1. Open-O SFC.Mgr Proposal
Version 0.9
YiLiang Liu

2. Problems need to Solved
In the current OPENO architecture, SDNO and NFVO deployed their service function chain in different API & Model. In such case we can deploy service on hybrid network with both VNF and PNF.
A universal SFC Interface can reduce running cost for operator.
With a single model design system, service deployment time is halved, since there are overlap functions such as monitoring, elastic-scaling, self-healing for both VNF and PNF
Improve extensibility for supporting multiple SDNC from different vendors. Just need to have one driver adapted with controller.

3. Project Proposed Project Name: SFC Repository name: SFC
Project Description This project is using ETSI MANO architecture and service model as a reference. SFC Component will provides orchestration for Network Services Function Chain, as an integral part of Open-O.
Potential Project Participants China Mobile, Cloudbase Solutions, Huawei, Intel, (RedHat), ZTE

4. Suggested Architecture

5. Hybrid Network SFC Usecase

6. Hybrid Network SFC Usecase

7. Project Scope
SFC Release 1 Features and Functionality: LCM/Driver/TOSCA template
Life Cycle Management
Basic SFC LCM operations : SFC template design, SFC instantiate, SFC instance termination portal
Drivers
Includes : Auto deployment of SFC driver, standard REST API
SFC Model
Candidates under discussion: openstack SFC API, YANG for SFC
To be aligned with O-Common and GS-O

8. Architecture Alignment
Portal
GUI Portal …
Common Service
Orchestrator Service
O-Common
GS-O
Micro-Service Bus
Lifecycle Mgr.
Framework
Abstract NBI
Model Driven
Framework
Service Lifecycle Mgr.
Auth.
Service Decomposer
Service
Formation
Policy Driven
Framework
Log
SDN-O
NFV-O
Driver Mgr.
Controller Mgr.
Abstract NBI
Abstract NBI HA
Template Mgr.
SDN
Monitor
SDN Lifecycle Mgr.
NFV Monitor
NS Lifecycle Mgr.
Workflow
Common
Res. Mgr
VPN
VAS Mgr.
Parser
SDN Res.
Mgr.
Catalog
Traffic Optimize …
NFV Res. Mgr.
Model Designer
SFC.Mgr
Abstract SBI
Abstract SBI
Protocol Stack
SDN
Driver …
ACCESS/WAN SDN Controller Drivers
EMS/NMS Driver
NFV SDN
Controller Drivers
VNFM Drivers
VIM Drivers
This project will provide
SFC GUI Portal
SFC Abstract NBI
SFC NS Lifecycle Manager
SFC Monitor
SFC Abstract SBI
SFC Resource Manager
This project will depend on
Common Service (Micro-Service Bus, Auth., Log, etc.)
O-Common (Driver Mgr., Parser, Model Designer,etc.

9. External API in Release 1
GS-O
Model Designer
Micro-Service Bus
Import(File)
Auth.
REST
NFVO/SDNO
Log HA
Workflow
Catalog
Protocol Stack
REST API
Driver Mgr.
Parser
SFC.Mgr
REST
REST
SFCC(ODL)

10. Internal Interfaces in Release 1
SFC Mgr
Abstract NBI
SFC Monitor
SFC Lifecycle Mgr.
REST
REST
Abstract SBI
REST
REST
SFC Driver
(ZTE)
SFC Driver
(HW)
SFCC(ODL)

11. SFC LCM Overview Design Onboarding Monitoring Creation Termination
Design topology
Design SFC LCM Workflow
Design
Register SFC Driver
Register SFCC
Import images
Import template
Activate template
Onboarding
SFC Instance
Monitoring
Create SFF
Create Service Function Chain
Creation
Select NS
Terminate SFC
Termination

12. Testing and Integration Plans
SFC-O Integration Test Strategy (update)
External and internal interfaces are to be agreed first
Inner interfaces/workflows between sub-modules within SFC-O
NBI of SFC-Obetween GS-O
SBI of SFC-O for SDNCs and SDNC Drivers
Each sub-team for individual sub-modules are responsible for unit testing separately
SFC-O splits into micro-services with well defined and agreed REST APIs
A testing group will be established to coordinate integration testing of SFC-O
Integration into OPEN-O Test Strategy
Have a representative to join the testing project as a committer and make sure the testing of SFC- O integrated into OPEN-O will be delivered based on OPEN-O Test Strategy defined by the OPEN-O Test Team
Discussion on specification and testing of External interfaces between SFC-O and other components of OPEN-O will be shared/agreed/reviewed by other projects and follow the guidance of the TSC/Architecture committee.
SFC-O Integration test plan and tests cases will be based on OPEN-O use cases and shared/agreed/reviewed by other projects and follow the guidance of OPEN-O Test Team.

13. Q&A
If there is any questions, please add your comments to the discussion page of SFC project proposal in WIKI or Via