Summary

Amendment 2 to Recommendation ITU-T G.872 provides modifications to clause 9 to describe the resources used to convey ODUk signals as a single layer network. This revised clause also describes the new 1.25 Gbit/s TS structure and some considerations on interworking with the existing 2.5 Gbit/s. The new ODUk signals, e.g., ODU0, ODU4 and ODUflex are also described. A new Appendix IV describes some multi‑domain network examples.