Abstract: A method, system and computer readable media for mapping, for a network service (NS), requirements to configuration parameters and redundancy. The method includes marking Virtual Network Functions (VNFs) of a plurality of VNFs at each of a plurality of scaling levels and setting a recovery method for each VNF for each of a plurality of hosting types. The method includes finding configuration parameters, including values and options, for each marked and unmarked VNFs of each of a plurality of Network Forwarding Path (NFP) to satisfy the requirements, where each NFP corresponds to a functionality of the NS. The method includes finding a required number of standbys for each unmarked VNF of a Network Service Deployment Flavor (NsDF) of each of the plurality of hosting type. The method includes finding the hosting type having a minimum computing cost for all VNFs of the NsDF.

Abstract: There is provided a method, apparatus and non-transitory computer readable media for designing and deploying a network service (NS) meeting availability requirements. The method comprises computing availabilities and failure rates of virtual network functions (VNFs) instances available for deploying the NS. The method comprises designing the NS by defining VNFs instances constituents placement and redundancy, using the computed availabilities and failure rates of the VNFs instances. The method comprises deploying the NS.

Abstract: A method, system and computer readable media for mapping, for a network service (NS), requirements to configuration parameters and redundancy. The method includes marking Virtual Network Functions (VNFs) of a plurality of VNFs at each of a plurality of scaling levels and setting a recovery method for each VNF for each of a plurality of hosting types. The method includes finding configuration parameters, including values and options, for each marked and unmarked VNFs of each of a plurality of Network Forwarding Path (NFP) to satisfy the requirements, where each NFP corresponds to a functionality of the NS. The method includes finding a required number of standbys for each unmarked VNF of a Network Service Deployment Flavor (NsDF) of each of the plurality of hosting type. The method includes finding the hosting type having a minimum computing cost for all VNFs of the NsDF.

Abstract: A method and system for providing a NS instance satisfying a requested availability of a NSI comprises obtaining at least one VNFD for a VNF composing the NS, the VNFD being associated with at least one absolute availability value guaranteed according to at least one DF; obtaining an availability value of NFVI on which the VNF is to be deployed; determining a minimum availability value for a NS instance of the NS; selecting a VNF DF and RM for the VNF DF such that the product of the absolute availability value of the VNF DF, taking into account the selected RM, and of the availability value of the NFVI is greater than or equal to the minimum availability value for the NS instance; and instantiating the NS instance by instantiating at least one VNF instance according to the at least one selected VNF DF and corresponding RM.

Abstract: A method and system for providing a NS instance satisfying a requested availability of a NSI comprises obtaining at least one VNFD for a VNF composing the NS, the VNFD being associated with at least one absolute availability value guaranteed according to at least one DF; obtaining an availability value of NFVI on which the VNF is to be deployed; determining a minimum availability value for a NS instance of the NS; selecting a VNF DF and RM for the VNF DF such that the product of the absolute availability value of the VNF DF, taking into account the selected RM, and of the availability value of the NFVI is greater than or equal to the minimum availability value for the NS instance; and instantiating the NS instance by instantiating at least one VNF instance according to the at least one selected VNF DF and corresponding RM.