5G - PNF Plug and Play (Casablanca carry-over items)
- Shekar Sundaramurthy
- Benjamin Cheung
- Manoop Talasila
The following table has the 5G PNF / Plug and Play items queued up as proposals for DUBLIN (R4) Release.
New requirements will be identified in the PNF Plug and Play Wiki Page which can be found at: 5G - PNF Plug and Play
PNF PLUG AND PLAY ENHANCEMENTS SUMMARY BY PROJECT:
PROJECT | IMPACT | PTL |
SO | SO to Controller to PNF communication | |
AAF | Security Enhancements | |
SDN-C/R | Controller to PNF communication (Ansible, NetConf) | |
PRH | PRH Enhancements & Integration | |
A&AI | A&AI enhancements, PNF-ID. ESR support. | |
| VID | VID enhancements & Carry over from R3 | |
| PORTAL | Impact on Functional Menus | Manoop Talasila |
| SDC | PNF Package management | Ofir Sonsino |
SO IMPACTS
PnP DUBLIN WORK ITEM | DESCRIPTION |
SO1: SO support of A&AI creation | [SO] A&AI UI can create an inactive PNF (inactive) A&AI entry. In Step #19A instead of EXITING, SO would go into WAIT STATE pending rehydration of RLF w/ pnfReady DEVELOPMENT STATUS: |
| SO2: Service & NF Instance Association | Associating a xNF to a Service. Seen in the VID UI, after instantiation waiting for registration see only a Service instance, and beyond that a PNF resource instance associated with it. DEVELOPMENT STATUS: |
SO3: SO support for already existing PNF A&AI entries | [SO] Support of SO for an already existing PNF (active) A&AI Entry (use case with a deleted & recreated service or instantiating 2nd service using the same PNF) DEVELOPMENT STATUS: In ONAP/Casablanca this was updated, and irrespective of AAI entry existence for a PNF instance, the workflow execution always waits to receive a PNF registration event. |
| FUTURE (El Alto) | |
SO-future: Controller Association [FUTURE MOVED TO EL ALTO] | [SDC/SO] The PNF controller caused quite a stir in Casablanca, the tension between Design/Platform Model vs Run-Time/Deployment Model. As a result the SO controller design was sub-optimal and should be addressed in Dublin. |
| SO4: SO to support updated A&AI PNF schema | [SO] Support of SO for updated AAI PNF instance model. Added March 13th 2019 → AAI team got a recommendation from architecutre committee to defer this item to ONAP/El Alto release. ASSOCIATED DEVELOPMENT: See task A&AI1 and PRH1. JIRA: (Depends on the A&AI work: AAI-2096 - Getting issue details... STATUS ). SO-1273 - Getting issue details... STATUS SO-1277 - Getting issue details... STATUS . Epic Created: SO Dublin Page: Service Orchestrator Dublin Release |
AAF SECURITY IMPACTS
PnP DUBLIN WORK ITEM | DESCRIPTION |
AAF1: Security Enhancement | [AAF] Security enhancements slated for Dublin will need to be working for PnP Use Case. Discussing with DCAE about supporting TLS authentication just with Certificate without Username & Password. If the NF already uses the UN&P for the HTTP connection (that should still work). Certificate use should be working in Dublin to setup the HTTPS connection. PROPOSAL: Thus, both Certificate & Username & Password will be supported. (This is suggested for backward compatibility). i.e. there are already existing deployment. PROPOSAL: It is recommended to use the Certificate. Certificates as part of the authorization? Subject of the certificate is something that can be used as authorization, the proposal to DCAE is that there is a list of authorized users/subjects. Initially it could be manually configured, but the objective is that this would come from AAF. Start with Certificates local check: subjects against a list (w/ wildcards). Agree w/ appropriate interface w/ AAF then integrate w/ AAF. If identity not found use basic authentication a second check w/ username & password. otherwise access is rejected (HTTP return code). ASSOCIATED DEVELOPMENT: VNFRQTS - Certificate Authentication for HTTPS/TLS - VNFRQTS-524 - Getting issue details... STATUS DCAE Development for Authentication for HTTPS/TLS - |
SDN-C/R (Controller) IMPACTS
The Controller to PNF service configuration happens in Steps 36 & 37 in the PNF Plug and Play flow (you can read more at the PNF PnP Wiki).
PnP DUBLIN WORK ITEM | DESCRIPTION |
CTL1: Controller PNF Interaction | [CONTROLLER] Controller definition (SDN-C) came so late in Casablanca, we had defined some additional optional parameter for the step37 Service Configuration but likely more evolution needs to be done. SDN-C was not the theoretical proper controller and people objected as this is conceptually the L0-L3 controller. [STEP 35-37] - The SO to SDN-C and Controller to PNF exchange (Ansible or NetConf) was a carry-over item from R3. This requires that an API between SO to SDN-C is in place to support this. It requires that SDN-C support the appropriate Ansible Playbook and Directed Graph. Generic API. CDS has its own API to SO. The work being done with the CDS work is re-used for PnP U/C, so no new development needs to be done. ASSOCIATED DEVELOPMENT: (Jira) Controller Design Studio (Design Time) - to customize configuration. This might be used to set the values of parameters that might be send down to a PNF. NetConf - see the NetConf 5G U/C Wiki: 5G - Configuration with NETCONF |
PRH IMPACTS
PnP DUBLIN WORK ITEM | DESCRIPTION | ||||||||
| PRH2: Integration | [PRH] There might be more integration or development for the PRH in Dublin. | ||||||||
| PRH3: PNF Registration Update the A&AI Entry | When the PNF registers, PRH should update the A&AI entry with the information in the VES event. PRH shall update A&AI with all fields from pnfRegistration VES event into all corresponding fields of A&AI entry. See the 5G - PNF Plug and Play wiki DEVELOPMENT STATUS: DCAEGEN2-691 - Getting issue details... STATUS | ||||||||
| PRH4: PRH Re-Registration Support | PRH support for the Re-Registration Use Case in PNF PnP (for BBS Nomadic ONT PNF Re-registration Use Case). Which fields to compare in mapping field to determine a reregistration PNF. DEVELOPMENT STATUS: DCAEGEN2-1059 - Getting issue details... STATUS API CHANGE: New field for event publishing on pnfReady topic & pnfUpdate topic enhanced with additional fields as received in pnfRegistration event (a 1-to-1 copy). Was reviewed & agreed with BBS U/C team and change made in code (continuous integration system). Mar 14, 2019 | ||||||||
| DEFERED TO EL ALTO | |||||||||
| PRH1: A&AI New PNF Schema Adaptation | New A&AI schema adaptations: 5G - PNF Plug and Play (Casablanca carry-over items) found a discrepancy between PNFs and VNFs; VNFs are identified via VNF-ID (UUID), and PNFs - via PNF-name. PNF-id = UUID; PNF-name = Correlation ID. PRH use search API to find PNF instance based on PNF-name then get the PNF-id. pnfRegistration VES Event to get the Key to search A&AI. use "sourcename" (part of VES Common header). Take value of sourcename search A&AI to find a PNF entry. Added March 13th 2019 → AAI team got a recommendation from architecutre committee to defer this item to ONAP/El Alto release. ASSOCIATED DEVELOPMENT: See task A&AI1 and SO4. | ||||||||
| PRH(discuss): Step 37a PNF "Activated" message to ONAP | State Change VES Event (type = State Change) Old state & New State. CPE Authentication Notification BBS U/C is using this flow to "update" ONAP letting ONAP know that the PNF has been successfully been activated. From VES Event Listener Document:
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A&AI IMPACTS
| DUBLIN ITEM | DESCRIPTION |
| A&AI4: SO support of A&AI creation | [SO] A&AI UI can create an inactive PNF (inactive) A&AI entry. In Step #19A instead of EXITING, SO would go into WAIT STATE pending rehydration of RLF w/ pnfReady DEVELOPMENT STATUS: (Completed in ONAP/Casablanca - SO-797 - Getting issue details... STATUS ) |
| A&AI5: SO support for already existing PNF A&AI entry | [SO] Support of SO for an already existing PNF (active) A&AI Entry (use case with a deleted & recreated service or instantiating 2nd service using the same PNF) In Step #19B SO would exit and service creation would continue |
| MOVED TO R5 EL ALTO | |
| A&AI2: External Manager (EMS/NMS) [ESR] | [A&AI] IP address or association with the External Manager. Is the ESR concept sufficient? https://onap.readthedocs.io/en/beijing/submodules/aai/esr-server.git/docs/ During PnP, the IP address of the External Manager would saved/stored or set by user or by the PNF. Where would that be stored? would it be in A&AI. Information about the External Manager is discovered & stored. Note: The External Manager info is optional LOW PRIORITY |
| A&AI3: Cloud Home Server (A&AI) | [A&AI] Tracking the Cloud Home Server (CLLI, Cloud ID); is the association with the COMPLEX Object sufficient? How-To: Register a VIM/Cloud Instance to ONAP LOW PRIORITY |
[A&AI] Using the pnf-id (instead of pnf-name) as the index for PNF into A&AI. (discussion started in R3, socialized, Contact: 5G - PNF Plug and Play (Casablanca carry-over items) ). The URI will change, as a query parameter. API change in A&AI. No external API impacts. ACTIONS: Inform Clients of break in change & migration. ASSOCIATED DEVELOPMENT: AAI-2096 - Getting issue details... STATUS (Epic) AAI-2148 - Getting issue details... STATUS (Story) | |
VID ENHANCEMENTS
PnP DUBLIN WORK ITEM | DESCRIPTION |
VID1: VID Enhancements (Test only) | Confirm the PNF PnP still works with ONAP Dublin UI changes. There was VID GUI changes that happened in R4 Dublin to for new presentation layer with redesign of how VID presentation layer, new layout & buttons. VID displays pages only with certain conditions e.g. only shows PNF if it finds a PNF resource in the service model. HIGH PRIORITY. TESTING STATUS: |
| VID3: VID Enhancements | VID A&AI INSTANCE CREATION – (optional) (slide 20/Step 4) – VID supporting Resource Declaration a PNF A&AI Instance creation. Similar flow in eCOMP. LOW PRIORITY. |
| VID4: Error Cases | ACTION: Error cases (check if SDC model parameters != A&AI PNF entry). LOW PRIORITY. |
| DEFERRED TO R5 EL ALTO | |
| VID2: VID PNF Mgmt. Enhancements | VID A&AI Schema Changes PNF-id vs PNF-name. VID will have to be updated to support the new A&AI Schema change PNF model (PNF-id vs PNF-name). HIGH PRIORITY. PROPOSAL: ASSOCIATED DEVELOPMENT: VID-413 - Getting issue details... STATUS , VID-412 - Getting issue details... STATUS |
PORTAL IMPACTS
| DUBLIN ITEM | DESCRIPTION |
| Impact on Functional Menus | PNF PnP will have a Portal Interface update in R4. Functional menu accessible to any ONAP users from portal. The Portal project provides a seamless user experience when multiple back-end components involved e.g. SDC, VID, A&AI etc When user goes from one component to another e.g. modeling, pnf instance declaration, activation. These provided as functional menus in PORTAL. If a new user doesn't know what the next step is to perform, the PORTAL can recommend the next step via notifications or alerts. DEVELOPMENT STATUS: PORTAL-490 - Getting issue details... STATUS ASSOCIATED DEVELOPMENT: More details are here - 5G Usecase Impacts on Portal platform |