaithan Prakash, Jeongkeun Lee, Yoshio Turner, Joon-Myung Kang, Aditya Akella, Sujata Banerjee, Charles Clark, Yadi Ma, Puneet Sharma, Ying Zhang, Sigcomm 2015

Abstractions for Network Update, Mark Reitblatt, Nate Foster, Jennifer Rexford, Cole Schlesinger, David Walker, Sigcomm 2012
zUpdate: Updating Data Center Networks with Zero Loss, Hongqiang Harry Liu, Xin Wu, Ming Zhang, Lihua Yuan, Roger Wattenhofer, David A. Maltz, Sigcomm 2013
Walk the Line: Consistent Network Updates with Bandwidth Guarantees, Soudeh Ghorbani, Matthew Caesar, HotSDN 2012
A Safe, Efficient Update Protocol for OpenFlow Networks, Rick McGreer, HotSDN 2012
Incremental Consistent Updates, Naga Praveen Katta, Jennifer Rexford, David Walker, HotSDN 2013
OF.CPP: Consistent Packet Processing for OpenFlow, Peter Perešíni, Maciej Kuźniar, Nedeljko Vasić, Marco Canini, Dejan Kostić, HotSDN 2013
HotSwap: Correct and Efficient Controller Upgrades for Software-Defined Networks, Laurent Vanbever, Joshua Reich, Theophilus Benson, Nate Foster, Jennifer Rexford, HotSDN 2013
On Consistent Updates in Software Defined Networks, Ratul Mahajan, Roger Wattenhofer, HotNets 2013
Dynamic Scheduling of Network Updates, Xin Jin, Hongqiang Harry Liu, Rohan Gandhi, Srikanth Kandula, Ratul Mahajan, Ming Zhang, Jennifer Rexford, Roger Wattenhofer, Sigcomm 2014
Good Network Updates for Bad Packets, Arne Ludwig, Matthias Rost, Damien Foucard, Stefan Schmid, HotNets 2014
Providing Reliable FIB Update Acknowledgments in SDN, Maciej Kuźniar, Peter Perešíni, Dejan Kostić, CoNext 2014
Incremental Update for a Compositional SDN Hypervisor, Xin Jin, Jennifer Rexford, David Walker, HotSDN 2014
Compiling Minimum Incremental Update for Modular SDN Languages, Xitao Wen, Chunxiao Diao, Xun Zhao, Yan Chen, Li Erran Li, Bo Yang, Kai Bu, HotSDN 2014
Enforcing Customizable Consistency Properties in Software-Defined Networks, Wenxuan Zhou, Dong Jin, Jason Croft, Matthew Caesar, P. Brighten Godfrey, NSDI 2014
Efficient Synthesis of Network Updates, Jedidiah McClurg, Hossein Hojjat, Pavol Cerny, Nate Foster, PLDI 2015

Emulation and Simulation
A Network in a Laptop: Rapid Prototyping for Software-Defined Networks, Bob Lantz, Brandon Heller, Nick McKeown, HotNets 2010
Fast, Accurate Simulation for SDN Prototyping, Mukta Gupta, Joel Sommers, Paul Barford, HotSDN 2013
High-Fidelity Switch Models for Software-Defined Network Emulation, Danny Yuxing Huang, Kenneth Yocum, Alex C. Snoeren, HotSDN 2013

Veriflow: Verifying Network-Wide Invariants in Real Time, Ahmed Khurshid, Wenxuan Zhou, Matthew Caesar, P. Brighten Godfrey, NSDI 2013
Header Space Analysis: Static Checking for Networks, Peyman Kazemian, George Varghese, Nick McKeown, NSDI 2012
Real Time Network Policy Checking using Header Space Analysis, Peyman Kazemian, Michael Chang, Hongyi Zeng, George Varghese, Nick McKeown, Scott Whyte, NSDI 2013
A NICE Way to Test OpenFlow Applications, Marco Canini, Daniele Venzano, Peter Perešini, Dejan Kostić, Jennifer Rexford, NSDI 2012
A SOFT Way for OpenFlow Interoperability Testing, Maciej Kuźniar, Peter Perešíni, Marco Canini, Daniele Venzano, Dejan Kostić, CoNEXT 2012
FlowChecker: Configuration, Analysis, and Verification of Federated OpenFlow Infrastructures, Ehab Al-Shaer, Saeed Al-Haj, SafeConfig 2010
Towards A Verifiable Software Dataplane, Mihai Dobrescu, Katerina Argyraki, HotNets 2013
An Assertion Language for Debugging SDN Applications, Ryan Beckett, X. Kelvin Zou, Shuyuan Zhang, Sharad Malik, Jennifer Rexford, David Walker, HotSDN 2014
Towards Correct Network Verification, Soudeh Ghorbani, Brighten Godfrey, HotSDN 2014

Leveraging SDN Layering to Systematically Troubleshoot Networks, Brandon Heller et al, HotSDN 2013
Troubleshooting Blackbox SDN Control Software with Minimal Causal Sequences, Colin Scott et al., Sigcomm 2014
OFRewind: Enabling Record and Replay Troubleshooting for Networks, Andreas Wundsam, Dan Levin, Srini Seetharaman, Anja Feldman, Usenix ATC 2011
Where Is the Debugger for My Software-Defined Network?, Nikhil Handigol, Brandon Heller, Vimalkumar Jeyakumar, David Mazières, Nick McKeown, HotSDN 2012
OFLOPS: An Open Framework for OpenFlow Switch Evaluation, Charalampos Rotsos, Nadi Sarrar, Steve Uhlig, Rob Sherwood, Andrew W. Moore, PAM 2012
Logically Centralized? State Distribution Trade-offs in Software Defined Networks, Dan Levin, Andreas Wundsam, Brandon Heller, Nikhil Handigol, Anja Feldman, HotSDN 2012
On Controller Performance in Software-Defined Networks, Amin Tootoonchian, Sergey Gorbunov, Yashar Ganjali, Martìn Casado, Rob Sherwood, Hot-ICE 2012
Answering Why-Not Queries in Software-defined Networks with Negative Provenance, Yang Wu, Andreas Haeberlen, Wenchao Zhou, Boon Thau Loo, HotNets 2013
Controller-agnostic SDN Debugging, Ramakrishnan Durairajan, Joel Sommers, Paul Barford, CoNext 2014
What You Need to Know About SDN Flow TablesMaciej Kuźniar, Peter Perešíni, Dejan Kostić, PAM 2015

SDN Applications

Monitoring and measurement
Software Defined Traffic Measurement with OpenSketch, Minlan Yu, Lavanya Jose, Rui Miao, NSDI 2013
FlowSense: Monitoring Network Utilization with Zero Measurement Cost, Curtis Yu, Cristian Lumezanu, Vishal Singh, Yueping Zhang, Guofei Jiang, Harsha V. Madhyastha, PAM 2013
Software-defined Latency Monitoring in Data Center Networks, Curtis Yu, Cristian Lumezanu, Abhishek Sharma, Qiang Xu, Guofei Jiang, Harsha V. Madhyastha, PAM 2015
Enabling Layer 2 Pathlet Tracing through ContextEncoding in Software-Defined Networking, Hui Zhang, Cristian Lumezanu, Junghwan Rhee, Nipun Arora, Qiang Xu, Guofei Jiang, HotSDN 2014
Online Measurement of Large Traffic Aggregates on Commodity Switches, Lavanya Jose, Minlan Yu, Jennifer Rexford, Hot-ICE 2011
Resource/Accuracy Tradeoffs in Software Defined Measurement, Masoud Moshref, Minlan Yu, Ramesh Govindan, HotSDN 2013
OpenTM: Traffic Matrix Estimator for OpenFlow Networks, Amin Tootoonchian, Monia Ghobadi, Yashar Ganjali, PAM 2010
Extensible and Scalable Network Monitoring using OpenSAFE, Jeffrey R. Ballard, Ian Rae, Aditya Akella, INM/WREN 2010
Lightweight DDoS Flooding Attack Detection using NOX/OpenFlow, Rodrigo Braga, Edjard Mota, Alexandre Passito, LCN 2010
DREAM: Dynamic Resource Allocation for Software-defined Measurement, Masoud Moshref, Minlan Yu, Ramesh Govindan, Amin Vahdat, Sigcomm 2014
Compiling Path Queries in Software-Defined Networks, Srinivas Narayana, Jennifer Rexford, David Walker, HotSDN 2014

Ethane: Taking Control of the Enterprise, Martìn Casado, Michael J. Freedman, Justin Pettit, Jianying Luo, Nick McKeown, Scott Shenker, Sigcomm 2007
Resonance: Dynamic Access Control in Enterprise Networks, Ankur Nayak, Alex Reimers, Nick Feamster, Russ Clark, WREN 2009
OpenFlow Random Host Mutation: Transparent Moving Target Defense using Software Defined Networking, Jafar Haadi Jafarian, Ehab Al-Shaer, Qi Duan, HotSDN 2012
FRESCO: Modular Composable Security Services for Software-Defined Networks, Seungwon Shin, Phil Porras, Vinod Yagneswaran, Martin Fong, Guofei Gu, Mabry Tyson, NDSS 2013
NetFuse: Short-circuiting Traffic Surges in the Cloud, Ye Wang, Yueping Zhang, Vishal Singh, Cristian Lumezanu, Geoff Jiang, ICC 2013
Improving Network Management with Software Defined Networking, Hyojoon Kim, Nick Feamster, IEEE Communications Magazine Feb 2013
A Security Enforcement Kernel for OpenFlow Networks, Phillip Porras, Seungwon Shin, Vinod Yegneswaran, Martin Fong, Mabry Tyson, Guofei Gu, HotSDN 2012
FlowGuard: Building Robust Firewalls for Software-defined Networks, Hongxin Hu, Wonkyu Han, Gail-Joon Ahn, Ziming Zhao, HotSDN 2014
Fleet: Defending SDN from Malicious Administrators, Stephanos Matsumoto, Samuel Hitz, Adrian Perrig, HotSDN 2014
A Survey of Securing Networks Using Software Defined Networking, Syed Taha Ali, Vijay SIvaraman, Adam Radford, Sanjay Jha, Transactions on Reliability 2015
Software Defined Networking for Security Enhancement in Wireless Mobile Networks, Aaron Yi Ding, Jon Crowcroft, Sasu Tarkoma, Hannu Flinck, Computer Networks 2014

Applying NOX to the Datacenter, Arsalan Tavakoli, Martìn Casado, Teemu Koponen, Scott Shenker, HotNets 2009
A Management Method of IP Multicast in Overlay Networks using OpenFlow, Yukihiro Nakagawa, Kazuki Hyoudou, Takeshi Shimizu, HotSDN 2012
Dynamic Graph Query Primitives for SDN-based Cloud Network Management, Ramya Raghavendra, Jorge Lobo, Kang-Won Lee, HotSDN 2012
Meridian: An SDN Platform for Cloud Network Services, Mohammad Banikazemi, David Olshefski, Anees Shaikh, John Tracey, Guohui Wang, IEEE Communications Magazine Feb 2013

Transparent and Flexible Network Management for Big Data Processing in the Cloud, Anupam Das, Cristian Lumezanu, Yueping Zhang, Vishal Singh, Guofei Jiang, Curtis Yu, HotCloud 2013
Programming Your Network at Run-time for Big Data Applications, Guohui Wang, T.S. Eugene Ng, Anees Shaikh, HotSDN 2012

Can the Production Network Be the Testbed?, Rob Sherwood, Glen Gibb, Kok-Kiong Yap, Guido Appenzeller, Martìn Casado, Nick McKeown, Guru Parulkar, OSDI 2010
OpenNF: Enabling Innovation in Network Function Control, Aaron Gember-Jacobson, Raajay Viswanathan, Chaithan Prakash, Robert Grandl, Junaid Khalid, Sourav Das, Aditya Akella, Sigcomm 2014
SIMPLE-fying Middlebox Policy Enforcement Using SDN, Zafar Ayyub Qazi, Cheng-Chun Tu, Luis Chiang, Rui Miao, Vyas Sekar, Minlan Yu, Sigcomm 2013
FlowTags: Enforcing Network-Wide Policies in the Presence of Dynamic Middlebox Actions, Seyed Kaveh Fayazbakhsh, Vyas Sekar, Minlan Yu, Jeffrey C. Mogul, HotSDN 2013
Enabling Fast, Dynamic Network Processing with ClickOS, Joao Martins, Mohamed Ahmed, Costin Raiciu, Felipe Huici, HotSDN 2013
Design and Implementation of a Consolidated Middlebox Architecture, Vyas Sekar, Norbert Egi, Sylvia Ratnasamy, Michael K. Reiter, Guangyu Shi, NSDI 2012
Don't Call Them Middleboxes, Call Them Middlepiples, Hani Jamjoom, Dan Williams, Upendra Sharma, HotSDN 2014

Hedera: Dynamic Flow Scheduling for Data Center Networks, Mohammad Al-Fares, Sivasankar Radhakrishnan, Barath Raghavan, Nelson Huang, Amin Vahdat, NSDI 2010
ElasticTree: Saving Energy in Data Center Networks, Brandon Heller, Srini Seetharaman, Priya Mahadevan, Yannis Yakoumis, Puneet Sharma, Sujata Banerjee, Nick McKeown, NSDI 2010
OpenFlow-based Server Load Balancing Gone Wild, Richard Wang, Dana Butnariu, Jennifer Rexford, Hot-ICE 2011
Plug-n-Serve: Load-balancing Web Traffic using OpenFlow, Nikhil Handigol, Srinivasan Seetharaman, Mario Flajslik, Nick McKeown, Ramesh Johari, Sigcomm 2009 Demo
Revisiting Routing Control Platforms with the Eyes and Muscles of Software-Defined Networking, Christian Esteve Rothenberg, Marcelo Ribeiro Nascimento, Marcos Rogerio Salvador, Carlos N.A. Correa, Sidney C. de Lucena, Robert Raszuk, HotSDN 2012
Traffic Engineering in Software-defined Networks, Sugam Agarwal, Murali Kodialam, T.V. Lakshman, Infocom 2013
A Declarative and Expressive Approach to Control Forwarding Paths in Carrier-Grade Networks, Renaud Hartert, Stefano Vissicchio, Pierre Schaus, Olivier Bonaventure, Clarence Filsfils, Thomas Telkamp, Pierre Francois, Sigcomm 2015
Central Control over Distributed Routing, Stefano Vissicchio, Olivier Tilmans, Laurent Vanbever, Jennifer Rexford, Sigcomm 2015 

Achieving High Utilization with Software-Driven WAN, Chi-Yao Hong, Srikanth Kandula, Ratul Mahajan, Ming Zhang, Vijay Gill, Mohan Nanduri, Roger Wattenhofer, Sigcomm 2013
B4: Experience with a Globally-Deployed Software Defined WAN, Sushant Jain et al., Sigcomm 2013
SDX: A Software Defined Internet Exchange, Arpit Gupta et al., Sigcomm 2014
Virtualizing the Access Network via Open APIs, Vijay Sivaraman, Hassan Habibi Gharakheili, Dennis Ong, John Matthews, Craig Russell, CoNEXT 2013

Optical (many thanks to Yawei Yin for most of the references below)
PAC.C, Saurav Das and others
Software-Defined Optical Networks Technology and Infrastructure: Enabling Software-Defined Optical Network OperationsMayur Channegowda, Reza Nejabati, Dimitra Simeonidou, Journal of Optical Communications and Networking 2013
SDN and OpenFlow for Dynamic Flex-Grid Optical Access and Aggregation Networks, Neda Cvijetic, Akihiro Tanaka, Philip N. Ji, Karthik Sethuraman, Shuji Murakami, Ting Wang, Journal of Lightwave Technology 2014
First Field Trial of an OpenFlow-based Unified Control Plane for Multi-layer Multi-granularity Optical NetworksLei LiuDongxu ZhangTakehiro TsuritaniRicard VilaltaRamon CasellasLinfeng HongItsuro MoritaHongxiang GuoJian WuRicardo Martinez, Raul Muñoz, Optical Fiber Communication Conference 2012
Extending software defined network principles to include optical transport, Steven Gringeri, Nabil Bitar, Tiejun J. Xia, IEEE Communications Magazine 2013

SoftRAN: Software Defined Radio Access Network, Aditya Gudipati, Daniel Perry, Li Erran Li, Sachin Katti, HotSDN 2013
OpenRadio: A Programmable Wireless Dataplane, Manu Bansal, Jeffrey Mehlman, Sachin Katti, Philip Levis, HotSDN 2012
Towards Programmable Enterprise WLANs with Odin, Lalith Suresh, Julius Schulz-Zander, Ruben Merz, Anja Feldmann, Teresa Vazao, HotSDN 2012
Towards Software-Defined Cellular Networks, Li Erran Li, Z. Morley Mao, Jennifer Rexford, EWSDN 2012
SoftMoW: Recursive and ReconfigurableCellular WAN Architecture, Mehrdad Moradi, Wenfei Wu, Li Erran Li, Z. Morley Mao, CoNext 2014

Other resources

OpenFlow webpage
OpenFlow switch specification, 1.1.0, 2011
OpenFlow research demos
List of OpenFlow software projects maintained by Martìn Casado
NEC’s SDN initiatives

Conferences, workshops and summits
Symposium on SDN Research (SOSR) 2015 2016
Open Networking Summit 2011 2012 2013 2014 2015
Workshop on Hot Topics in Software Defined Networking (HotSDN) 2012 2013 2014
Workshop on Software Defined Networks (SDN) 2012
European Workshop on Software Defined Networking (EWSDN) 2012 2013 2014