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The specify configuration class will be consumed by specify Direct Graph in SDN-C. As we could import configuration class in SDC and import DG in SDN-C dynamically, new wan scenario could be taught to ONAP after version release.
Use Case Example
Take the ONAP R1 VoLTE use case as an example. Volte wan contains overlay vpn and underlay vpn, both of them could be described as a FC. And the relationship between overlay vpn and underlay vpn could be described by FCRoute and LinkConnection.
The class diagram of ONAP R1 VoLTE use case shown as below:
