1
Scope
2
References
3
Definitions
3.1
Terms defined elsewhere
3.2
Terms defined in this Recommendation
4
Abbreviations and acronyms
5
Methodology
6
Supervision
6.1
Alarm reporting control
6.2
Defects
6.3
Consequent actions
6.4
Defect correlations
6.5
Performance filters
7
Information flow across reference points
8
Generic processes
8.1
Scrambling processes
8.2
Alignment processes
8.3
Signal quality supervision
8.4
BIP correction
8.5
OTUk forward error correction (FEC) processing
8.6
Trail trace identifier (TTI) processing
8.7
Payload structure indication (PSI) acceptance processes
8.8
Status information (STAT) acceptance process
8.9
Generic AIS generation and detection
8.10
Generic layer fault processing
8.11
Optical signal processing
9
Optical transmission section (OTS) layer functions
9.1
Connection functions
9.2
Termination functions
9.3
Adaptation functions
10
Optical multiplex section (OMS) layer functions
10.1
Connection functions
10.2
Termination functions
10.3
Adaptation functions
10.4
Sub-layer functions
11
Optical physical section (OPS) layer functions
11.1
Connection functions
11.2
Termination functions
11.3
OPS0 to OChr adaptation function (OPS0/OChr_A)
12
OCh (layer) functions
12.1
Connection functions
12.2
Termination functions
12.3
Adaptation functions
12.4
Layer functions
13
OTU (layer) functions
13.1
Connection functions
13.2
Termination functions
13.3
Adaptation functions
13.4
Sub-layer functions
14
ODU (layer) functions
14.1
Connection functions
14.2
Termination functions
14.3
Adaptation functions
14.4
COMMS functions
14.5
Sub-layer functions
14.6
Virtual concatenation functions
Annex A – Optical section (OSx) and constant bit rate (CBRx) layer
functions
A.1
Connection functions
A.2
Termination functions
A.3
Adaptation functions
Appendix I – Applications and functional diagrams
I.1
Transparent CBRx tributary interface port with optional SDH RS
non-intrusive monitor on OTN equipment
I.2
OTM-0.m tributary interface port on OTN equipment
I.3
Selectable CBRx/OTM-0.m tributary interface port on OTN equipment
I.4
OTM-0.m interface ports on non-OTN equipment
I.5
OTM-n.m interface port with 3-R regeneration functionality for an ODUk
connection function
Appendix II – TCM applications
Appendix III – Performance of processes
III.1
Introduction
III.2
OTUk frame alignment process
III.3
STAT acceptance process and related defect detection (ODUkP/TdAIS,
ODUkP/TdOCI, ODUkP/TdLCK, ODUkTdLTC, ODUkTdIAE)
III.4
OTUkdIAE, OTUkdBDI, ODUkP/TdBDI detection
III.5
PT acceptance process and ODUkPdPLM detection
III.6
Generic AIS and OTUk AIS detection
Page
III.7
OTUkdBIAE and ODUkTdBIAE detection process
Appendix IV – TTI processing examples
IV.1
Example 1
IV.2
Example 2
Appendix V – Client services of sub ODU1 rate mapping into OTN using
higher order virtual container mapping
V.1
Description of the application
V.2
ODUk/Sn compound function
V.3
Migration from SDH towards OTN networking
Appendix VI – OCH client mapping of pre-OTN signals
VI.1
OCh to CBRx adaptation (OCh/CBRx_A)
VI.2
OCh to GbE adaptation function (OCh/GbE_A)
VI.3
OCh to RSn adaptation (OCh/RSn_A)
Bibliography