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BUSINESS DRIVERS

This section describes Business Drivers for this Use Case.

Executive Summary - PNF software updates are routine for network upgrades to support new features, improve efficiency or increase capacity on the field, and to eliminate bugs. This use case positions ONAP as a vantage point in orchestrating and managing PNF software upgrades inline with the business and service objectives.   

Business Impact - Deployment and orchestration of new network services over both VNFs and PNFs in a model and software driven way simplifies the network management. As 5G networks will host a large number of PNFs from multiple vendors, streamlining service upgrades that involve PNF software changes through ONAP will reduce the OPEX substantially.  

Business Markets - Carriers both in the mobile and fixed-line space host PNFs at the edge of the network. New 5G deployments as well as legacy 4G systems in the mobile carrier space should be considered as target markets. 

Funding/Financial Impacts - Orchestrating PNF software updates via an ONAP deployment will enable better service planning, faster introduction of new network services over field-deployed PNFs, and reduce the operational costs.

Organization Mgmt, Sales Strategies - Harmonizing PNF and VNF software management in a model and workflow driven manner is essential in 5G systems where PNFs will continue to exist in large numbers and they are expected to have more frequent software upgrades (as they will have more capabilities that can be controlled or upgraded via software). Thus ONAP can be the "go-to" solution if this harmonization can be done successfully.

Current Status of PNF Software Upgrade

PNF in place software upgrade is supported in Casablanca and updated in Dublin

  • With the support of an EM​
  • Ansible protocol only ​
  • Plan to use LCM API with existing SO building blocks
  • Impacts on SDNC only (not E2E solution yet)

More details, 5G - PNF Software Update & 5G - PNF SW Upgrade (Casablanca carry-over items)

Related Meeting Links

Candidate Enhancements for PNF Software Upgrade

CANDIDATE ENHANCEMENTS

Descriptions

PNF software upgrade with direct Netconf/Yang interface with PNF

  • Enhancement and additions of PNF in-place software update.
  • Support direct PNF NETCONF interface with the vendor-specific YANG model.
  • Enhance SO in-place software upgrade workflow with generic SO building blocks, which can be used for workflow design in the design time.
  • Using CDS self-service API between SO and controller with the support of PNF in-place software upgrade
  • Enhance VID to demonstrate single PNF in-place software upgrade
  • Enhance SO procedure to support AAI update after the software upgrade completion.

Enable service level LCM operations

  • Updating the design time service template using vendor provided onboarding package
  • Upgrading a run time service instance based on the updated service template
  • Updating the run time catalog at software upgrade completion

Enhancement on the PNF upgrade using Ansible protocol



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