The LSO Legato SDK is the complete set of deliverables developed by the MEF membership in order to

1. Enable market adoption of LSO Legato APIs in the current release of the LSO API Framework.
2. Support of development of additional features for the upcoming release of the LSO Legato SDK.

The latest release of LSO Legato SDK is in the LSO API Release 'Celine' and is available on GitHub (see Latest Release section for details).

Any MEF member can participate in the development of each new release of the LSO Legato SDK:

• Contact the LSO Developer Community Manager (Michał Łączyński) either via GitHub or by email to let him know of your interest and to ask questions

MEF-LSO-Legato-SDK Celine Release

Download Link

Download the entire repository by clicking here

Overview

This repository contains the Celine release of the Legato SDK. The SDK includes APIs for Service Catalog, Service Order, Service Inventory and Service Notification functions of the Service Orchestration Functionality (SOF) at the LSO Legato Interface Reference Point (IRP) as defined in the MEF LSO Reference Architecture.

This version updates the payload schemas for:

• IP/IP-VPN (based on MEF 112)

Also included are draft, in-progress versions of the API Developer Guides for each of the service types listed above.

Scope

It includes API definitions for the following functional areas:

• Service Catalog - This includes support for
  • Service Specification - Retrieve operations only
  • Not in scope
    • Service Specifications - Create, Amend/Modify, Delete operations
    • Service Catalog, Service Category, Service Candidate, Job/Task
• Service Ordering - This includes support for
  • Service Order/OrderItem - Create, Retrieve operations only
  • Not in scope
    • Service Order/OrderItem - Amend/Modify/Cancel, Delete operations
• Service Inventory - This includes support for
  • Service - Retrieve operations only
  • Not in scope
    • Service - Create, Amend/Modify, Delete operations
• Service Notification - This includes support for
  • Hub - Create, Delete, Retrieve operations
  • Service Specification - Create, Delete, StateChange event notifications
  • Service Order/OrderItem - Create, StateChange event notifications
  • Service events - Create, Delete, StateChange event notifications
  • Not in scope
    • Hub - Modify operations
    • Retrieve Notification records history/log
    • AttributeValueChange event notifications

In addition to the Service Provisioning APIs, the SDK includes the following MEF Service Specification schemas:

• SD-WAN Services
• Carrier Ethernet Services
• L1 Connectivity Services
• IP/IP-VPN Services

The MEF LSO Legato SDK is released under the Apache 2.0 license.

More information about the LSO Legato API reference point and it's roadmap can be found here:

https://wiki.mef.net/display/CESG/LSO+Legato

Maturity Level

The API files contained in this SDK are evolving and subject to change. They are based on documents that are either work in progress or draft standards that have not yet completed the review cycles and approvals necessary to achieve the status as a MEF standard. MEF is making these publicly available at this time to invite wider industry review.

There is currently LSO Legato Service Provisioning Project open that aims to deliver:

• LSO Legato Service Provisioning API (MEF W99)
  • OAS3 API/Schema definitions as YAML files (DRAFT, part of this SDK release)
  • API Developer Guide as GFM file (DRAFT, part of this SDK release)
• LSO Legato Service Provisioning Specification - SD-WAN (MEF W100)
  • JSON Schema definitions as YAML files (DRAFT, part of this SDK release)
  • Schema Guide as GFM file (DRAFT, part of this SDK release)
• LSO Legato Service Provisioning Specification - Carrier Ethernet (MEF W101)
  • JSON Schema definitions as YAML files (DRAFT, part of this SDK release)
  • Schema Guide as GFM file (DRAFT, part of this SDK release)
• LSO Legato Service Provisioning Specification - L1 (MEF W103)
  • JSON Schema definitions as YAML files (DRAFT, part of this SDK release)
  • Schema Guide as GFM file (DRAFT, part of this SDK release)

Contents

This SDK contains the following items:

• COPYRIGHT - Copyright 2020 MEF Forum
• LICENSE - Contains a copy of the Apache 2.0 license
• README - This file
• serviceApi - Definitions of the API are found in this directory
  • catalog - Contains the API definitions for querying and retrieving Service-Specification instances from the service catalog system in the SOF.
  • inventory - Contains the API definitions for querying and retrieving Service instances from the service inventory system in the SOF.
  • order - Contains the API definitions for posting Service-Order request to the service order system in the SOF. Each Service-Order contains one or more Service-Order-Items, each of which specifies the Service instance (and its characteristics) to be added/updated/deleted.
  • common - Contains the API definitions for registering Notification-Listeners to be called-back when the specified condition occurs. Also common API resources and error definition can be found here.
• serviceSchema - Contains JSON schema (draft 7) files for
  • SD-WAN Services
  • Carrier Ethernet Services
  • L1 Connectivity Services.
  • IP/IP-VPN Services
• documentation - documentation including API/Schema developer guides and openapi-tools generated API descriptions in markdown format
• generated\staticBinding - contains automatically generated (with help of the open source Sonata Blending Tool), not normative static bindings of envelope APIs with Service payloads.

Issues, questions, and Feedback

Issues should be reported with the use of GitHub issues. Questions and feedback should be asked either at Legato SDK Community or directly to community_manager@mef.net.

NOTE: All artifacts included in this repository have line numbers. When referring to specific content in any of these artifacts, please quote the line numbers to which you are referring.

Reference Implementations

A reference implementation of the MEF Service Instantiation API may be available from the ONAP EXTAPI project.

https://wiki.onap.org/display/DW/External+API+Framework+Project

LSO Legato SDK Release Celine

Version: celine

Date:  January 14th 2022

Release Celine Deliverables:

LSO Legato SDK Release Billie

Version: billie-final

Date:  16th June 2021

Release Billie Deliverables:

LSO Legato SDK Aretha

GitHub tag: aretha

Date: 22^nd December 2020

Release Aretha Deliverables:

Theme: Multi-technology service provisioning

Source: LSO Legato Graphics