1. ONAP and MEF LSO External API Framework Functional Reference Architecture
12 July 2017
Andy Mayer, Ph.D.
© 2016 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.
AT&T Proprietary (Internal Use Only). Not for use or disclosure outside the AT&T companies except under written agreement.

2. About MEF 55 (What is LSO?)
LSO provides for the orchestrated management and control of Third Network Connectivity Services across all internal and external network domains from one or more network operators
LSO Reference Architecture characterizes the management and control domains and entities that enable the cooperative LSO capabilities
LSO overcomes existing complexity by defining product, service, and resource abstractions that hide the complexity of underlying technologies and network layers from the applications and users of the services
Within each provider domain, the infrastructure may be implemented with WAN technologies, as well as NFV and/or SDN
Not only dramatically decreases the time to establish and modify the characteristics of the Connectivity Service, but also assure the overall service quality and security for these services

3. LSO Engineering Methodology
MEF 6.2, 33, 51, 10.3, 26.2, etc.
MEF Service Definitions
(including virtualization)
Common Information Models
LSO Reference
Architecture & Framework
Business Process Flows
Interface Profiles
API Specifications
& Data Models
Reference
Implementations
API Implementations
Certifications
MEF 7.3, Common Model, Resource Model,
Cloud Services
MEF 50
Profiles for Presto, Lagato, etc.
SCA, YANG, etc.
LSO Hackathon, ODL project, OPNFV
MEF LSO Reference Architecture
& UNITE
SCA API Test Suite
SOC: Product Catalog, Ordering, Performance Reporting, Serviceability

4. Business Applications Business Applications
REFERENCE ARCHITECTURE
Customer Domain
SP Domain
Partner Domain
Cantata
(CUS:BUS)
Business Applications
Business Applications
Sonata
(BUS:BUS)
Customer
Application Coordinator
LEGATO
(BUS:SOF)
LEGATO
(BUS:SOF)
Service Orchestration Functionality
Interlude (SOF:SOF)
Service Orchestration Functionality
Allegro
(CUS:SOF)
Presto
(SOF:ICM)
Presto
(SOF:ICM)
Infrastructure Control and Management
Infrastructure Control and Management
ADAGIO (ICM:ECM)
ADAGIO (ICM:ECM)
Element Control and Management
Element Control and Management
Network Infrastructure

5. LSO Management View Abstractions
Service View
Element & Equipment
Element Control & Management
Service Orchestration & Infrastructure Management
(Subnetwork)
LSO RA
Context
Information Class Examples per Management Abstraction View
Network Element
Card
Product
Offering
Logical Termination Point
Forwarding Construct
Port
Service Orchestration
(Provider domains & multi-domain)
Business Apps
Product View
Catalog
Customer
Link
Network & Topology
Service
Server
Facility
Fabric
Management
Abstractions
Service Spec
Forwarding Domain
VNF
Resource View
Spec
Instance
Service Component
Service Access Point
Route
Cross Connect
VNE
Interface

6. LSO RA Phase 2 Deliverables
Description
Deliverable 1
Operational Threads and Interface Reference Points
Deliverable 2
Architectural Relationship with ONF SDN & ETSI NFV
Deliverable 3
SOF Sub-Architecture and Functional Requirements
Deliverable 4
LSO Mappings (MEF 50.1, TM Forum APIs)
Deliverable 5
Definition of the role of OASIS TOSCA in LSO
Deliverable 6
Analysis of information model layering for orchestration
Deliverable 7
LSO Security Framework
Deliverable 8
Policy-Driven Orchestration

7. SOF Interface Reference Points
Service feasibility;
Service configuration & activation;
Usage events & metrics;
Service performance & quality;
Service policy
LEGATO
Dynamic service control;
Service state info;
Service performance & quality;
Service related alerts;
Service Orchestration Functionality
Dynamic service control;
Service parameter config;
Service state info;
Service performance info;
Service problem alerts
ALLEGRO
INTERLUDE
PRESTO
Connectivity and network function feasibility;
Configuration, activation, and management of connectivity and logical network functions;
Topology and routing;
Performance and Fault;
Connectivity policy

8. Business Applications Business Applications
ONAP / LSO Relationship
Customer Domain
SP Domain
Partner Domain
Cantata
(CUS:BUS)
Business Applications
Business Applications
Sonata
(BUS:BUS)
Customer
Application Coordinator
LEGATO
(BUS:SOF)
LEGATO
(BUS:SOF)
ONAP
ONAP
Service Orchestration Functionality
Interlude (SOF:SOF)
Service Orchestration Functionality
Allegro
(CUS:SOF)
Presto
(SOF:ICM)
Presto
(SOF:ICM)
Infrastructure Control and Management
Infrastructure Control and Management
ADAGIO (ICM:ECM)
ADAGIO (ICM:ECM)
Element Control and Management
Element Control and Management
Network Infrastructure

9. MEF Interface Reference Points & ONAP (need updated arch diagram)
Interlude (SOF:SOF)
Allegro
(CUS:SOF)
LEGATO
(BUS:SOF)
Presto
(SOF:ICM)

10. LSO RA Phase 2 Operational Threads
Detailed Operational Threads / User Stories for:
Partners on-boarding (to be defined)
Product Ordering and Service Activation Orchestration
Controlling a Service
Customer Viewing Service Performance and Fault Reports and Metrics
Placing and Tracking Trouble Reports
Assessing Service Quality Based on SLS
Collection and Reporting of Billing and Usage
Securing Management and Control Mechanisms (to be defined)
Providing Connectivity Services for Cloud (to be defined)

11. LSO RA Phase 2 Operational Threads

12. Describe Target Use Cases & Interactions (Example)
Serviceability and Ordering

13. Next Steps
Describe each of the MEF LSO Interface Reference Points (IRPs) within the ONAP context.
For each IRP provide the functional description of target ONAP capabilities for interactions
Describe deployment scenarios
Use ONAP Use Cases as the basis for identifying key external interactions & apply MEF LSO Operational Threads

14. BACKUP MATERIAL
© 2016 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property.
AT&T Proprietary (Internal Use Only). Not for use or disclosure outside the AT&T companies except under written agreement.