1
Scope
2 References
3 Terms and definitions
4 Abbreviations
5 Application of the G.805 layering
concept
5.1 Multiplexing of multiple clients
5.2 Support of ATM over SDH
5.3 Concatenation
5.3.1 Contiguous concatenation
5.3.2 Virtual concatenation
5.3.3 Interworking between contiguous and virtual concatenation
6 Connection supervision
6.1 Inherent monitoring
6.2 Non-intrusive monitoring
6.3 Sublayer monitoring
7 SDH transport network availability
enhancement techniques
7.1 SDH multiplex section protection
7.1.1 SDH multiplex section 1+1 protection
7.1.2 SDH multiplex section 1:N protection
7.1.3 SDH multiplex section shared protection rings
7.1.4 SDH multiplex section dedicated rings
7.2 SDH subnetwork connection protection
examples
8 Architecture of synchronization
networks
8.1 Introduction
8.2 Synchronization network aspects
8.2.1 Synchronization methods
8.2.2 Synchronization network architecture
8.2.3 Synchronization modes
8.2.4 Synchronization network reference chain
8.2.5 Synchronization strategy
8.2.6 Synchronization network evolution
8.2.7 Synchronization network robustness
8.3 Payload jitter and wander
8.3.1 SDH network model for pointer activity simulation
8.3.2 Jitter at a SDH/PDH boundary
8.4 PDH/SDH interworking implications
9 Selection of a primary rate
mapping
Appendix I – Client server associations of SDH layer
networks
Appendix II – Introduction of SDH-based transport
networks
II.1 General
II.2 Types of client layer signals
II.2.1 SDH case
II.2.2 PDH case
II.3 Initial introduction of SDH-based
equipment
II.4 Interworking between PDH- and
SDH-based transport networks
II.4.1 Interworking levels
II.4.2 SDH overlay
II.4.3 SDH DXC/ADMs
II.4.4 SDH line systems
II.5 Introduction of STM-N interfaces
on 64 kbit/s switches (and DXCs)
Appendix III – Guidelines for synchronization network
engineering
III.1 Introduction
III.2 Purpose of the synchronization
network
III.3 Requirements for synchronization
networks
III.4 Analysis of synchronization
networks
III.5 PRC-Level options
III.6 SSU-Level solutions
III.6.1 Checking reference provisionings at the SSU-Level
III.6.2 Absolute frequency offset guarding
III.7 SEC-Level solutions
III.7.1 Application of the SSM protocol in the SSU-Level
III.7.2 Examples of SEC subnetworks with SSM parameters
III.8 Synthesis of the synchronization
network
III.9 Definitions used in Appendix III