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Description:
Business Driver:
It is CMCC's strategy to realize big connection and provide a the general demand for big operators such as CMCC and Vodafone to build high-bandwidth, flat and super high-speed OTN (Optical Transport Network) facing with the transition to digital economy and information-based society. They also want to privide a high-speed, flexible and intelligent service for high-value customers. Furthermore, CMCC also plans to provide instant, , and an instant and flexible VPN service for SMB companies.
The current SOTN has some obvious disadvantages, such as:
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Considering the above aspects, we plan to make a combination of SOTN and ONAP in virtue of the strong orchestration ability of ONAP, which is called CCVPN(Cross Domain and Cross Layer VPN), to realize a unified management and scheduling of resource and services, and also to deploy services automatically. OTN super controller can be realized as a module of ONAP(SDN-C). In this way, multi-domain cooperation is achieved as well as resource and service automatically providing.
In this use case, our focus is not only restricted to resource, but also services from end to end. Scenarios includes 'SOTN only', SD-VAN and international private line. But at present, 'SOTN only' is at our 1 priority, which is called going to be executed in Phase1 in the following.
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Function specification priority in the whole plan:
- PHASE1Priority1: Combine SOTN with ONAP, to manage and orchestrate services automatically.
- PHASE2Priority2: SD-WAN controller is added in this phase to realize cross Layer VPN services.
- PHASE3Priority3: Cross-domain E2E Orchestration.
- PHASE4Priority4: Build up the international private line, to realize the connection between ONAPs.
Action Phases:
- Phase1: SOTN+SD-WAN
- Phase2: ONAPs Connection
Specific sub-use cases are:
- Service onboarding
- Service configuration
- Service termination
- Self service addaption (Bandwidth on demand to be added)
- Auto-scaling based on fault and performance (stretch goal)
- fault detection and auto-healing (stretch goal)
- data correlation and analytics (stretch goal)
Topology Diagram
Work FlowsFlows
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Phase1:
Brief description:
After the ONAP brought in, users can forward client service via a unified customer self-service portal. ONAP orchestrator will send out channel built request to SOTN Controller after checking the service request and OTN resource state. Then a private channel is built. Domain controller will finish resource configuration on the basis of ONAP request.
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