The following are the major entities in the LSO Reference Architecture:


BUS: Business Applications

The provider functionality supporting Business Management Layer functionality (e.g., Product Catalog, Ordering, Billing, Relationship Management, etc.)


CUS: Customer Application Coordinator

Responsible for coordinating the management of the various service needs (e.g., compute, storage, network, etc.) of specific applications in the Customer Domain.


ECM: Element Control and Management

ECM supports element management layer management capabilities for groups of individual elements.


ICM: Infrastructure Control and Management

ICM provides domain specific resource management layer capabilities including configuration, control and supervision of the network infrastructure (e.g., SDN Controller, WAN Controller, NFV MANO, etc.


SOF: Service Orchestration Functionality

The set of service management layer functionality supporting an agile framework for streamlining and automating the service lifecycle in a sustainable fashion for coordinated management.





Infrastructure Control and Management:

ONF SDN Controller (SDNC)

The functionality in charge of translating the network requirements from the SDN Application layer down to the SDN Datapaths and providing the SDN Applications with an abstract view of the network including statistics and events.

ETSI NFV MANO Network Functions Virtualization Orchestrator (NFVO)

The functionality that manages the Network Service (NS) lifecycle and coordinates the management of NS lifecycle, VNF lifecycle (supported by the VNFM) and Network Functions Virtualization Infrastructure (NFVI) resources (supported by the VIM) to ensure an optimized allocation of the necessary resources and connectivity.



LSO Interface Reference Points (IRP) |




LSO High Level Reference Architecture |


Andy Mayer