Description: A bearer in the context of Software Defined Networks (SDN) refers to a channel or path through which data is transmitted in a network. This concept is fundamental to understanding how communications are managed and optimized in modern network environments. Bearers can be physical, such as fiber optic cables or wireless connections, or virtual, such as data tunnels established through software. The ability of a bearer to handle different types of traffic and its flexibility to adapt to various network configurations are key characteristics that make it essential in SDN architecture. In this context, bearers enable the separation of the control plane and the data plane, facilitating centralized network management and the implementation of dynamic traffic policies. This separation also allows network administrators to implement changes and optimizations without needing to modify the underlying physical infrastructure, resulting in greater agility and operational efficiency.