Page Comparison

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Network Slicing Model implemented in Rel 7 MAPPING to Allotted Resource IM Proposal

The scope of this page is to explore the use of the Allotted Resource model at Design Time and Run Time in the context of the Network Slicing.

Service IM call 2020/08/19

To evaluate and evolve the porposed Allotted Resource IM in ONAP, we have been trying to map current network slicing implementation in Rel 7. 

Latest Network Slicing Model implementation is available in https://lf-onap.atlassian.net/wiki/display/DW/Modeling+enhancements.

Following slides provide for discussion a couple of possible mapping options

AllottedResource and Network Slicing in Rel 7.pptx

(Slides have been discussed during Service IM call 2020/08/19, following actions has been identified:

1) Extend mapping proposal with Run time model (Michela, Chyi)

2) Provide a network slicing example for further clarification (Michela, Chyi)

3) Evaluate further current Allotted Resource Model when applied to Resource instead of Service (as Slicing).  It could be good have a similar mapping between Use Cases implemented in ONAP and the proposed ONAP IM (Andy)

Service IM call 2020/09/02

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Proposed IM updating with Allocated Resource 

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E2E Network Slicing Examples

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ONAP Rel Frankfurt

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ONAP Rel Guilin

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Analysis is based on  Presentationand  User Operation Guidance for E2E Network Slicing Use case, from LIN MENG,  Swaminathan S,  Chuanyu Chen shared during the latest LFNetworking virtual Event in Aprile April 2020 (https://wiki.lfnetworking.org/display/LN/2020+April+Technical+Event+Schedule)

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about ONAP Rel Frankfurt.

DESIGN TIME MODEL

NOTEs:

1) CST chain of objects and NST chain do not have any relation at DT. 

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The operator at, service instantiation time needs to provide the type of service (the service type uuids)  is expected to be associated to the CST and Service Profile service 

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4) Analyzing the node template and node types defined in the TOSCA descriptors   

• Allotted Resource 0 is of type org.openecomp.resource.vfc.AllottedResource,
  • used for substitution mapping of org.openecomp.resource.vf.Nstar
  • org.openecomp.resource.vfc.AllottedResource derived from org.openecomp.tosca.nodes.Root
• NSTAR 0 is of type resource.vf.NStar,
  • used for substitution mapping of org.openecomp.service.ServiceProfile

  • org.openecomp.resource.vf.Nstar derived from org.openecomp.resource.abstract.nodes.VF

  • service.ServiceProfile is derived from resource.abstract.nodes.services

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Additional Reference Material :

Design Service Templates

RUN TIME MODEL

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Additional Reference Material: 

Rel 6:

1) A&AI Impacts

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APPENDIX

Only relevant slides for the modeling discussion have been capture in the next pages.

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