Method for Associating NS with VNF, Apparatus, and System

A communications device configured as a network manager (NM), the communications device comprising:

• a processor;
• and
• a memory coupled to the processor and configured to store instructions that, when executed by the processor, cause the NM to:
• send a first message to a network function virtualization orchestrator (NFVO), wherein the first message requests performance of a network service (NS) instantiation for an NS, wherein the first message comprises first information about the NS, and wherein the first information comprises at least one of instantiation information of the NS or an NS identifier of the NS;
• receive a second message from the NFVO, wherein the second message indicates that the NS instantiation is completed, and wherein the second message comprises the first information and virtualized network function (VNF) identifiers of VNFs that form the NS;
• and
• determine a mapping relationship between the NS and the VNFs based on the VNF identifiers and the first information.

A communications device configured as a network function virtualization orchestrator (NFVO), the communications device comprising:

• a processor;
• and
• a memory coupled to the processor and configured to store instructions that, when executed by the processor, cause the NFVO to:
• receive a first message from a network manager (NM), wherein the first message requests performance of a network service (NS) instantiation for an NS, wherein the first message comprises first information about the NS, and wherein the first information comprises at least one of instantiation information of the NS or an NS identifier of the NS;
• obtain, based on the first information, virtualized network function (VNF) identifiers of VNFs that form the NS;
• and
• send a second message to the NM,
• wherein the second message indicates that the NS instantiation is completed, wherein the second message comprises the first information and the VNF identifiers, and wherein the first information and the VNF identifiers are configured for the NM to determine a mapping relationship between the NS and the VNFs.