The ComSoc Guide to Next Generation Optical Transport SDH/SONET/OTN

by van Helvoort, Huub

• ISBN13: 9780470226100
• ISBN10: 0470226102
• Edition: 1st
• Format: Paperback
• Copyright: 2009-10-12
• Publisher: Wiley-IEEE Press

Summary

SONET is the American National Standards Institute standard for synchronous data transmission on optical media. The international equivalent of SONET is synchronous digital hierarchy (SDH). Together, they ensure standards so that digital networks can interconnect internationally and that existing conventional transmission systems can take advantage of optical media through tributary attachment. This is the perfect overview for engineers who are new to the field of SDH, as well as manufacturers, network operators, and graduate students who need a basic understanding of SDH. References are included for further reading.

Author Biography

Huub van Helvoort, MSEE, Eindhoven University of Technology, is a Senior Member of the IEEE. He has worked at Philips Telecommunication Industries, AT&T, Lucent Technologies, TranSwitch Corporation, and Huawei Technologies. He is a designer and architect of second- and third-generation SDH equipment and devices. In addition, he has taught telecommunication technology to post graduate students at the University of Utrecht in the Netherlands. Among van Helvoort's major achievements is the standardization of VCAT, LCAS, and GFP. He represented the above companies in the international standards body ITU-T and the regional standards bodies ANSI OPTXS and ETSI. He is currently rapporteur of ITU-T Q10: "OAM for Transport Networks" and editor of several ITU-T recommendations.

Table of Contents

Preface	p. xi
Introduction To Optical Transport	p. 1
History	p. 2
Conventions	p. 4
Standard Documents from Different SDOs	p. 9
Network Architectures: The Structure of The Network	p. 11
Network Topology	p. 11
Network Functional Model	p. 18
Frames and Structures: Transport in Containers	p. 27
SDH Frames and Structures	p. 27
OTN Frames and Structures	p. 41
PDH Frame Structures	p. 45
PTN Frame Structures	p. 48
Network Modeling: Layers and Atomic Functions	p. 53
The Synchronous Digital Hierarchy SDH	p. 53
The SDH Higher Order Path (Sn) Layer	p. 54
The SDN Lower Order Path (Sm) Layer	p. 64
The SDB Multiplex Section (MSn) Layer	p. 67
The SDH Regenerator Section (RSn) Layer	p. 75
The SDH Optical Section (OSn) Layer	p. 80
The SDN Electrical Section (ES1) Layer	p. 82
The Layers Below the SDH OSn and ES1 Layer	p. 83
The Optical Transport Network OTN	p. 83
The OTN Optical Channel Data Unit Layer (ODUk)	p. 84
The OTN Optical Channel Transport Unit Layer (OTUk)	p. 95
The OTN Optical Channel Layer (OCh)	p. 97
The OTN Optical Channel Multiplex Section Layer (OMSn)	p. 100
The OTN Optical Transmission Sector Layer (OTSn)	p. 102
The OTN Optical Physical Section Layer (OPS)	p. 103
Packet Transport Network Modeling: Extending The Model to NGN	p. 105
The Generic PTN Layer	p. 106
The PTN-Specific OAM Traffic Units	p. 111
Frequency Justification: Pointers and Stuffing	p. 113
Pointer Processing	p. 114
Bit Stuffing	p. 123
Positive and Negative Justification	p. 124
Protection Mechanisms: Improve Availability	p. 127
Availability	p. 127
Protection Architectures	p. 128
Protection Claases	p. 132
Mapping Methodologies: Fitting The Payload in The Container	p. 149
SDH/SONET-Container C-n Mapping	p. 149
OTN-Container OPUk Mapping	p. 153
GFP Mapping	p. 155
Concatenation: To Grow and Provide Flexibility	p. 161
Contiguous Concatenation (CCAT)	p. 161
Virtual Concatenation (VCAT)	p. 163
Link Capacity Adjustment Scheme (LCAS)	p. 168
SDH Vs. SONET Overhead Processing: Commonalities and Differences	p. 171
Abbreviations	p. 191
References	p. 199
Bibliography	p. 203
Index	p. 205
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