Appendix A. Acknowledgements

A.1. This Document

The authors would like to thank the following people that have provided proposals and contributions to this document:

To Vishnu Ram and Satendra Gera for their contributions on capabilities updates, predictive loop avoidance, as well as many other technical proposals. To Tolga Asveren for his insights and contributions on almost all of the proposed solutions incorporated into this document. To Timothy Smith for helping on the capabilities Update and other topics. To Tony Zhang for providing fixes to loopholes on composing Failed-AVPs as well as many other issues and topics. To Jan Nordqvist for clearly stating the usage of Application Ids. To Anders Kristensen for providing needed technical opinions. To David Frascone for providing invaluable review of the document. To Mark Jones for providing clarifying text on vendor command codes and other vendor-specific indicators. To Victor Pascual and Sebastien Decugis for new text and recommendations on SCTP/DTLS. To Jouni Korhonen for taking over the editing task and resolving last bits from versions 27 through 29.

Special thanks to the Diameter extensibility design team, which helped resolve the tricky question of mandatory AVPs and ABNF semantics. The members of this team are as follows:

Avi Lior, Jari Arkko, Glen Zorn, Lionel Morand, Mark Jones, Tolga Asveren, Jouni Korhonen, and Glenn McGregor.

Special thanks also to people who have provided invaluable comments and inputs especially in resolving controversial issues:

Glen Zorn, Yoshihiro Ohba, Marco Stura, Stephen Farrel, Pete Resnick, Peter Saint-Andre, Robert Sparks, Krishna Prasad, Sean Turner, Barry Leiba, and Pasi Eronen.

Finally, we would like to thank the original authors of this document:

Pat Calhoun, John Loughney, Jari Arkko, Erik Guttman, and Glen Zorn.

Their invaluable knowledge and experience has given us a robust and flexible AAA protocol that many people have seen great value in adopting. We greatly appreciate their support and stewardship for the continued improvements of Diameter as a protocol. We would also like to extend our gratitude to folks aside from the authors who have assisted and contributed to the original version of this document. Their efforts significantly contributed to the success of Diameter.

A.2. RFC 3588

The authors would like to thank Nenad Trifunovic, Tony Johansson and Pankaj Patel for their participation in the pre-IETF Document Reading Party. Allison Mankin, Jonathan Wood, and Bernard Aboba provided invaluable assistance in working out transport issues and this was also the case with Steven Bellovin in the security area.

Paul Funk and David Mitton were instrumental in getting the Peer State Machine correct, and our deep thanks go to them for their time.

Text in this document was also provided by Paul Funk, Mark Eklund, Mark Jones, and Dave Spence. Jacques Caron provided many great comments as a result of a thorough review of the spec.

The authors would also like to acknowledge the following people for their contribution in the development of the Diameter protocol:

Allan C. Rubens, Haseeb Akhtar, William Bulley, Stephen Farrell, David Frascone, Daniel C. Fox, Lol Grant, Ignacio Goyret, Nancy Greene, Peter Heitman, Fredrik Johansson, Mark Jones, Martin Julien, Bob Kopacz, Paul Krumviede, Fergal Ladley, Ryan Moats, Victor Muslin, Kenneth Peirce, John Schnizlein, Sumit Vakil, John R. Vollbrecht, and Jeff Weisberg.

Finally, Pat Calhoun would like to thank Sun Microsystems since most of the effort put into this document was done while he was in their employ.