Summary:

This document enhances the ACTN architecture as applied to optical networks by introducing support for FCAPS. It considers which elements of existing IETF YANG work can be used to solve existing scenarios and emerging technologies, and what new work may be needed. In doing so, this document adds rich-detail network management (RDNM) to the ACTN architecture. This enhanced architecture may then be used to evolve networks from CORBA and MTOSI FCAPS interfaces to IETF-based YANG and RESTful APIs.

This draft incorporates FCAPS to ACTN for optical network management. 


Major issue:

I reviewed the latest version of the draft, however as FCAPS is a very general and historical term.  I am not sure why NMS or any other acronym was used which would be better suited for modern optical networks.

My recommendation from the review is to change from any reference to FCAPS and use NMS.

This document should also focus on ACTN RDNM.

I read through IT-UT G.805, G.3060 and as the specifications are extremely genera in nature I would recommend removal of tbt two references.

In the realm of modern optical networks, both FCAPS and Network Management Systems (NMS) are relevant, but in distinct ways. 
FCAPS (Fault, Configuration, Accounting, Performance, Security) is a framework or model that defines the key functional areas of network management. It provides a structured approach for managing telecommunication networks. While traditionally considered a legacy model, its principles are still crucial for understanding and addressing the various aspects of network management in optical networks.  
Network Management Systems (NMS), on the other hand, are the actual systems or applications that enable network operators to monitor, configure, and maintain communication networks. NMS software tools implement the principles defined by frameworks like FCAPS to perform these functions.  

Which is more relevant today?
While FCAPS provides the theoretical foundation for network management, NMS are the tangible tools that are actively used to manage modern optical networks. NMS are evolving to incorporate new technologies like AI, machine learning, and automation to handle the increasing complexity of optical networks. 

Here's a breakdown of their relevance in modern optical networks:

NMS are more directly relevant for day-to-day operations: NMS tools provide the actual functionality for tasks such as provisioning services, monitoring network health, identifying and resolving faults, optimizing performance, and ensuring security.
FCAPS still provides a useful framework: Understanding FCAPS generalizations helps  evaluate the capabilities and functions of different NMS tools. It provides a standardized way to categorize and address various management tasks within the NMS.

NMS implement FCAPS principles: 

A robust NMS will provide functionality that aligns with the FCAPS framework, ensuring comprehensive network management across all key areas. 

In essence, FCAPS is the "what" of network management, while NMS is the "how". 

Modern optical networks rely on NMS to efficiently manage their complex infrastructure, but the underlying principles of FCAPS remain relevant in guiding these management efforts. 

Modern NMS for optical networks often incorporates advanced capabilities: 

Automation: Automating tasks like routing, spectral assignment, and failure management to improve efficiency and reduce costs.

AI/ML: Utilizing algorithms for predictive maintenance, anomaly detection, and real-time optimization of network performance.

Integration: Providing modular and open architectures to encompass multiple layers, technologies, and vendors.
Cloud-based solutions: Enabling remote management, flexibility, and scalability. 

Therefore, while FCAPS provides a very historical archaic conceptual model, NMS are the indispensable tools for managing modern optical networks effectively and efficiently.