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Date

Attendees

Agenda

  • NFV VNF & PNF 
  • ConstraintDomain 
  • MEP/MIP model
  • Party

Discussion items

Time

Item

Who

Notes

IM-DAdminKam / Nigel

Liaison

  • Hing-Kam Lam Kam to ask Timon whether ONF has received the BBF December liaison announcing its adoption of open structure and now BBF is an Open Source organization.
VNF 

VNF modeling

  • Background:
    • In a TAPI calls in December 2019, it was suggested that a VNF should be represented by a PC.
  • Malcolm has analyzed the options for representing a network function that is independent of the implementation (in a VNF or PNF).
  • TAPI 2020.01.14 call noted the need of a VNF model in mid-year 2020.
    • This drives the need to start the VNF modeling now in the Core model.
  • In addition to the considerations in the analysis, the discussion also noted that
    • Should not have a VNF that has all three planes (data plane, management plane, and control plane)
    • What is the TAPI need in managing ETSI VNF
    • Need clarification from TAPI on its exact needs, requirements, 
      • May related to topology. Topology creation/deletion with respect to VNF (similarly w.r.t. equipment)
  • Next step
    • Need the TAPI requirements 
    • Further discussion within OIMT
    • Socialize with TAPI:
    • Consider adding an example (Ethernet Switch)
    • Consider converting into a position paper

Constraint Domain
  • ConstraintDomain (reversal of association - dependency) 
  • ConstraintDomain (CD) has incoming and outgoing constraints, thus it may create loop.
  • Problem to resolve: Avoid looping
  • Should we revert the "contraints" to "constrainted by"? 
  •  
  • In the diagram, there are two loops
    • ViewMappingFunction (VMF) - ExposureContext (EC) - ConstraintDomain (CD) - ViewMappingFunction (VMF)
    • ViewMappingFunction (VMF) - ExposureContext (EC) - ControlConstruct (CC) - ViewMappingFunction (VMF)

MEP/MIP modelandrea

PartyChris
  • The Party model will be for review next week
  • The Location model will be for review the week after.

Action items

  •