This document discusses Dynamic Synchronous Transfer Mode (DTM), a networking technology designed to efficiently use the high transmission capacity of optical fibers. DTM aims to provide high-speed networking with adaptive bandwidth and support for real-time multimedia traffic like audio and video. It is intended to increase fiber usage by reducing network complexity compared to traditional circuit switching and packet switching approaches. The future of DTM involves supporting the hundreds of wavelengths that will be carried by single fibers in the near future.

2.  INTRODUCTION
 WHY DTM?
 BASICS: CIRCUIT SWITCHING v/s PACKET
SWITCHING
 DTM APPLICATIONS
 FUTURE OF DTM
 REFERENCES

4.  DYNAMIC SYNCHRONOUS TRANSFER MODE
(DTM).
 An exciting networking technology.
 Made to provide high speed networking with
top quality transmission and ability to adapt
the bandwidth to traffic variations quickly.

5.  Transmission capacity of optical fibers is
growing faster than processing capacity of
computers.
 DTM is designed to increase the use of fibers
transmission capacity and to provide support
for real-time broadband traffic and
multicasting.

7.  CIRCUIT SWITCHING :
 In circuit-switched networks, network
 resources are reserved all the way from
sender before start of the transfer,thereby
creating a circuit.
 For eg. Traditional telephone services.

8.  Packet switching:
 Data is divided into packets.
 Each contains address, size, sequence.
 The packets are sent through the network.
 Packet switched networks are based either on
connectionless or connection oriented
technology.

10.  Transmission of data such as audio and video
both in real time.
 High speed communication.
 Increases the use of fibre transmission
capacity.
 Provide support to real time broadband.

11.  Dense wavelength division multiplexing
equipments today carry only few
wavelengths, 40 to 100 wavelengths carried
on one single fiber will be possible in near
future.
 DTM aims to reduce network complexity to
provide full access to available bandwidth.

12.  The International Engineering Consortium
 http://www.iec.org/cgi-
bin/acrobat.pl?filecode=37
 Telecom Standards
 http://www.etsi.org/frameset/home.htm?/tec
hnicalactiv/DTM/dtm.htm
 European Telecommunications Standards
Institute
 http://webapp.etsi.org/action%5CMV/MV200
21220/es_20180304v010101m.pdf