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Video, Audio, and Data Conferencing:

ESnet provides human collaboration services in the form of a network-based video, telephony-

based audio, and web-based data conferencing systems. These video-audio-data (VAD) systems

consist of five basic elements: H.323 IP video bridges, point-to-multipoint web-based video

streamer, a video-audio gateway service, web-based audio bridge scheduling system, and Dial

Plan Gatekeeper service. The overall system provides H323 IP ad hoc video conferences that can

be joined by telephone-only users via the gateway service while streamed across the Internet and

for scheduled audio and data conferences.

The video conferencing system was upgraded to more modern hardware and software in 2007.

The system is currently located at the ESnet facility at LBNL and is not replicated. Support is

provided 8:00 am­5:00 pm US Pacific Time (though trouble tickets are accepted 24×7).

Acknowledgements:

This work was supported by the Director, Office of Science, Office of Advanced Scientific

Computing Research, of the U.S. Department of Energy under Contract No. DE-AC02-

05CH11231. ESnet is operated by Lawrence Berkeley National Laboratory, which is operated by

the University of California for the US Dept. of Energy.

Notes and References:

[1]

"ESnet4 Overview Part 1 ­ The Drivers: The Networking Requirements of DOE's Office

of Science Programs and Facilities," W. E. Johnston and Eli Dart, available from

wej@es.net.

[2]

"DOE

Science

Networking

Roadmap

Meeting,"

June

2003,

http://www.es.net/hypertext/welcome/pr/Roadmap/index.html

[3]

"Science-Driven Network Requirements for ESnet," available from Eli Dart

(dart@es.net).

[4]

ESnet OSCARS webpage: http://www.es.net/oscars. Also see "Measurements on Hybrid

Dedicated Bandwidth Connections," May 2007. Nageswara S. V. Rao, William R. Wing,

Qishi Wu, Nasir Ghani, Tom Lehman, Chin P. Guok and Eli Dart. INFOCOM 2007,

IEEE (TCHSN/ONTC). "Control Plane Architecture and Design Considerations for

Multi-Service, Multi-Layer, Multi-Domain Hybrid Networks," May 2007. Tom Lehman,

Xi Yang, Chin P. Guok, Nageswara S. V. Rao, Andy Lake, John. Available at

http://www.es.net/pub/esnet-doc/index.html

[5]

Vollbrecht, Nasir Ghani. INFOCOM 2007, IEEE (TCHSN/ONTC)

[6]

Internet2 BRUW Project: http://discvenue.internet2.edu/wordpress

[7]

GEANT PACE Project: http://pace.geant2.net

[8]

BNL TeraPaths Project: http://www.atlasgrid.bnl.gov/terapaths

[9]

General Atomics QoS Project: http://www.fusiongrid.org/network

[10]

SLAC IEPM Project: http://www-iepm.slac.stanford.edu

[11]

UltraScienceNet Testbed: http://www.usn.ornl.gov

[12]

http://dragon.maxgigapop.net/twiki/bin/view/DRAGON/WebHome

[13]

See www.perfsonar.net and, e.g., "Complementary Visualization of perfSONAR

Network Performance Measurements,"August, 2006. Hanemann, A., Jeliazkov, V.,

Kvittem, O., Marta, L., Metzger, J., Velimirovic, I. Proceedings of the International

Conference on Internet Surveillance and Protection (ICISP), IARIA/IEEE, Cap Esterel,

France, IARIA/IEEE, (best paper award). http://www.es.net/pub/esnet-doc/index.html

[14]

DOEGrids CP/CPS: http://www.doegrids.org/Docs/CP-CPS-v29.pdf

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