1
Scope
2
References
3
Definitions
4
Abbreviations and
acronyms
5
Conventions
6
Network objectives
7
Architecture types
7.1
T-MPLS trail protection
7.2
T-MPLS SNCprotection
8 Switching types
8.1
Unidirectional switching type
8.2
Bidirectional switching type
9
Operation types
9.1
Non-revertive operation
9.2
Revertive operation
10 Automatic protection switching (APS)
protocol
10.1 APS payload structure
10.2 APS protocol type
11
Application architectures
11.1
Unidirectional 1+1 trail protection switching
11.2 Bidirectional
1:1 trail protection switching
11.3 Unidirectional 1+1 SNC/S protection switching
11.4 Bidirectional 1:1 SNC/S protection switching
12
Protection switching
trigger mechanism
12.1
Manual control
12.2
Signal fail declaration conditions
13
APS switch initiation
criteria
13.1 Externally initiated commands
13.2 States
14
Security aspects
Appendix I – Selector
types
I.1
Selective selector
I.2
Merging selector
Bibliography