Disaggregation in controller-based networking means the separation or division of control-plane and data-plane functions in a network architecture. In traditional networking, these functions are often tightly integrated into single devices like routers or switches. However, with disaggregation, the control-plane functions, responsible for making routing decisions and keeping network information, are centralized in a controller, while the data-plane functions, which handle actual data forwarding, are distributed across the network devices.

Taken literally, “network disaggregation” means separating the network into its component parts. What we’re talking about here is the ability to source switching hardware and network operating systems separately. This is like buying a server from almost any manufacturer and then loading an OS of your choice. Combining SDN and Disaggregation: https://packetpushers.net/simplified-approach-sdn-network-disaggregation/

Selected Answer: A A, it’s the way; in the SDN architecture, the control plane and data plane are decoupled.

Does anyone know what disaggregation means? It's not in the OCCG.

Network Function Disaggregation (NFD) describes the evolution of switching and routing appliances from proprietary, closed hardware and software sourced from a single vendor, toward totally decoupled, open components that are combined to form a complete switching and routing device. this is what I found but it has nothing to do with the answers.

Selected Answer: A The answer to the question "What is the role of disaggregation in controller-based networking?" is: A. It separates the control-plane and data-plane functions. This answer is mentioned in multiple search results, including [1], [2], [3], and [4]. Answer B is also mentioned in some search results as a description of controller-based networking, but it is not the specific role of disaggregation within that architecture. Answers C and D are not mentioned in any relevant search results for this question.

A. The page I used is here below. https://drivenets.com/blog/network-disaggregation-101/#cmtoc_anchor_id_0