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eBGP clarifications

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netravnen 2017-09-09 23:27:38 +02:00
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chapter/layer3.tex
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@ -103,7 +103,7 @@ Problems by running \textit{Full Mesh} is the formula of \[ iBGPsessions = n*(n-
\gls{ebgp} connections is inherently different from \gls{ibgp} connections. Some assumptions are made such as
\begin{enumerate}
\item a \gls{ttl} of 1 is the default\footnote{Multi-hop \gls{ebgp} can thou be configured},
\item a \gls{ttl} of 1 is the default\footnote{Multi-hop \gls{ebgp} can thou be configured and therefore increase the max-\gls{ttl} value},
\item distance is set to 20 compared to 200 for \gls{ibgp} routes,
\item Next hop does \textit{not} change for \gls{ebgp} routes advertised to \gls{ibgp} neighbours.
\item Next hop does \textit{not} change for \gls{ebgp} routes advertised to \gls{ibgp} neighbours \textit{by-default}\footnote{Often times it is necessary to tell a router to set itself as the next-hop before advertising to \gls{ibgp} neighbours}.
\end{enumerate}