2021-04-14 Meeting notes - Joint OAM / NONRTRIC / SIM SCRUM meeting

2021-04-14 Meeting notes - Joint OAM / NONRTRIC / SIM SCRUM meeting

Time & Location:

Meeting Detail: Times & Joining Info

Wednesdays at 16:00 UTC in Summer (DST), 17:00 UTC in Winter !

NOTE: During the "Daylight Savings Time" changeover periods (US vs Europe vs Asia) the time of the meetings may fluctuate. See the Calendar: (https://lists.o-ran-sc.org/g/main/calendar

  • Summer Daylight Savings time eventually stabilizes to: 9am PDT | 12pm EDT | 16:00 UTC | 17:00 BST | 18:00 CEST | 19:00 EEST | 21:30 IST | 00:00 CST (Thurs) | 01:00 JST (Thurs)

  • Winter (non-DST) time eventually stabilizes to: 9am PST | 12pm EST | 17:00 UTC | 17:00 GMT | 18:00 CET | 19:00 EET | 22:30 IST | 01:00 CST (Thurs) | 02:00 JST (Thurs)

  • (During Winter→Summer DST changeover we follow US time. Summer→Winter we follow Europe time)

Zoom Bridge :  https://us02web.zoom.us/j/89069708424?pwd=aGJOZm54eTUxd0FXR0VCU1N0ejBrUT09

Joining the meeting:

  • Meeting ID: 890 6970 8424

  • Dial in: (Local numbers)
    +1 646 558 8656 US (New York)
    +49 30 5679 5800 Germany
    +49 69 3807 9883 Germany
    +353 1 240 8941 Ireland
    +46 8 4468 2488 Sweden
    +46 8 5016 3827 Sweden
    +358 3 4109 2129 Finland
    +358 9 7252 2471 Finland

Date

Apr 14, 2021

Attendees

  • @John Keeney (Ericsson EST)

  • @Martin Skorupski

  • @Alex Stancu

  • @Kenny Paul (Deactivated)

  • @Former user (Deleted)

  • @Andrew Mayer

  • Sorry - didn't manage to get a full attendees list for this meeting  ... please add yourself

See also / co-located (ONAP/O-RAN-SC/SMO - Meeting)

Contents:

 

Recording

Notes:

Housekeeping:

OSC Project roundup:

NONRTRIC (@John Keeney (Ericsson EST))

  • Prototyping building blocks that might be useful in the future for rApps and R1

    • Many rApps will likely contain helm charts so working on a function to do basic lifecycle management of helm charts

    • A major part of R1 platform will center on service & API exposure. Experimenting with Kong.

  • Working hard to increase test coverage & tidy up NONRTRIC control panel.

  • Working on updating Gateway function for the Control to use.

  • In ONAP: A1 Policy Management needs to maintain state.

    • Implemented as persistent state storage to local storage, which can then be realaised as a K8s persistent volume for state to store/share state across k8s pods and pod restarts

    • May need to use something more complicated later, e.g. DB-backed.

    • Working with OSC IT/DEP and ONAP OOM teams to add these changes to deployment scripts

SIM (@Alex Stancu)

  • Prepared 2 docker images

    • O-RU simulator with Nov train yang models

    • O-DU simulator with hello-world usecase yang model

OAM (@Martin Skorupski)

  • VES std-defined event functionality (See last week) to allow other SDOs to inject their schemas into VES body

    • Unlikely to be demonstrated in D Release

  • Updated Heloo-World usecase YANG model for O-DU. Still under discussion at RSAC/TOC level - pending reviews. Ref:

  • O-DU team confirms ability to send PNF registration VES message and see  Netconf session established.

  • Request to come up a generic OAM adapter (temporary solution/workaround) to translate to O-RAN conforming interface - External to the network function. 

    • Still under evaluation/discussion. More to follow later.

ONAP-OSC & QA:

  • Discussion about LFN 5G Super Blueprint

  • Topology Modelling work ongoing in ONAP @Martin Skorupski @Andrew Mayer

    • Looking at use cases

    • @John Keeney (Ericsson EST) Is there alignment between O-RAN Alliance & ONAP (& OSC) on this? 

      • @Andrew Mayer That's the idea, but no concrete plan yet. Still working on it

      • @Martin Skorupski Need multi-domain topology model - especially for FM for example - so perhaps ONAP is the best home since it's more over arching?

      • Must be able to deal with & provide mapping between models & domains. Lots of work!

      • Aim for Meta-model first & then support domain models & mappings etc.

 

  • Alarm Dictionary work ongoing in ONAP @Martin Skorupski

  • O-DU O-RU FH Connection supervision hello-world use case ...

    • Will use normal VES collector 1.9.0 from ONAP

    • Plan to use DMaaP to pass events to NonRTRIC DMaaP 1.1.8

      • Will see a an alarm DMaaP message with FH connection is brought down

    • Netconf client will be SDNR/CCSDK.SDNC 2.3.1

      • Will expose RESTCONF NBI to configure O-DU to bring FH conenction back up  (Adminstrative State → Unlocked) .

    • Still examining different options to implement NONRTRIC link monitor function / app. Still not completely clear yet.

    • Need to work a little on helm charts for OAM/NONRTRIC/SMO environment for the use case.

      • Multiple charts is probably fine - so long as all in same cluster

    • Will use AdministrativeState to bring FH connection Up/Down ... probably not the exact purpose for the AdministrativeState value ... but OK for this hello-world use case.

      • e.g. O-DU needs to "shut down" the FH conenction when "LOCKED" ... but this might not be "normal" real-world behavior

      • O-DU should kill the conenction

      • O-RU should send alarm

  • @Former user (Deleted) Will speak next week about CPS