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OOF (ONAP Optimization Framework):
1. High Level Component Definition and Architectural Relationships
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OOF provides several optimization functions needed by various ONAP functions and use cases.
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2. API definitions
OOF provides the following interfaces:
| Interface Name | Interface Definition | Interface Capabilities |
|---|---|---|
| OOFE-1 |
| It enables placement based on a wide variety of policy constraints including capacity, location, platform capabilities, and other service specific constraints. |
| OOFE-2 | PCI/ANR Optimization | Enables PCI/ANR optimization API for SON. |
| OOFE-3 | Schedule Optimization | a policy driven workflow schedule optimizer for change management planning. This interface schedule workflows in time to maximize parallel change management activities, while respecting dependency between the workflows. |
| OOFE-4 | Route Optimization | Provides an interface for Router Optimization. |
| OOFE-5 | OOF Model Administrator | This is for the OOF Model Administrator API. This API is a way to dynamically change the optimization models that will be used to find solutions for various optimization problems. This API will be used to Create, Update or Delete Models. |
| OOFE-6 | This interface enables slice selection recommendations. |
Note: xxxI interface is a Component internal interface. xxxxE interface is a component external interface
The current API documents can be found at:
The provided UI interfaces are OOF user guide can be found at: CLAMP OOF latest user guide
- CLAMP OOF internal APIs can be found: clamp swagger pdf OOF API specification
OOF consumes the following Interfaces:
| Interface Name | Purpose Reason For Use |
|---|---|
| SDCE-1 | For PCI/ANR optimization, OOF Retrieves the Cellsite inventory details from the configdb API, which is hosted as part of the SDNC/R component |
| AAIE-1 | OOF interfaces with AAI to retrieve the inventory |
| MCE-5 | OOF queries Multicloud for real-time available capacity information |
| MUSICI-1 | OOF interfaces with MUSIC to persist service state. |
3. Component Description:
A more detailed figure and description of the component.
ONAP Optimization Framework (OOF) is an Umbrella project, with the primary goal of addressing the optimization needs of ONAP. OOF is a framework that supports creating and running a suite of Optimizing applications including:
-Change Management Scheduling optimizer
-Homing/Placement optimizer
-PCI optimizer
-Route optimizer
OOF is targeted to be an optimization platform with the following goals:
-Declarative, policy-driven approach to solving optimization problems
-Reusable components: data and policy adapters/libraries, execution environment
-Support General-Purpose as well as Custom optimizers
-Extensible to multiple optimization problems
Internally, OOF has the following components:
- OSDF: Optimization Service Design Framework, which is a collection of APIs and libraries, along with a generic runtime optimizer
- Status: Part of ONAP since Beijing Release.
- HAS: Homing and Allocation Service, which provides a policy based constraint driven selection optimizer
- Status: Part of ONAP since Beijing Release.
- CMSO: Change Management Schedule Optimizer, providing schedule optimization
- Status: Seed code up-streamed in R3
- FGPS: Fine Grained Placement Service
- Status: Seed code up-streamed, POC in Frankfurt
4. Known system limitations
Please find the known system limitations in the following links
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5. Used Models
Clamp uses the following models:
OOF doesn't directly create models, but indirectly consumes them via AAI, Policy and Multi Cloud.
- Service and Resource Info, from: AAI
- Network Topology for CM: AAI
- HPA Flavors/Capabilities/CapacityInfo, from : AAI
- Policy Models (homing, PCI) from: Policy
- Infrastructure Metrics Info (capacity), from: MultiCloud
- Cloud agnostic Intent Info, from: MultiCloud
- AZ level capacity Info, from: MultiCloud (for F-GPS)
- PCI configuration data(not yet a part of SDC model)
- Slice/Subnet Profile and Slice/Subnet Instance models, from AAI
6. System Deployment Architecture
7. New Capabilities in this Release
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- Component Upgrades to new Policy Lifecycle API
- Support for E2E Network Slicing
- Support to perform CRUD operations on certain optimization models during runtime.