METHOD FOR MITIGATING THE IMPACT OF NETWORK FUNCTION VIRTUALIZATION INFRASTRUCTURE (NFVI) SOFTWARE MODIFICATIONS ON VIRTUALIZED NETWORK FUNCTIONS (VNFS)

摘要

The disclosure relates to a method, executed by a NFVI Software Modification Manager, for coordination of Network Function Virtualization Infrastructure (NFVI) software modification. The method comprises identifying a Virtualized Resource (VR) impacted by the NFVI software modification; notifying a VNF-level Manager responsible for the coordination for the VR that the NFVI software modification is about to start; starting a timer with a lead time; upon expiry of the lead time, proceeding with the NFVI software modification; and notifying the VNF-level Manager that the NFVI software modification is completed. The disclosure also relates to a corresponding method executed by a Virtualized Network Function (VNF)-level Manager, as well as network nodes implementing these methods.