Since the turn of the twentieth century, telecommunications has shifted from traditional voice transport to data transport, although digitized voice is still a large contributor. Instead of an evolution of existing transport standards, a revolution was necessary in order to enable additional data-related transport.
Next Generation SDH/SONET provides a detailed description of the enablers of efficient data transport over any synchronous network. These include virtual concatenation (VCAT), the operation to provide more granularity, and the link capacity adjustment scheme (LCAS), an extension of VCAT that provides more flexibility. Equally, generic framing procedure (GFP), the methodology that efficiently transports asynchronous, or variable bit-rate data signals over a synchronous or constant bit-rate, is explored in detail.
* Describes new extensions to SDH/SONET standards to provide more granularity and flexibility in their structures, enabling the efficient transport of data-related signals such as Ethernet and FICON
* Presents comprehensive sections on the implementation of multi-service transport platforms (MSTP) enabled by VCAT, LCAS and GFP
* Provides valuable advice on how to exploit existing networks to create or extend LANs towards metro (MAN) or wide (WAN) area networks and also to support storage area (SAN) networks
This volume will appeal to manufacturers, engineers and all those involved in developing and deploying SDH, SONET and OTN technology. It will also be an invaluable resource for postgraduate students on network communications courses.
Produkt-Info
Auflage
Sprache
Verlagsort
Zielgruppe
Maße
Höhe: 24.4 cm
Breite: 16.8 cm
Dicke: 1.9 cm
Gewicht
ISBN-13
978-0-470-09120-3 (9780470091203)
Schweitzer Klassifikation
Huub van Helvoort has an M.S.c. in Electrotechnical Engineering from the Technical University of Eindhoven in 1977. He first worked at Philips Telecommunication Industries and then went on to AT&T, developing ASICS and 2 Mbit/s (E1) Unit (DFI), technologies allowing for cost reduction and multi site manufacturing in digital networks.
Helvoort has also worked as System Architect for Lucent technologies working on ISM successors ADM16/1 and Metro ADM (2nd and 3rd generation SDH equipment). In addition he has taught a course in telecommunication technology to post graduate students at the University of Utrecht. The standardisation of VCAT, LCAS and GFP was one of Helvoort's major achievements. He was the representative for Lucent on these subjects in the international standards body ITUT (specifically in Studygroup 15) and the regional standards bodies ANSI T1X1.5 and ETSI TM. He was the editor if ITU-T recommendations G.707, G.783, G.7042. I chaired the working group TM1 and TM1-WP3 in ETSI and was editor of ETSI standard EN 300 417.
Preface.
Acknowledgements.
1 Introduction.
1.1 History.
1.2 Conventions.
2 Concatenation.
2.1 Payload container concatenation.
2.2 Contiguous concatenation.
2.3 Virtual concatenation.
2.4 Applications of concatenation.
3 Link capacity adjustment scheme.
3.1 Introduction.
3.2 LCAS for virtual concatenation.
3.3 Changing the size of a virtual concatenated group.
3.4 LCAS to non-LCAS interworking.
3.5 LCAS control packet details.
4 The LCAS protocol.
4.1 Introduction.
4.2 The size of a VCG.
4.3 The LCAS protocol described using SDL.
5 LCAS time sequence diagrams.
5.1 Introduction.
5.2 Provisioning a member.
5.3 VCG state transition examples.
6 Generic framing procedure.
6.1 Introduction.
6.2 Common aspects of GFP for octet-aligned payloads.
6.3 Client specific aspects for frame-mapped GFP.
6.4 Client specific aspects for transparent-mapped GFP.
6.5 Server specific aspects of GFP.
6.6 GFP PDU examples.
7 Functional models for LCAS and GFP.
7.1 Virtual concatenation functions.
7.2 S4-Xc to S4-Xc interworking function.
7.3 LCAS-capable VCAT functions.
7.4 GFP adaptation functions.
7.5 Equipment models for GFP.
8 The LCAS procedure exercised.
8.1 Basic configuration.
8.2 Exercise 1: Initiate a 3-member VCG.
8.3 Exercise 2: Addition of a member.
8.4 Exercise 3: Removal of a member.
8.5 Exercise 4: Member failure.
8.6 Exercise 5: Member recovery.
8.7 Exercise 6: Network degraded.
8.8 For further study.
8.9 Configuration with LCAS disabled.
Glossary.
References.
Index.
