Dynamic synchronous transfer mode (DTM) is an optical networking technology standardized by the
European Telecommunications Standards Institute
The European Telecommunications Standards Institute (ETSI) is an independent, not-for-profit, standardization organization in the field of Information and communications technology, information and communications. ETSI supports the developmen ...
(ETSI) in 2001 beginning with specification ''ETSI ES 201 803-1''. DTM is a
time-division multiplexing
Time-division multiplexing (TDM) is a method of transmitting and receiving independent signals over a common signal path by means of synchronized switches at each end of the transmission line so that each signal appears on the line only a fracti ...
and a
circuit-switching
Circuit switching is a method of implementing a telecommunications network in which two network nodes establish a dedicated communications channel ( circuit) through the network before the nodes may communicate. The circuit guarantees the full ...
network technology that combines switching and transport. It is designed to provide a guaranteed
quality of service
Quality of service (QoS) is the description or measurement of the overall performance of a service, such as a telephony or computer network, or a cloud computing service, particularly the performance seen by the users of the network. To quantitat ...
(QoS) for
streaming video
Video on demand (VOD) is a media distribution system that allows users to access videos without a traditional video playback device and the constraints of a typical static broadcasting schedule. In the 20th century, broadcasting in the form of o ...
services, but can be used for packet-based services as well. It is marketed for professional media networks, mobile TV networks, digital terrestrial television (DTT) networks, in
content delivery network
A content delivery network, or content distribution network (CDN), is a geographically distributed network of proxy servers and their data centers. The goal is to provide high availability and performance by distributing the service spatially re ...
s and in consumer oriented networks, such as "
triple play
In baseball, a triple play (denoted as TP in baseball statistics) is the act of making three outs during the same play. There have only been 733 triple plays in Major League Baseball (MLB) since 1876, an average of just over five per season.
Th ...
" networks.
History
The DTM architecture was conceived in 1985 and developed at the
Royal Institute of Technology (KTH) in
Sweden
Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...
.
It was published in February 1996.
The research team was split into two spin-off companies, reflecting two different approaches to use the technology. One of these companies remains active in the field and delivers commercial products based on the DTM technology. Its name is Net Insight.
See also
*
Broadband Integrated Services Digital Network
In the 1980s, the telecommunications industry expected that digital services would follow much the same pattern as voice services did on the public switched telephone network, and conceived an end-to-end circuit switched service, known as Broadband ...
References
Further reading
*
* {{cite web , title= Towards a Media Extranet , author1= P. Lindgren , author2= C. Bohm , author3= S. Jörbeck , author4= J. Antell , date= 20 August 2002 , publisher= Net Insight AB , url= http://broadcastpapers.com/whitepapers/IBCNetInsightMediaExtranet.pdf , url-status= dead , archive-url= https://web.archive.org/web/20111009134052/http://broadcastpapers.com/whitepapers/IBCNetInsightMediaExtranet.pdf , archive-date= 9 October 2011
External links
IHS web page listing for ETSI ES 201 803- 6Paper from the founder of the Topology (in postscript format)
Network protocols
Link protocols