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Core network aspects 1

Annex A

Multi-layer management functional components details
(This annex forms an integral part of this Recommendation.)

This annex describes in more detail multi-layer management functional components identified in clause 7.4.
Each of these functional components is decomposed into functional elements that represent a logical
functionality provided by the functional component, independent of any implementation.

A.1 Application layer management functional component
Figure A.1 shows the functional elements of the ALM functional component.

Figure A.1 – Functional elements of the ALM functional component

A.1.1 Application layer support functional element
The AL support functional element provides an MMFA reference point to the AL-MSO functional component
(see clause 7.1.2) which is used for requesting and receiving management operations and associated
information to/from the SDN-AL.
A.1.2 Application layer resource discovery functional element

The AL resource discovery functional element is responsible for discovering applications and relevant SDN-
AL resources, such as application codes under execution, or functional components used in the SDN-AL, and
provides capabilities for discovering application and the resources in the SDN-AL. The discovered resources
are stored in the AL resource repository functional element.

A.1.3 Application layer resource monitoring and analytics functional element
The AL resource monitoring and analytics functional element is responsible for collecting the status and
events of SDN-AL resources and analyzing them for the purpose of fault, quality, and security management.
It provides capabilities for:

– monitoring the activities, status, anomalous events of the application and relevant SDN-AL
resources;

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