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Page Status:
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Copied from Guilin
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-R7 -
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Aug-24-2020
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Component Status: Pending PTL
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updates and ArchCom Review
Last Reviewed on: 0801/0419/2020 2021
Certified by: Vijay Kumar
1. High Level Component Definition and Architectural Relationships
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2. Component API definitions
DCAE Component provides the following interfaces:
| Interface Name | Interface Definition | Interface Capabilities | Protocol | Status | Consumed Models | API Spec (Swagger) |
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| DCAE-EXT1 | VES Collector | An interface to share FM/PM data for VNF FCAPS from the VNFs via the EMS Driver to VES Collector | REST | Available | VES | VES-Collector |
| DCAE-EXT2 | HV-VES Collector | Interface to support GPB over TCP for highvolume VES Events | Proto/TCP | Available | VES | HV-VES (High Volume VES) |
| DCAE-EXT3 | DataFileCollector | Supports bulk/batch datafile collection from xNF | http/sftp/ftpes | Available | 3GPP | NA |
| DCAE-EXT4 | SNMPTrap | Supports SNMP traps collection from SNMP agents deployed in the network | UDP | Available | NA | |
| DCAE-EXT5 | RESTConf | Subscribes to external controllers and retrieves data | restconf | Available | RESTConf | |
| DCAE-EXT6 | OnboardingAPI (MOD) | Used for onboarding MS component spec file and data-format into Design catalog | REST | Available (POC) | Onboarding HTTP API (MOD) | |
| DCAE-EXT7 | Deployment Handler | High-level API for deploying/undeploying composed DCAE services | REST | Available | Deployment-Handler | |
| DCAE-EXT8 | Inventory API | DCAE Inventory is a web service that provides the following:
| REST | Available | Inventory API | |
| DCAE-EXT9 | Data Extraction Service (DES) | Provides basic computation and data retrieval/access from datastorage maintained by DL handlers (Feeder) | REST | Available New(Guilin) | des-swagger.json | |
| DCAE-EXT10 | DCAE Openloop/CL Event | Open loop and Control Loop event trigger from DCAE analytics/correlation MS into DMAAP | REST | Available | CL Event Structure | |
| DCAE-EXT11 | PNF Registration Handler | PNF Registration event published through DMAAP | REST | Available | VES | PRH (PNF Registration Handler) |
| DCAE-EXT12 | ConfigBindingService (CBS) | The CBS provides API for all DCAE deployment mS to retrieve configuration from Consul. | REST | Available | CBS API | |
DCAE Component consumes the following Interfaces:
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| Interface Name | Interface Definition | Interface Capabilities | Protocol | Status | Consumed Models | API Spec (Swagger) |
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| POE-1 | Policy update notification via DMAAP | Recieve updates to DCAE MS configuration policies via DMAAP (consumed by DCAE Policy Handler) | REST | Available | tosca.policies.root | |
| POE-5 | PDP - Policy Handler | Fetched policies for DCAE MS from the Policy Framework via PDP query | REST | Available | Defined by policy | POE-5 (Policy Decision API) |
| AAIE-1 | Topology Enrichment | Enrichment query by Correlation/analytics MS | REST | Available | AAI REST API Documentation on readthedocs.io | |
| Acumos-E5 Subscription | Acumos - AA (MOD) | Acumos Adapter - Retrieves models from Acumos using E5 interface and onboard them into DCAE (MOD) using OnboardingAPI and make it available in Catalog | REST | Available (POC) | ||
| SDC-6 | Artifact Distribution | DCAE Platform (SCH) uses notification to retrieve MS Blueprint DCAE-VESOpenAPI manager uses notification to retrieve VES schema uploaded and perform validation | Available | https://docs.onap.org/projects/onap-sdc/en/latest/offeredapis.html |
3. Component Description:
DCAE R8 M2 Release Planning#Architecture
https://docs.onap.org/projects/onap-dcaegen2/en/latest/sections/architecture.html
4. Known system limitations
Architectural Technical Debt
Hardening MOD components (delivered as POC) into mainstream component with redesigned catalog /UI and Policy/CLAMP integrationand Helm charts contributions
Runtime: None
In Honolulu release, DCAE Platform includes Cloudify which is used for (Cloudify and handlers) will be used primarily for dynamic Service Component orchestration. This will continue on Python 2.x as Python 3.x support for Cloudify is not available ( expected AUG'2020; will be evaluated once available and worked as stretch goal for Guilin)All static components deployment will be migrated to Helm. Depending on progress of REQ-439 platform function support via helm, dynamic deployment migration will be dealt in next release.
5. System Deployment Architecture
https://docs.onap.org/projects/onap-dcaegen2/en/latest/sections/release-notes.html
6. New Release Capabilities
DCAE R7 - M3 R8 M2 Architecture Review
DCAE R7 M1 R8 M2 Release Planning
7. References
- DCAE Architecture
- DCAE R7 M1 R8 M2 Release Planning#Architecture (Guilin Honolulu view)
- RTD - https://docs.onap.org/projects/onap-dcaegen2/en/latest/sections/architecture.html
- DCAE Onboarding -
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