-
ACM Sigcomm:
- Secretary/Treasurer 2002-2003
- Conference Coordinator 2003-2007
- Conference Coordinator Emeritus (2007-2011)
- IANA Port Expert Review Team leader 2008-present
-
IEEE Comunications Society:
- Internet TC (co-chair 2000-2004)
- TC on Gigabit Networking (TCGN) (chair 1999-2001, vice-chair 1996-1999)
- TC on Computer Communications (TCCC) (chair 2008-2012)
- Director of Conference Operations (2012-2013)
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IETF Directorate member:
- Transport Directorate
- SmartPower Directorate
- IRSG member 2010-present
- IRTF Virtual Networks Research Group co-creator, chair 2010-present
- IEEE Network, '97-present
- Journal of Computer and Systems Sciences '07-present
- Computer Networks, '99-'06
Conference Steering Committees
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- ACM Sigcomm Conext ReArch Steering Committee 2008-present
- Global Future Internet Summit 2011-present
- IARIA Int’l Conf. on Internet Surveillance & Protection (ICISP) Advisory Committee 2006
- IEEE FutureNet Steering Committee 2011-present
- IEEE Infocom Standing Committee 2005-2012
- IEEE Global Internet Steering Committee 2000-2012 (Chair)
- IEEE Workshop on Internet Applications Steering Committee 1999-2005
Conference Executive Committees
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- ACM Sigcomm (Publicity Chair 2000, Finance Chair 2001, Registration/Finance Chair 2012)
- ACM Sigcomm CoNext ReArch Workshop (Chair 2008)
- AsiaFI Conference on Future Internet (CFI) (Tech. Co-Chair 2011, Co-Chair 2012)
- IEEE Computer Communications Workshop (Finance Chair 2009, Chair 2010)
- IEEE ICCCN Future Internet Arch. and Protocols 2008, Network Arch. and Protocols 2009 (Chair)
- IEEE Global Internet Workshop 1996-1999, 2001-2006, 2008-present (Chair 2005)
- IEEE Infocom 1994-2003, 2005-present (Internet Co-chair 1999, TPC Chair 2006)
- IEEE ICC FutureNet IV 2011 (Chair)
- IEEE High-Speed (fmr. Gigabit) Netw. Workshop 1996-present (CoChair 1997, 1999; Chair 1998)
- IFIP Protocols for High-Speed Networks 1994-2002 (Co-chair 1999)
- Optical Internet Workshop 1997 (Chair)
- SPIE Opticomm 2001 (Vice General Chair)
- ACM Sigcomm Asia Workshop 2005
- ACM Dynamic Interconnection of Networks Workshop (at Mobicom) 2005
- Asia Internet Engineering Conference (AINTEC) 2012
- Conference on Comm. Systems and Networks (COMSNETS) 2012
- ENext CoNext Workshop 2006-2007
- IARIA Int’l Conf. on Internet Surveillance & Protection (ICISP) 2006
- IEEE Conference on High Speed Networks 1999, 2000
- IEEE Conference on Networks for Grid Applications (GridNets) 2007
- IEEE ICC (was Globecom) FutureNet Workshop 2009-present
- IEEE Infocom Works in Progress 2010
- IEEE International Conference on Network Protocols (ICNP) 2002-2003, 2005-2006
- IEEE Openarch 2002-2003
- IEEE Network Storage Symposium 1999
- IEEE Symposium on Internet Services and Enabling Technologies (ISET) 2006
- IEEE Workshop on Computer Communications 1997
- IEEE Workshop on Internet Applications 1999-2001
- IEEE Workshop on Long-Delay Broadband Networks 1997
- OSA Photonics in Switching 2012
- Physics of Computation Workshop 1994
- Protocols for Future, Large-Scale and Diverse Network Transports (PFLDNeT) 2009-present


