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ITU-T G.873.2

ODUk shared ring protection

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Organization: ITU-T
Publication Date: 1 August 2015
Status: active
Page Count: 108
scope:

This Recommendation describes the automatic protection switching (APS) protocol to support optical channel 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.

Document History

ITU-T G.873.2
August 1, 2015
ODUk shared ring protection
This Recommendation describes the automatic protection switching (APS) protocol to support optical channel data unit k (ODUk) shared ring protection (SRP) in the optical transport network (OTN)....
G.873.2 AMD 1
October 1, 2012
(Pre-Published) Optical Transport Network (OTN) - Ring Protection Amendment 1
A description is not available for this item.
ITU-T G.873.2
April 1, 2012
ODUk shared ring protection
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...

References

This document references:
ITU-T Y.1331 - Interfaces for the optical transport network
Published by ITU-T on June 1, 2020
The optical transport network (OTN) supports the operation and management aspects of optical networks of various architectures, e.g., point-to-point, ring and mesh architectures. This Recommendation...
This document references:
ITU-T G.709 - Interfaces for the optical transport network
Published by ITU-T on June 1, 2020
The optical transport network (OTN) supports the operation and management aspects of optical networks of various architectures, e.g., point-to-point, ring and mesh architectures. This Recommendation...
This document references:
ITU-T G.872 - Architecture of the optical transport network Amendment 1
Published by ITU-T on January 1, 2021
This Recommendation describes the functional architecture of the optical transport network (OTN) using the modelling methodology described in [ITU-T G.800], [ITU-T G.805] for the digital layer...
This document references:
ITU-T G.798 - Characteristics of optical transport network hierarchy equipment functional blocks
Published by ITU-T on December 1, 2017
This Recommendation covers the functional requirements of optical transport network functionality within equipment. This Recommendation uses the specification methodology defined in [ITU-T G.806], in...
This document references:
ITU-T G.709 - Interfaces for the optical transport network
Published by ITU-T on June 1, 2020
The optical transport network (OTN) supports the operation and management aspects of optical networks of various architectures, e.g., point-to-point, ring and mesh architectures. This Recommendation...
This document references:
ITU-T G.798 - Characteristics of optical transport network hierarchy equipment functional blocks
Published by ITU-T on December 1, 2017
This Recommendation covers the functional requirements of optical transport network functionality within equipment. This Recommendation uses the specification methodology defined in [ITU-T G.806], in...
This document references:
ITU-T G.805 - Generic Functional Architecture of Transport Networks Series G: Transmission Systems and Media, Digital Systems and Networks Digital Networks - General Aspects
Published by ITU-T on March 1, 2000
A telecommunications network is a complex network which can be described in a number of different ways depending on the particular purpose of the description. This Recommendation describes the...
This document references:
ITU-T G.806 - Characteristics of transport equipment – Description methodology and generic functionality Corrigendum 2
Published by ITU-T on April 1, 2016
A description is not available for this item.
This document references:
ITU-T G.808.1 - Generic protection switching – Linear trail and subnetwork protection
Published by ITU-T on May 1, 2014
This Recommendation provides an overview of generic aspects of linear protection switching. It covers protection schemes applicable to circuit-switched and packet-switched layer networks; e.g.,...
This document references:
ITU-T G.872 - Architecture of the optical transport network Amendment 1
Published by ITU-T on January 1, 2021
This Recommendation describes the functional architecture of the optical transport network (OTN) using the modelling methodology described in [ITU-T G.800], [ITU-T G.805] for the digital layer...
This document references:
ITU-T Y.1331 - Interfaces for the optical transport network
Published by ITU-T on June 1, 2020
The optical transport network (OTN) supports the operation and management aspects of optical networks of various architectures, e.g., point-to-point, ring and mesh architectures. This Recommendation...
This document is referenced by:
ITU-T G.808 - Terms and definitions for network protection and restoration Amendment 1
Published by ITU-T on March 1, 2018
A description is not available for this item.
This document is referenced by:
ITU-T G.873.3 - Optical transport network – Shared mesh protection
Published by ITU-T on September 1, 2017
This Recommendation defines the protection switching operation and associated protocol for shared mesh protection at the optical data unit (ODU) layer. The ODU shared mesh protection (SMP) mechanism...
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