Virtual Channel Identifier ATM Layer

www.pragsoft.com Chapter 13: Broadband ISDN and ATM 175 blocks, where each block is mapped to one cell. It is intended for continuous data at low rates. The message mode service is suitable for framed data e.g., from LAP- D. Each frame is mapped to one or more cells.

12.5.2. Convergence Sublayer

The convergence sublayer is responsible for a variety of functions depending on which of the AAL protocol types described above is used, including the following: • Indication of the information contained by CS PDUs. • Segmenation and reassembly of higher layer PDUs into CS PDUs. • Handling of lost of misinserted cells following their detection by the SAR sublayer. • Detection of corrupted CS PDUs and their proper handling. • Explicit time indication through time stamps as required by some services. • Clock recovery as required by some services.

12.6. B-ISDN Standards

12.7. Further Reading

An introductory coverage of B-ISDN and ATM can be found in Minzer 1989, De Prycker 1991, Van Duuren et al 1992, Stallings 1992, and Onvural 1994. Kessler 1993 and Handel and Huber 1994 provide a wide coverage of ATM protocols and standards. Ballart and Ching 1989, Stallings 1992, Spohn 1993 describe SONET. De Prycker et al 1993 relate B-ISDN to the OSI reference model. Ahmadi and Denzel 1989 and Rooholamini et al 1994 describe a number of ATM switching techniques and products. Onvural 1994 presents an in-depth treatment of ATM network performance issues. Viniotis and Onvural 1993 is a useful collection of paper on ATM networks. 160 Communication Networks Bibliography 12, Ahmadi, H. and Denzel W. E. 1989 ‘A Survey of Modern High-Performance Switching Techniques,’ IEEE Journal on Selected Areas in Communications, Vo. 77, pp. 1091-1103. 12 Ballart, R. and Ching, Y. 1989 ‘SONET: Now It’s the Standard Optical Network,’ IEEE Communications Magazine, March issue, pp. 10 Bellamy, J. 1991 Digital Telephony, Second Edition, Wiley, NY. 2 Bic, J. C., Duponteil, D., and Imbeaux, J. C. 1991 Elements of Digital Communication, Wiley, Chichester, UK. 2 Black, U. 1988, Physical Level Interfaces and Protocols, IEEE Computer socienty Press, Washington DC. 1, 3 Black, U. 1989, Data Networks: Concepts, Theory, and Practice, Prentice Hall, Englewood Cliffs, NJ. 11 Black, U. 1994 Frame Relay Networks: Specification and Implementation, McGraw-Hill, NY. 4 Black, U. 1992 TCPIP and Related Protocols, McGraw-Hill, NY. 2 Blahut R. 1990 Digital Transmission of Information, Addison-Wesley, Reading, MA. 1 Brown, W., Simpson, C., and Black, U. 1993 The OSI Dictionary of Acronyms and Related Abbreviations, McGraw-Hill, NY. 10 Bush, S. and Parsosns, C. 1992 Private Branch Exchange Systems and Applications, McGraw-Hill, NY. 11 Chen, K. and Rege, K. 1989 ‘A Comparative Performance Study of Various Congestion Controls for ISDN Frame Relay Networks,’ Proceedings IEEE INFOCOM ’89, April. 8 Chilton, P. A. 1989 Introducing X.400, NCC Publications, Manchester, UK. 9 Chorafas, D. 1989 Local Area Network Reference, McGraw-Hill, NY.