Which of the following statements about Nokia's Network Services Platform (NSP) Model-driven Mediation (MDM) framework is FALSE?

The Nokia NSP Model-driven Mediation (MDM) framework is a component that translates NSP's abstract service models into device-specific configurations. It is fundamentally based on YANG data models and uses the NETCONF protocol for communication, confirming statements A and B. A primary function of this mediation is to provide an abstracted view of the network element to the NSP, making statement C correct. However, the framework is not vendor-agnostic. It requires specific mediation logic (drivers/adapters) tailored to each vendor's device type and software version to handle differences in YANG model implementation and device behavior. Therefore, the claim of being "vendor agnostic" is false.

A. MDM is "Model-driven," and it uses the industry-standard YANG data modeling language for defining network device configurations and state.

B. NETCONF is the standard protocol paired with YANG for network management and is the primary protocol used by the MDM framework for device interaction.

C. The mediation layer's purpose is to translate between abstract service models and specific device models, which inherently provides an abstracted view of the underlying hardware.

1. Nokia Network Services Platform (NSP) System Architecture Guide, Release 23.5, Document ID: 3HE-18389-AAAA-TQZZA. In the "Device management" section, it describes the mediation layer's role. It states, "NSP uses model-driven mediation (MDM) to communicate with network elements that support model-driven interfaces (NETCONF/YANG)." This confirms options A and B. The same section explains that mediation adapts NSP models to device-specific models, confirming option C. It also clarifies that this requires device-specific adapters, which contradicts the idea of being vendor-agnostic (D).

2. Nokia White Paper: "A practical guide to building a carrier-grade, multi-vendor SDN WAN controller", Document ID: CID200321. This paper discusses the NSP architecture for multi-vendor environments. On page 6, it details the role of the mediation layer: "The mediation layer normalizes the device-specific data models... This requires a mediation driver for each device type and software release." This explicitly states the need for vendor- and device-specific components, proving that the framework is not vendor-agnostic.

3. IETF RFC 7950: "The YANG 1.1 Data Modeling Language". This RFC defines the YANG data modeling language. Nokia's MDM framework is built upon this standard, making statement A a correct description of its foundation.

4. IETF RFC 6241: "Network Configuration Protocol (NETCONF)". This RFC defines the NETCONF protocol. The Nokia NSP documentation confirms that MDM uses NETCONF as its primary protocol for communicating with YANG-managed devices, making statement B correct.