1
Scope
2 References
3 Terms and definitions
4 Abbreviations
5 Recovery mechanisms for
international multiplex sections
5.1 Multiplex section protection
5.1.1 Automatic switching to alternative MS
5.1.2 Forced switching to alternative MS
5.1.3 Switching time (automatic switching)
5.1.4 Criteria for automatic return to normal in the case of automatic
protection (revertive)
5.2 Multiplex section restoration
6 Recovery mechanisms for
international connections in the SDH VC trail layer
6.1 Subnetwork connection recovery
mechanisms
6.1.1 Automatic protection for subnetwork connections
6.1.2 Manual protection for subnetwork connections
6.1.3 Subnetwork connection recovery times
6.2 VC trail recovery mechanisms
6.2.1 VC trail protection
6.2.2 VC trail restoration
6.2.3 VC trail recovery times
6.3 VC trail restoration during
maintenance activities
6.4 VC trail restoration exercises
6.5 High priority and pre-emptible VC
trails
Appendix I -
Bibliography
Appendix II - Manual
restoration using Digital Cross-Connect Equipment