1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Discovery methodology
5.1 CP-CP connectivity relationships determination
6 Mechanisms for layer adjacency discovery
7 Attributes used in layer adjacency
8 Layer adjacency based on trail trace string
8.1 Discovery message formats
9 Layer adjacency based on embedded control channel messages
9.1 LAPD-based mechanism
9.2 PPP-based mechanism
9.3 Interoperable solution when using the ECC-based mechanism
10 Procedures
11 Discovery response message
11.1 Miswiring detection
11.2 Misconnection detection
Appendix I – Implementation example of discovery process
I.1 Layer adjacency discovery information flow
Appendix II – Miswiring detection
II.1 Auto discovery procedures
II.2 Example: Interaction between two DAs using different discovery
message formats
Appendix III – Example of discovery response message using generalized
MPLS-based mechanism
Appendix IV – Layer adjacency discovery implementation examples
Appendix V – In-band message encoding example
Appendix VI – Usage of the different discovery mechanisms
VI.1 Introduction
VI.2 Categories of Type 1 layer adjacency discovery use cases
VI.3 Use cases and scenarios
VI.4 Guidelines for mechanisms and procedures
Bibliography