OAM Operation and Maintenance Overview — oam master documentation

# OAM Operation and Maintenance Overview

The O-RAN SC OAM project provides administrative and operator functions for O-RAN components, such as Near-Realtime-RAN-Intelligent-Controller, O-RAN Centralized Unit, O-RAN Distributed Unit and O-RAN Radio Unit.

The project follows the specifications for the O1 interface as provided by O-RAN Working Group 1 (new 10).

The O-RAN-SC OAM project adds features and functions to the OpenDaylight-based ONAP controller ‘CCSDK/SDNC’. It is built on the Common Controller Framework to control and to manage O-RAN ManagedElements and O-RAN ManagedFunctions.

SDN-R in ONAP

## Project Resources

The project uses the following Linux Foundation resources:

- The source code is maintained in this Gerrit:

    https://gerrit.o-ran-sc.org/r/admin/repos/oam

- The build (CI) jobs are in this Jenkins:

    https://jenkins.o-ran-sc.org/view/oam/

- Issues are tracked in this Jira:

    https://lf-o-ran-sc.atlassian.net/jira/projects/OAM/issues

- Project information is available in this Wiki:

    https://lf-o-ran-sc.atlassian.net/wiki/spaces/OAM/overview

## Scope

According to the O-RAN-OAM-Architecture document all ManagedElements (ME) (near-real-time-RIC, O-CU-CP, O-CU-UP, O-DU and O-RU) implement the O1-interface.

The O-RAN-OAM-interface specification defines

- a NetConf-Server for Configuration Management (CM) and

- a http-client for Fault Management (FM), Performance Management (PM) and other events on each Management-Service-Provider (MnS-Provider) running on the ManagedElement.

THe O-RAN-SC-OAM project provides reference implementation according to the O-RAN OAM documents. In addition it provides a lightweight MnS-Consumer for development and module test purposes. The assumption is that the projects for the ManagedElements can concentrate on the more important user-plane.

Each project requires its own OAM repository to address the specific needs of the ManagedFunction.

The following O-RAN specifications are considered during implementations:

Workgroup | Specification | Version
--- | --- | ---
WG1 - Use Cases and Overall Architecture | O-RAN Architecture Description | 3.0 - November 2020
O-RAN Operations and Maintenance Architecture | 4.0 - November 2020
O-RAN Operations and Maintenance Interface | 4.0 - November 2020
O-RAN Information Model and Data Models Specification | November 2020
WG4 - The Open Fronthaul Interfaces | O-RAN Open Fronthaul Conformance Test Specification | 2.00 - November 2020
O-RAN Management Plane Specification | 5.0 - November 2020
O-RAN Management Plane Specification - YANG Models | 5.0 - November 2020
TIFG - Test & Integration Focus Group | O-RAN End-to-End System Testing Framework Specification | 1.0 - July 2020