Data Addressability become the key to capitalize on the benefits of virtualization. concepts and features of subscriber data management (SDM) used in core networks.
Transition to an NFV architecture also brings opportunities to rethink the role of SDM within customer network environments.
When using NFV, many virtual network functions (VNFs) can be scaled within the network. Orchestration and service chaining provides necessary coherence between VNFs to maintain smooth service delivery. However, when instances of the VNFs are scaled, the generated customer and application data is saved.
For example, IMS applications require access to customer features, such as call forwarding preferences, call routing rules, and some transaction history. When an IMS function scales up and defers execution to a new instance, the attached data moves along with it. When an instance scales down, the same data moves into a new instance. Multiplied …