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WIP: Layer 3 routing BGP

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chhan11 2017-06-18 14:56:04 +02:00
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chapter/layer3.tex
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@ -9,3 +9,29 @@
\section{Static}
\section{BGP}
\wikicommons{BGP_FSM}
The protocol of the internet used since 1994.\cite{wiki:Border_Gateway_Protocol}
\begin{itemize}
\item \itemhead{Properties}
\begin{itemize}
\item Uses tcp/179 as \gls{dst} port
\item Sends keep-alive message every 1 minute
\item Keep-alive message is 19 byte
\end{itemize}
\item \itemhead{Route exchange}
\begin{itemize}
\item Routes can be aggregated between \Glspl{as} by use of route-maps mechanism.
\item
\end{itemize}
\item \itemhead{States}
\begin{enumerate}
\item Idle: \Gls{bgp} while initializing refuses all incoming connections. Will initiate \Gls{tcp} connection to peer.
\item Connect: Waits for \Gls{tcp} connection. If \Gls{tcp} is established goes to state OpenSent. If \Gls{tcp} is \textit{un}successful ConnectRetry timer is started and then goes to Active state.
\item Active
\item OpenSent
\item OpenConfirm
\item Established
\end{enumerate}
\end{itemize}