2020-10-23 Meeting notes

Use of C&PS for SON use case

• SON team joined C&PS call at 8am ET on 10/22. Discussion of how C&PS addresses needs of SON use case.

• Yang model:

  • Target: Model loaded as CSAR via SDC and available to C&PS, SDN-R etc.

  • POC: Yang model can be entered directly. Model can be handcrafted. Objective is to align with ORAN/3GPP yang model, and also to align with the ONAP target for model handling.

• API:

  • C&PS is transparent. XPath language used to traverse yang tree. Components like SDN-R, PCI-RSI MS, OOF etc can use that to directly access properties based on yang model.

  • Also discussed if we need a microservice or common code/library etc. to make it easier for other components.

This call:

• Sandeep showed the yang model for SON which was derived from ORAN/3GPP.

• Need to be able to support PATCH transactions instead of PUT for individual attributes

• Ref from Kamel: https://tools.ietf.org/html/rfc8072#section-2 

API:

• Clients can use full xpath queries.

• Burden on components like PCI-HANDLER and OOF and SDNR to all use xpath queries.

• Is there a way for one module to develop code and query and for others to reuse?

• We can work a solution for SON use case, and this can guide discusion for other use cases.

  • Need to study amount of code involved, and if it is needed to have a common translation service in MS or SDNR.

• Note: A query packaging/translation service has its own maintenance issues. It offers convenience.
  ONAP could facilitate a way of sharing, and allowing "contributed queries for sharing" without putting all the burden on C&PS team to maintain this.

From Ben: We need to update R7 in 
Guilin Release Key Updates

Chat:

From Kamel Idir to Everyone: 09:17 AM
https://tools.ietf.org/html/rfc8072#section-2
From Benjamin Cheung to Everyone: 09:37 AM
https://lf-onap.atlassian.net/wiki/display/DW/Guilin+Release+Key+Updates
From Toine SIEBELINK (Ericsson Software Technology) to Everyone: 09:44 AM
https://www.w3.org/TR/xpath-30/