21. Acknowledgements

The authors would like to acknowledge the review, feedback, and comments from Emmanuel Baccelli, Dominique Barthel, Yusuf Bashir, Yoav Ben-Yehezkel, Phoebus Chen, Quynh Dang, Mischa Dohler, Mathilde Durvy, Joakim Eriksson, Omprakash Gnawali, Manhar Goindi, Mukul Goyal, Ulrich Herberg, Anders Jagd, JeongGil (John) Ko, Ajay Kumar, Quentin Lampin, Jerry Martocci, Matteo Paris, Alexandru Petrescu, Joseph Reddy, Michael Richardson, Don Sturek, Joydeep Tripathi, and Nicolas Tsiftes.

The authors would like to acknowledge the guidance and input provided by the ROLL Chairs, David Culler and JP. Vasseur, and the Area Director, Adrian Farrel.

The authors would like to acknowledge prior contributions of Robert Assimiti, Mischa Dohler, Julien Abeille, Ryuji Wakikawa, Teco Boot, Patrick Wetterwald, Bryan Mclaughlin, Carlos J. Bernardos, Thomas Watteyne, Zach Shelby, Caroline Bontoux, Marco Molteni, Billy Moon, Jim Bound, Yanick Pouffary, Henning Rogge, and Arsalan Tavakoli, who have provided useful design considerations to RPL.

RPL Security Design, found in Section 10, Section 19, and elsewhere throughout the document, is primarily the contribution of the Security Design Team: Tzeta Tsao, Roger Alexander, Dave Ward, Philip Levis, Kris Pister, Rene Struik, and Adrian Farrel.

Thanks also to Jari Arkko and Ralph Droms for their attentive reviews, especially with respect to interoperability considerations and integration with other IETF specifications.