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Layer 3: Add initial section for ISIS

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ch 2024-10-07 17:36:02 +02:00
parent 26aa1f7edb
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2 changed files with 44 additions and 17 deletions

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@ -55,6 +55,24 @@ Always remember the following points for Cisco devices:\cite{wiki:Administrative
\section{IS-IS}
\gls{isis} is the ISO standardized routing protocol. Designed for use by intermediate systems.
\gls{isis} compared to other routing protocols standardized in the \gls{ietf}.
\begin{itemize}
\item Everything is \gls{tlv} based. Making the protocol very extensible by standardizing new \gls{tlv} values.
\item The participating nodes communicates with its neighbors on \gls{l2}. Thereby not \textit{requiring} \gls{l3} addresses on the link. And instead uses the \gls{mac} to target the neighbor node.
\item The connection is done on per-interface. Similar to \gls{ospf3}. Instead of the global approach in \gls{ospf2}.
\begin{itemize}
\item The per-interface is the result of deciding the area is handled per-interface. Instead of at the per-node level.
\item The border between areas is at the node level. Instead of the interface level in \gls{ospf2}.
\end{itemize}
\item Uses its own ethertype of 0x22F4\cite{IEEE802N51:online}.
\begin{itemize}
\item \rfc{6325}.
\end{itemize}
\item Commun
\end{itemize}
\newpage
\section{EIGRP}
@ -226,12 +244,12 @@ The version of rip supporting ipv6. different to the standard rip in the ng vers
\section{Babel}
Babel is built on the principles of 1) \gls{dsdv}, 2) \gls{aodv}, and 3)
Babel is built on the principles of 1) \gls{dsdv}, 2) \gls{aodv}, and 3)
\gls{eigrp} protocols.
Made for hybrid networks\footnote{network contains wired and wireless links}
Made for hybrid networks\footnote{network contains wired and wireless links}
and can account for a high level of instability on wireless links.
Babel has been reported to be running stable in unstable wireless networks with
Babel has been reported to be running stable in unstable wireless networks with
a level of reliability and fast convergence.
\begin{itemize}
@ -239,24 +257,24 @@ a level of reliability and fast convergence.
\item Uses distributed Bellman-Ford algorithm,
\item \rfc{6126} in 45 pages, \textit{(28 are normative)}
\begin{enumerate}
\item Updates by \rfc{7298} {\scriptsize (The Babel extension
\item Updates by \rfc{7298} {\scriptsize (The Babel extension
mechanism)}, and
\item \rfc{7557} {\scriptsize (Babel \gls{hmac} Cryptographic
\item \rfc{7557} {\scriptsize (Babel \gls{hmac} Cryptographic
Authentication)}.
\end{enumerate}
\item Highly extensible protocol,\cite{BabelDoe86:online}
\item Supports \gls{ip4} and \gls{ip6}.
\end{itemize}
Babel on \underline{wired} networks uses by default hop-count. Can be
Babel on \underline{wired} networks uses by default hop-count. Can be
configured to include several values when computing the metrics.
On \underline{wireless} networks Babel should be configured to take into
account factors such as link latency, packet loss, hop-count, and radio
On \underline{wireless} networks Babel should be configured to take into
account factors such as link latency, packet loss, hop-count, and radio
diversity.
\subsection{Protocol support}
Currently the following projects include support for Babel:
Currently the following projects include support for Babel:
\cite{Babel-al30:online}
\begin{itemize}
@ -312,26 +330,26 @@ Route-maps is used to target a select set of routes and either modify/add/remove
\begin{enumerate}[label={\alph*)}]
\item \Gls{bgp} communities,
\item \Gls{ip} prefix,
\item \Gls{bgp} as-path,
\item \Gls{bgp} as-path,
\end{enumerate}
\end{itemize}
An simple example of using route-maps is
\begin{cisco}
ip prefix-list 1 permit 172.16.0.0/16
ip prefix-list 2 permit 192.168.1.0/24
ip prefix-list 1 permit 172.16.0.0/16
ip prefix-list 2 permit 192.168.1.0/24
!
route-map RED permit 10
match ip address prefix-list 1
route-map RED permit 10
match ip address prefix-list 1
set ip next hop 10.1.1.1
continue 20 ! Continues to apply rules normally only
! applied to prefix-list 2. To apply to
! prefix-list 1, too.
! Any attributes set in '20' will
! override any set during '10'.
route-map RED permit 20
match ip address prefix-list 2
route-map RED permit 20
match ip address prefix-list 2
set ip next hop 10.2.2.2 ! Last rule overrides previous rules from
! previous '10' rule-set.
\end{cisco}

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@ -57,4 +57,13 @@
month = {},
year = {},
note = {(Accessed on 02/18/2018)}
}
}
@misc{IEEE802N51:online,
author = {},
title = {IEEE 802 Numbers - https://www.iana.org/},
howpublished = {\url{https://www.iana.org/assignments/ieee-802-numbers/ieee-802-numbers.xhtml#ieee-802-numbers-1}},
month = {},
year = {},
note = {(Accessed on 10/01/2024)}
}