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netravnen 2017-05-22 21:11:27 +00:00
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18
code/addressplans/v4lab.txt Normal file
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LOOPBACKS: 192.0.2.0/24
Core Routers: 192.0.2.0/26
CR1: 192.0.2.1/32
CR2: 192.0.2.2/32
Distribution Switches: 192.0.2.64/26
DS1: 192.0.2.64/32
DS2: 192.0.2.65/32
Access Switches: 192.0.2.128/25
AS1: 192.0.2.132/29
AS2: 192.0.2.133/29
P2P LINKS: 192.168.255.0/24
CR1-DS1: 192.168.255.0/30
CR1-DS2: 192.168.255.4/30
CR2-DS1: 192.168.255.8/30
CR2-DS2: 192.168.255.12/30
DS1-DS2: 192.168.255.16/30

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# Code goes here

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137
main.tex
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\usepackage{lipsum}
\usepackage{fancybox}
\usepackage{varwidth}
\usepackage{enumitem}
% Define color
\definecolor{codegreen}{rgb}{0,0.6,0}
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\newcommand{\notice}[2]{%
\shadowbox{%
\begin{varwidth}{\linewidth}
\begin{varwidth}{0.85\linewidth}
\texttt{\textbf{#1}}\\
#2
\end{varwidth}
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% Use the roman numeric system for pagenumbers
\pagenumbering{roman}
\setlist[itemize,1]{leftmargin=\dimexpr 26pt-.2cm}
\setlist[itemize,2]{leftmargin=\dimexpr 26pt-.3cm}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% BEGIN DOCUMENT %
@ -125,7 +130,8 @@
\tableofcontents
% Define length between paragrahps
\setlength{\parskip}{1em}
\setlength{\parskip}{0.35em}
% Define lineheight
\renewcommand{\baselinestretch}{1.15}
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\chapter{Protocols}
\section{Routing}
\section{Routed Network}
\subsection{OSPF}
\subsection{IS-IS}
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\newpage
\section{VLAN}
\section{Switch Network}
\subsection{VTP}
\fig{vtp/implementing-vtp}{imp-vtp1}{VTP}
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\subsubsection{Example configuration}
\lstinputlisting{code/vtp/example.cfg}
\newpage
\subsection{Channel Bundling (aka. EtherChannel, PortChannel)}
Channel bundling is the "art" of using multiple physical links as one single logical link in when viewed from the perspective of the forwarding plane.
Technologies:
\begin{itemize}
\item \textbf{PAgP:} The Cisco-only thingy
\item \textbf{LACP:} The IEEE standard
\item \textbf{Static:} Just forced on
\end{itemize}
\fig{channelbundling/network-without-channelbundling}{noethernetchannel}%
{No Channelbundling present}
Channel bundling of switch ports in the network may or may not be the best idea, in regards to the networks growth rate in terms of min. required bandwidth.
Channel bundling spreads out the in and egress flows based upon one of several methods configured on the switch:
\begin{itemize}
\item Source to Destination MAC
\item Source to Destination IP
\end{itemize}
Keep in mind this will by no means archive true load balancing. Where all links are equally used based upon number of flows \textit{or} in terms of used bandwidth.
\fig{channelbundling/network-with-channelbundling}{withethernetchannel}%
{Channelbundling present}
\subsubsection{Protocol Properties}
\begin{itemize}
\item LACP
\begin{itemize}
\item Active: Enabled
\item Passive: Waits for LACP packets on the wire before enabled
\end{itemize}
\item PAgP
\begin{itemize}
\item Desirable: Enabled
\item Auto: Waits for PAgP packets on the wire before enabled
\end{itemize}
\end{itemize}
Some other \underline{required} settings to be (equal across all ports) aware of when configuring Channel bundling are
\begin{enumerate}
\item Port speeds
\item Duplex mode
\item Configured vlan ranges
\end{enumerate}
\subsubsection{Example configuration}
\lstinputlisting{code/channelbundling/example.cfg}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% BEGIN section: Spanning Tree %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newpage
\section{Spanning Tree}
\subsection{STP}
\subsection{PVST}
\subsection{RPVST+}
\subsection{MTP}
Spanning Tree exists for the \textbf{sole} reason to save "your" network and all the broadcast storms an network engineer having a bad day can by mistake create!
STP comes from the above desire where redundancy was wanted but no protocol existed before STP to help in this regard.
% Please add the following required packages to your document preamble:
% \usepackage{graphicx}
\begin{table}[h]
\centering
\caption{Spanning Tree standrds}
\label{stpstandards}
\resizebox{\columnwidth}{!}{%
\begin{tabular}{|l|l|l|l|l|}
\hline
\textbf{} & \textbf{Standard} & \textbf{Ressource Usage} & \multicolumn{2}{l|}{\textbf{Convergence}} \\ \hline
CST & 802.1D & Low & Slow & All vlans \\ \hline
PVST+ & Cisco & High & Slow & Per vlan \\ \hline
RSTP & 802.1w & So-so (Med.) & Fast & All vlans \\ \hline
RPVST+ & Cisco & On-the-double (V.High) & Fast & Per vlan \\ \hline
MST & 802.1s & Med. - High & Fast & Vlan list \\ \hline
\end{tabular}%
}
\end{table}
\subsection{Port Roles}
When a switch is enabled for Spanning Tree. One of the following roles will have been assumed by any port on the switch in question.
\begin{itemize}
\item \textbf{Root port:} Only 1 port on any switch (non-counting the root bridge!). Is always the port with the lowest metric (aka. best path) to the root bridge.
\item \textbf{Designated port:} A designated port is the port on any segment closest to the root bridge and forwarding traffic.
\item \textbf{\textit{Non}-designated port:} Put in blocking mode and not currently forwarding traffic.
\item \textbf{Disabled port:} The port has been one-way-or-another shut down.
\end{itemize}
\subsection{Standards}
\subsubsection{STP}
\subsubsection{PVST}
\subsubsection{RPVST+}
\subsubsection{MST}
\subsection{Features}
\begin{itemize}
\item PortFart
\item UplinkFast
\item BackboneFast
\item BPDU Guard
\item BPDU Filter
\item Root Guard
\item Loop Guard
\item Unidirectional Link Detection (UDLD)
\item FlexLinks
\end{itemize}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
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% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\renewcommand{\listfigurename}{List of plots}
\renewcommand{\listfigurename}{List of {\footnotesize hidden} Figures}
\listoffigures
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\renewcommand{\listtablename}{Tables}
\renewcommand{\listtablename}{Tables {\footnotesize hidding} on the pages}
\listoftables
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%