\documentclass[10pt,a4paper]{article}

% Packages
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\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{justinpam08}
\pdfinfo{
  /Title (ccnp-encor.pdf)
  /Creator (Cheatography)
  /Author (justinpam08)
  /Subject (CCNP ENCOR Cheat Sheet)
}

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% This two commands together give roughly
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% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
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% Header and Footer
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\fancyhead{} % Set header to blank
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\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{CCNP ENCOR Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{justinpam08} via \textcolor{DarkBackground}{\uline{cheatography.com/38902/cs/16066/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}justinpam08 \\
  \uline{cheatography.com/justinpam08} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 11th June, 2018.\\
   Updated 25th February, 2020.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
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  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{x{2.33919 cm} x{2.63781 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{802.1Q Fields}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Tag protocol identifier (TPID):}} & 16-bit is field set to 0x8100 to identify the packet as an 802.1Q packet. \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
{\bf{Priority code point (PCP):}} & 3-bit field indicates a class of service (CoS) as part of Layer 2 quality of service (QoS) between switches. \tn 
% Row Count 10 (+ 6)
% Row 2
\SetRowColor{LightBackground}
{\bf{Drop elgible indicator (DEI):}} & This 1-bit field indicates whether the packet can be dropped when there is bandwidth contention. \tn 
% Row Count 15 (+ 5)
% Row 3
\SetRowColor{white}
{\bf{VLAN identifier (VLAN ID):}} & This 12-bit field specifies the VLAN associated with a network packet. \tn 
% Row Count 19 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.4977 cm} p{0.4977 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Centralized Forwarding VS Distributed Forwarding}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\bf{\{\{fa-asterisk\}\}Centralized Forwarding\{\{fa-asterisk\}\}}}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{⇨ When a route processor (RP) engine is equipped with a forwarding engine} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\bf{\{\{fa-asterisk\}\}Distributed Forwarding\{\{fa-asterisk\}\}}}} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{⇨ Forwarding engines are equipped in the line cards} \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{⇨ When a packet is received on the ingress line card, it is transmitted to the local forwarding engine. The forwarding engine performs a packet lookup, and if it determines that the outbound interface is local, it forwards the packet out a local interface. If the outbound interface is located on a different line card, the packet is sent across the switch fabric, also known as the backplane, directly to the egress line card, bypassing the RP.} \tn 
% Row Count 17 (+ 9)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.69218 cm} x{3.28482 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{VLAN Ranges}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{VLAN 0}} & {\bf{{\emph{Used for 802.1P Traffic}}}}   Cannot be modified/deleted \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
{\bf{VLAN 1}} & {\bf{{\emph{Default VLAN}}}}    Cannot be modified/deleted \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{VLAN 1002 to 1005}} & {\bf{{\emph{Reserve Range}}}}     Can be modified/deleted \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{VLAN 2 to 1001}} & {\bf{{\emph{Normal Range}}}}    Can be modified/deleted \tn 
% Row Count 9 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{\bf{VLAN 1006 to 4094}} & {\bf{{\emph{Extended Range}}}}    Can be modified/deleted \tn 
% Row Count 11 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}