In software defined architectures, which plane is distributed and responsible for traffic forwarding?
In software-defined architectures, the distributed plane responsible for traffic forwarding is the data plane.
The data plane, also known as the forwarding plane or the user plane, is responsible for moving data packets from one point to another based on the forwarding decisions made by the control plane. It is the plane where data traffic is processed and forwarded. In software-defined architectures, the data plane is distributed and implemented in network devices such as switches, routers, and firewalls.
On the other hand, the control plane is responsible for making decisions on how data traffic is forwarded. It includes routing protocols, such as OSPF or BGP, and other protocols that enable communication between network devices. The control plane also configures and manages the data plane.
The policy plane, also known as the management plane, is responsible for setting policies and rules for traffic forwarding. It defines how traffic should be forwarded and controlled in the network. This plane is responsible for managing network resources and security policies.
In summary, while the management and control planes are centralized, the data plane is distributed across the network devices and responsible for traffic forwarding.