A software-defined network can be defined as a network with an API that allows applications to understand and react to the state of the network in near real time. A vendor is building an SDN solution that exposes an API to the RIB and potentially the forwarding engine directly. The solution provides off-box processes with the capability to interact with the routing table in the same way as a distributed routing process. Which SDN framework model does the solution use?

Question

Accepted Answer

B. augmented The augmented model exposes northbound APIs to the Routing Information Base (RIB) and potentially the forwarding engine, allowing external applications and off-box processes to read and manipulate routing state in the same manner as a native distributed routing process. This model does not replace the existing distributed control plane but augments it with programmatic access, making it the correct fit for a solution that lets applications interact with the routing table in near real time.

Answer

A. replace The replace model completely displaces the distributed control plane with a fully centralized SDN controller, whereas this solution retains distributed routing capabilities alongside API access.

Answer

C. hybrid The hybrid model combines centralized and distributed control in separate network segments or domains, which does not describe a solution that augments the existing RIB with an API.

Answer

D. distributed Distributed describes the traditional routing architecture without SDN programmability and is not an SDN framework model that exposes API access to the RIB or forwarding engine.

A software-defined network can be defined as a network with an API that allows applications to understand and react to the state of the network in near real time. A vendor is building an SDN…

Question

Options

How the community answered

Why each option

Topics

Community Discussion