1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
4 Abbreviations and acronyms
5 Conventions
6 General introduction to packet-based frequency distribution
6.1 Requirements for packet timing
7 Architecture of packet-based frequency distribution
7.1 Packet-based frequency distribution
7.2 Timing protection
7.3 Packet network partitioning
7.4 Mixed technologies
8 Packet-based protocols for frequency distribution
8.1 Packet-based protocols
8.2 PTP [IEEE 1588] general description
8.3 NTP – General description
9 Security aspects
Appendix I – Bibliography