Upcoming Events

IETF-80 David will be attending IETF-80 in Prague, Czech Republic, March 27-April 1, 2011
Hot P2P 2011 David will be presenting at the Eighth International Workshop on Hot Topics in Peer-to-Peer Systems (HOTP2P '11) at IPDPS 2011, Anchorage, Alaska, USA, May 16-20, 2011

Publications and Articles


Note: IETF Drafts can be found here.

Hot P2P 2011 David A. Bryan,
An Adaptive Response Routing Mechanism to Improve DHT Performance in the Presence of NATs,
Proceedings of the Eighth International Workshop on Hot Topics in Peer-to-Peer Systems (Hot-P2P '11, workshop @ IPDPS 2011), May 2011 (to appear)
The IETF Journal Enrico Marocco and David Bryan,
The Peer-to-Peer Invasion,
The IETF Journal, Volume 6, Issue 1, June 2010
Hot P2P 2008 David A. Bryan, Bruce B. Lowekamp and Marcia Zangrilli,
The Design of a Versatile, Secure P2PSIP Communications Architecture for the Public Internet,
Proceedings of the Fifth International Workshop on Hot Topics in Peer-to-Peer Systems (Hot-P2P '08, workshop @ IPDPS 2008), April 2008
Business Communications Review David A. Bryan,
P2PSIP: On the Road to a World Without Servers,
Business Communications Review, April 2007
ACM Queue David A. Bryan and Bruce B. Lowekamp,
P2PSIP: On the Road to a World Without Decentralized SIP: Peer-to-Peer SIP,
ACM Queue Magazine (invited paper), March 2007
William and Mary CS David A. Bryan, Marcia Zangrilli, and Bruce B. Lowekamp,
Challenges of DHT Design for a Public Communications System,
William and Mary Technical Report WM-CS-2006-03, June 2006
VSGC David A. Bryan and Bruce B. Lowekamp,
Innovations in Peer-to-Peer Communications,
Proceedings of the 2006 Virginia Space Grant Consortium Research Conference, April 2006
Business Communications Review David A. Bryan and Cullen Jennings,
P2P For Communications: Beyond File Sharing,
Business Communications Review, February 2006
ICIW '06 Feng Cao, David A. Bryan, and Bruce B. Lowekamp,
Providing Secure Services in Peer-to-Peer Communications Networks with Central Security Servers,
Proceedings of the 2006 International Conference on Internet and Web Applications and Services (ICIW'06), February 2006
Hot P2P 2008 David A. Bryan, Bruce B. Lowekamp, and Cullen Jennings,
SOSIMPLE: A Serverless, Standards-based, P2P SIP Communication System,
Proceedings of the 2005 International Workshop on Advanced Architectures and Algorithms for Internet Delivery and Applications (AAA-IDEA 2005), June 2005
VSGC David A. Bryan and Bruce B. Lowekamp,
Standards-Based P2P Communications Systems,
Proceedings of the 2005 Virginia Space Grant Consortium Research Conference, April 2005
William and Mary CS David A. Bryan and Bruce B. Lowekamp,
SOSIMPLE: A SIP/SIMPLE Based P2P VoIP and IM System,
William and Mary Technical Report, November 2004
Embedded Linux Journal David Bryan and David Kelly,
VOCAL: Open Source VoIP Software for Linux,
Embedded Linux Journal, May 2002
PAC 2001 A. Hofler, D. Bryan, L. Harwood, M. Joyce, V. Lebedev,
Empirically Determined Response Matrices for On-Line Orbit and Energy Correction at Thomas Jefferson National Accelerator Facility,
Proceedings of the 2001 Particle Accelerator Conference (PAC 2001), June 2001
PAC 1999 D. A. Bryan, M. Bickley, B. A. Bowling, J. van Zeijts, K. S. White, S. Witherspoon,
Using Servers to Enhance Control System Capability,
Proceedings of the 1999 Particle Accelerator Conference (PAC '99), March 1999
PAC 1999 D. A. Bryan, M. Bickley, K.S. White,
The Automator: Intelligent Control System Monitoring,
Proceedings of the 1999 Particle Accelerator Conference (PAC '99), March 1999
ICALEPCS '97 Ding Jun, David Bryan and William Watson,
Centrally Managed Name Resolution Schemes for EPICS,
Proceedings of the International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS '97), November 1997

Talks and Interviews


Note: IETF Presentations can be found here.

China Mobile On June 18, 2010, David presented two invited talks at the China Mobile PPSP Workshop in Beijing, China: PPSP Protocol Considerations (PowerPoint) and PPSP Tracker Protocol (Powerpoint).
VoiceCon Virtual Events David presented a SIP Technology Update at VoiceCon's first ever virtual event on June 10, 2009.
VoiceCon Orlando 2009 On March 30, 2009 David Bryan presented on SIP Fundamentals and Prospects at VoiceCon Orlando 2009.
VoiceCon San Francisco 2008 David Bryan presented a SIP tutorial at VoiceCon San Francisco 2008 on November 10, 2008.
Voxeo On November 20, 2008 Dan York Interviewed David for a video podcast at the Voxeo corporate blog
Alec Sauder's Squawkbox Podcast On July 9th, 2008 David Bryan spoke about Peer-to-Peer SIP on "Alec Saunder's Squawkbox Podcast" guest hosted by Dan York.
Hot-P2P '08 On April 18, 2008, David presented on the paper "The Design of a Versatile, Secure P2PSIP Communications Architecture for the Public Internet" at Hot-P2P '08 (workshop @ IPDPS 2008)
Telecosm Blog March, 2008 -- Telecom blogger Ike Elliott interviewed David Bryan on Peer to Peer Technology for his Telecosm Blog.
VoiceCon Orlando 2008 David Bryan spoke on "P2PSIP: Why, What, Where and When?" at VoiceCon Orlando 2008 on March 19, 2008.
International SIP 2008 On January 30, 2008 David Bryan spoke on P2PSIP and participated in a debate on "P2PSIP Technical Issues" at International SIP 2008 in Paris, France
ITExpo East On January 24, 2008 David Bryan led a session on "The State of SIP" at the ITEXPO East in Miami, Florida.
New Market Peering Conference On November 30, 2007 David Bryan provided a "Peer-to-Peer Network Update" at the New Market Peering Conference in Orlando, Florida.
Fall VON 2007 On November 1, 2007 David Bryan spoke on how "Peer to Peer will do to VoIP, What VoIP did to the PSTN" at Fall VON.
VoiceCon 2007 David Bryan spoke on SIP Fundamentals and Prospects at VoiceCon 2007 in San Francisco. He also moderated the panel "Peer-to-Peer: Friend or Foe" on August 21st.
Bell Labs David gave an invited talk on P2PSIP at Alcatel-Lucent's Bell Labs in August 2007.
Spring VON Europe David Bryan was invited to speak at Spring VON Europe in Stockholm, Sweden on how "Peer to Peer will do to VoIP, What VoIP did to the PSTN".
MAVA David spoke presented on SIPeerior Technologies at the Mid-Atlantic Venture Association's "Capital Connection" in Baltimore in May of 2007.
Interop Las Vegas 2007 In May 2007 David Bryan spoke on "Why SIP is Crucial to Convergence" at Interop Las Vegas 2007
Pulvermedia On April 11, 2007 David Bryan and Carl Ford, Community Developer for pulvermedia, presented a webinar entitled "P2P SIP will do to VoIP what VoIP has done to PSTN".
ISOC Netherlands David was invited to speak on "Emerging IETF Standards work in the IETF" on March 15, 2007 at the "Future of VoIP II" ISOC Nederland Conference in The Hauge, the Netherlands.
VoiceCon Spring 2007 For VoiceCon Spring 2007, David Bryan spoke on "SIP Fundamentals and Prospects" on March 5. On March 8, David moderated a discussion on P2P technologies.
International SIP 2007 February 28, 2007, David Bryan spoke on "Emerging IETF Standards Work on P2P SIP" and participated in the debate on SIP, P2P and IMS at International SIP 2007.
Huawei David presented a series of invited talks on P2PSIP at Huawei in Nanjing, China in January, 2007.
Fall VON David Bryan spoke at Fall VON 2006 in Boston on "SIP Peer to Peer: Is This the New SIP?".
VoiceCon Fall 2006 David Bryan spoke at VoiceCon Fall 2006 in San Francisco, in the session "What's to Fear from Peer to Peer", and lead the SIP tutorial "SIP Fundamentals and Prospects".
VON Europe Spring 2006 David Bryan, moderated the Peer-to-Peer general session for VON Europe Spring on May 16, 2006, in Stockholm, Sweden.
VSGC Presentation on Innovations in P2P Communications (PowerPoint), from the 2006 Virginia Space Grant Consortium Research Conference, April 11, 2006
Spring VON 2006 David Bryan spoke at Spring VON in San Jose on March 15, 2006.
TMCNet March, 2006 -- Erik Lagerway interviews David Bryan about P2PSIP for the SIPThat VoIP blog at TMC.
Cisco System David presented an invited talk on Peer-to-Peer SIP (PowerPoint) at Cisco Systems in San Jose, CA, on July 27, 2005
VSGC Presentation on Standards-Based P2P Communications Systems (PowerPoint), from the 2005 Virginia Space Grant Consortium Research Conference, April 1, 2005
William and Mary CS Presentation on SIP, SDP and VoIP (PowerPoint), Guest Lecturer, Networking Graduate Course, College of William and Mary, November 15, 2004 and December 6, 2003
William and Mary CS In December 2003, David presented the first ever talk on the idea of P2PSIP as a class project talk: SOSIMPLE : P2P Instant Messaging and Communication (PowerPoint), P2P and Grid Project Talk, College of William and Mary, November 25, 2003, and the accompanying paper (pdf)
VON An early talk from October 10, 2002, not on P2PSIP, but on what would later be called "Intercarrier Peering"Peer-to-Peer Solutions Between Service Providers (PowerPoint), Fall 2002 Voice on the Net (VON), October 10, 2002
SVLUG In September 2001, I presented on SIP & VOCAL (html), with Cheung Tam to the Silicon Valley Linux Users Group

Blogging on Other Sites


IETF Drafts (including expired)

  • PPSP Peer Protocol, draft-gu-ppsp-peer-protocol
    • Revision -00, Y. Gu and D. Bryan (July 2010) (txt)

  • PPSP Tracker Protocol, draft-gu-ppsp-tracker-protocol
    • Revision -01, Y. Gu, D. Bryan, Y. Zhang and H. Liao (July 2010) (txt)
    • Revision -00, Y. Gu, D. Bryan, Y. Zhang and H. Liao (February 2010) (txt)

  • DECADE Requirements, draft-gu-decade-reqs
    • Revision -05, Y. Gu, D. Bryan, Y. Yang, R. Alimi (July 2010) (txt)

  • P2PSIP Overlay Diagnostics, draft-ietf-p2psip-diagnostics
    • Revision -04, H. Song, X. Jiang, R. Even, and D. Bryan (July 2010) (txt)
    • Revision -03, H. Song, X. Jiang, R. Even, and D. Bryan (March 2010) (txt)
    • Revision -02, H. Song, X. Jiang, R. Even, and D. Bryan (December 2009) (txt)
    • Revision -01, H. Song, X. Jiang, R. Even, and D. Bryan (June 2009) (txt)

  • An Aggregate Network and Cost Map (CPID) Extension for the ALTO Protocol, draft-wang-alto-cpid
    • Revision -01, H. Song, M. Chen, Y. Wang, and D. Bryan (July 2010) (txt)

  • An Extension to RELOAD to Support Direct Response and Relay Peer Routing, draft-jiang-p2psip-relay
    • Revision -02, X. Jiang, R. Even, and D. Bryan (May 2009) (txt)

  • Concepts and Terminology for Peer to Peer SIP, draft-ietf-p2psip-concepts
    • Revision -02, D. Bryan, P. Matthews, E. Shim, D. Willis and S. Dawkins (July 2008) (txt) (html)
    • Revision -01, D. Bryan, P. Matthews, E. Shim, and D. Willis (November 2007) (txt)
    • Revision -00, D. Bryan, P. Matthews, E. Shim, and D. Willis (June 2007) (txt) (html)

  • Application Scenarios for Peer-to-Peer Session Initiation Protocol (P2PSIP), draft-bryan-p2psip-app-scenarios
    • Revision -00, D. Bryan, E. Shim, B. Lowekamp, S. Dawkins, Ed. (November 2007) (txt)

  • REsource LOcation And Discovery (RELOAD), draft-bryan-p2psip-reload
    • Revision -01, D. Bryan, M. Zangrilli, B. Lowekamp (July 2007) (txt) (html)
    • Revision -00, D. Bryan, M. Zangrilli, B. Lowekamp (June 2007) (txt) (html)

  • Use Cases for Peer-to-Peer Session Initiation Protocol, draft-bryan-p2psip-usecases
    • Revision -00, D. Bryan, E. Shim, and B. Lowekamp (July 2007) (txt) (html)

  • P2PSIP Protocol Framework and Requirements, draft-bryan-p2psip-requirements
    • Revision -00, D. Bryan, S. Baset, M. Matuszewski, and H. Sinnreich (June 2007) (txt)

  • Concepts and Terminology for Peer to Peer SIP, draft-willis-p2psip-concepts
    • Revision -04, D. Bryan, P. Matthews, E. Shim, D. Willis (March 2007) (txt) (html)
    • Revision -03, D. Bryan, P. Matthews, E. Shim, D. Willis - Ed. (October 2006) (txt) (html)
    • Revision -02, D. Willis - Ed., D. Bryan, P. Matthews, E. Shim (October 2006) (txt) (html)
    • Revision -01, D. Willis - Ed., D. Bryan, P. Matthews, E. Shim (August 2006) (txt) (html)
    • Revision -00, D. Willis - Ed., D. Bryan, P. Matthews, E. Shim (June 2006) (txt) (html)

  • Interworking between P2PSIP Overlays and Conventional SIP Networks, draft-marocco-p2psip-interwork
    • Revision -01, E. Marocco and D. Bryan (March 2007) (txt) (html)
    • Revision -00, E. Marocco and D. Bryan (August 2006) (txt) (html)

  • dSIP: A P2P Approach to SIP Registration and Resource Location, draft-bryan-p2psip-dsip
    • Revision -00, D. Bryan, B. Lowekamp, and C. Jennings (February 2007) (txt) (html)

  • A Chord-based DHT for Resource Lookup in P2PSIP, draft-zangrilli-p2psip-dsip-dhtchord
    • Revision -00, M. Zangrilli and D. Bryan (February 2007) (txt) (html)

  • NAT Traversal for dSIP, draft-matthews-p2psip-dsip-nat-traversal
    • Revision -00, E. Cooper, P. Matthews, D. Bryan, and B. Lowekamp (February 2007) (txt) (html)

  • A Bamboo-based DHT for Resource Lookup in P2PSIP, draft-zangrilli-p2psip-dsip-dhtbamboo
    • Revision -00, M. Zangrilli and D. Bryan (February 2007) (txt) (html)

  • A P2P Approach to SIP Registration and Resource Location
    (Note: Replaced with draft-bryan-p2psip-dsip-00), draft-bryan-sipping-p2p
    • Revision -03, D. Bryan, B. Lowekamp, and C. Jennings (October 2006) (txt) (html)
    • Revision -02, D. Bryan, B. Lowekamp, and C. Jennings (March 2006) (txt) (html)
    • Revision -01, D. Bryan and C. Jennings (July 2005) (txt) (html)
    • Revision -00, D. Bryan and C. Jennings (January 2005) (txt) (html)

  • P2P SIP in Disconnected or Limited Connectivity Scenarios, draft-marocco-sipping-p2p-scenarios
    • Revision -00, E. Marocco and D. Bryan (May 2006) (txt) (html)

  • Use Cases for Peer-to-Peer Session Initiation Protocol (P2P SIP), draft-bryan-sipping-p2p-usecases
    • Revision -00, D. A. Bryan, E. Shim and B. B. Lowekamp (November 2005) (txt) (html)

  • Telephony Tones Using MIDI in SIP, draft-bryan-sipping-midi
    • Revision -00, D. Bryan and C. Jennings (October 2003) (txt) (html)


Last modified: 16 January, 2011