1
Scope
2
References
3
Definitions
4
Abbreviations
5
Discovery methodology
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
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