Chapter 9 SDN

is a recent technology that allows network and security professionals to manage, control, and make changes to a network.

SDN

What does SDN stand for?

software defined networking

The _____________ is software that is able to inventory hardware components in the network, gather network statistics, make routing decisions based on gathered data, and facilitate communication between devices from different vendors. It can also be used to make wide-spread configuration changes on just one device.

controller

The SDN architecture consists of _______ layers.

three

The ____________ layer communicates with the Control layer through what is called the northbound interface. These are sometimes called northbound APIs.

application

The _________ layer receives its requests from the Application layer and then provides the Physical layer with its configuration and instructions.

control

The physical layer is also known as the _________ layer

infrastructure

The __________ layer communicates to the Control layer through the southbound interface. The individual networking devices use southbound APIs to communicate with the control plane and vice versa.

physical