Understanding SONET / SDH and ATM

Communications Networks for the Next Mellennium

Electrical Engineering Understanding SONET/SDH and ATM Communications Networks for the Next Millennium Optical communications and fiber technology are fast becoming key solutions for the increasing bandwidth demands of the 21st century. This introductory text provides practicing engineers, managers, and students with a useful guide to the latest developments and future trends of three major technologies: SONET, SDH and ATM, and a brief introduction to legacy TDM communications systems. You will find clear explanations of: * The role of Internet protocol (IP) networking with ATM * Dense wavelength division multiplexing (DWDM) * How different packet types are mapped onto ATM * How ATM is mapped onto SONET/SDH * The future direction of convergence of communications This concise book features chapters complete with easy-to-follow illustrations, review questions, worked examples, and valuable references. An accompanying CD-ROM provides the key figures in full color, suitable for easy cut-and-paste presentations. Understanding SONET/SDH and ATM is a must-read for information technology, telecommunications, and communications professionals who want to improve their knowledge of this emerging technology.

Examples are the stock and banking industry and transfer of corporate voice / data to a small set of destinations . Figure 16.6 illustrates VCS in a simplified way . Notice that the VPI and VCI do not remain constant throughout the ...