Page 311 - Big data - Concept and application for telecommunications

Big data - Concept and application for telecommunications 5

A.2.2 Control layer resource discovery functional element

The CL resource discovery functional element is responsible for discovering control resources in the SDN-CL.
It provides capabilities for:
– discovering control resources in the SDN-CL. The discovered resources are stored in the CL resource
repository functional element.

A.2.3 Control layer resource repository functional element
The CL resource repository functional element is responsible for storing the contents discovered by the
resource discovery and bootstrapping and managing the lifecycle of the contents in the repository. It provides
capabilities for:
– storing and providing APIs for querying the contents discovered by the CL resource discovery
functional element;
– storing and providing APIs for querying the contents generated by the CL resource monitoring and
analytics functional element;
– ensuring lifecycle management of the contents in the repository (e.g., creation by storing,
modification, deletion).

A.2.4 Control layer resource monitoring and analytics functional element
The CL resource monitoring and analytics functional element is responsible for collecting the status and
events of SDN-CL resources and analyzing them for the purpose of performance, fault, and security
management. It provides capabilities for:
– monitoring the activities, status, abnormal events of the control resources in the SDN-CL;
– analyzing the monitored data and providing reports on the behaviour of the resources, which can
take the form of alerts for abnormal behaviour which has a time-sensitive aspect (e.g., the
occurrence of a fault, the completion of a task), or it can take the form of aggregated forms of
historical data (e.g., resource usage data);
– storing and retrieving monitored data and analysis reports as logging records in the CL resource
repository.

A.2.5 Control layer configuration management functional element
The CL configuration management functional element is responsible for configuration management of the
SDN-CL and provides capabilities for:
– provisioning control resources in the SDN-CL;
– scaling in/out of control resources based on the demand and availability.

A.2.6 Control layer fault management functional element
The CL fault management functional element is responsible for fault management of the SDN-CL. It provides
capabilities for:
– detecting anomalous events which cause failure of the SDN-CL resources;
– analyzing a root cause regarding the failure of the SDN-CL resources;

– generating failure resolving policies and interact with control and provisioning functional
components in the SDN-CL for the actual healing actions.

A.2.7 Control layer performance management functional element
The CL performance management functional element is responsible for ensuring performance of the SDN-CL
resources. It provides capabilities for monitoring and ensuring performance of the SDN-CL resources based
on the given KPIs.

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