Name:
ITU-T G.873.2 PDF
Published Date:
04/01/2012
Status:
[ Revised ]
Publisher:
International Telecommunication Union-T
This Recommendation describes the automatic protection switching (APS) protocol to support optical data unit k (ODUk) shared ring protection (SRP) in the optical transport network (OTN).
Shared ring protection provides two types of switching: SRP-1 with 1 ODU per lambda, and SRP-p with p ODUs per lambda. SRP protects ODUs within a physical ring with ODU cross-connects.
The interconnects are in general of type optical transport module-n (OTM-n), as specified in [ITU-T G.709]. The network objectives are given in Annex A.
| Edition : | 12 |
| Number of Pages : | 112 |
| Published : | 04/01/2012 |