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\chapter{Conceptual Design of a SDN Controller as Network Supervisor}
\label{ch:conceptual-design}
\section{Conceptual Structures}
\label{ch:conceptual-design:structures}
This section discusses the basic conceptual organization forms for data networks, as this seems to not clear in many contexts.
\section{Building Blocks}
\label{ch:conceptual-design:collection}
Some conceptual building blocks for a network supervisor:
\begin{description}
\item [host inventory] \hfill \\ This contains all known hosts, independent their relationship, of the network. This includes their hardware configuration, such as, interfaces attached to a particular host.
\item [host configuration] \hfill \\ This is based on the information provided by the host inventory and contains the actual operational configuration of the hosts. This will probably contain only the configuration of the network devices, such as, switches and routers, potentially also servers, but not end-hosts.
\item [Network ] \hfill \\
\item [Network Configuration)] \hfill \\
\item [Southbound Interface (SBI)] \hfill \\
\item [Northbound Interface (SBI)] \hfill \\
\item [East-West-bound Interface (SBI)] \hfill \\
\end{description}