Problem Description.

There is an agreement to be able to:

1. Onboard a Network Service Descriptor as defined by ETSI-NFV.
2. To represent the Network service descriptor in the internal modelling.

The way to represent the network service descriptor is an ongoing discussion and there are two proposals.

Option A:  The network service descriptor is represented implicitily using the existing service descriptors.

Option B: The network service descriptor is represented explicity in the modelling.

Approach

Describe both options and cover the following information:

• Show how it works for a particular use cases.  the vCPE use cases is a good approach.
• Cover the following:
  • Model representation (Cover E2E service, NS, xNF): 
    • Onboard and defined model
    • Dynamic model in AAI 
  • Onboarding
  • Distribution from SDC to the rest
  • Service instantiation 

Option A: information

Option B: information

References

1.  Presentation on implicit representation of the NSD at the dublin architecture F2F: https://wiki.onap.org/download/attachments/41422290/Proposed%20ONAP%20Runtime%20Support%20for%20Network%20Service%20Onboarding%20v4.pptx?version=1&modificationDate=1540903774000&api=v2