Summary

Recommendation ITU-T G.7711/Y.1702 specifies a core information model (IM) of transport resources. The IM is applicable to the management and control of transport networks regardless of whether they utilize traditional operation support system (OSS) management, an automatically switched optical network (ASON) control plane or a software-defined networking (SDN) controller to configure transport connectivity. The model is also applicable regardless of the technology of the underlying transport network. Furthermore, the applicability of the IM is independent of the ultimate protocols that will be used in the management and control interfaces.

The 2016 edition of this Recommendation changed the document structure, added an "experimental" address structure to the foundation model, changed the name of TopologicalEntity to ForwardingEntity, incorporated ForwardingConstruct (FC) under ForwardingEntity and considers FC as closely related to topology, added the resilience model, added the equipment model and added the specification model.

The 2018 edition of this Recommendation enhanced the forwarding and termination, foundation, topology, resilence, equipment and specification models, added the control, operations pattern, processing construct, constraint domain models, and also updated the model description appendices. Clauses IV.6, "Synchronization management model" and IV.7, "Media management model", have been removed from this edition as they are now covered by separate Recommendations.

The 2021 edition of this Recommendation has added Annex M, the Party model, Annex N, the Location model, and Annex Q, the Foundation – State. It also improves significantly the model structure to align the UML with the documents. The modelling tool has been up-versioned to Eclipse 4.13.0 (2019-09) and Papyrus 4.5.0.