diff --git a/chapter/internet.tex b/chapter/internet.tex
index e45ec60..35c4ad7 100644
--- a/chapter/internet.tex
+++ b/chapter/internet.tex
@@ -1,3 +1,11 @@
-\chapter{Internet}
+\chapter{The Internet {\footnotesize "Post cold-war modern times"}}
 
-\section{BGP}
\ No newline at end of file
+\section{Service Providers}
+
+\section{IXP}
+
+\section{MPLS}
+
+\section{BGP}
+
+\section{eVPN}
\ No newline at end of file
diff --git a/chapter/layer3protocols.tex b/chapter/layer3protocols.tex
new file mode 100644
index 0000000..1325d4e
--- /dev/null
+++ b/chapter/layer3protocols.tex
@@ -0,0 +1,6 @@
+\chapter{Protocols Layer 3}
+
+\subimport{./section/}{routednetwork}
+
+\newpage
+
diff --git a/chapter/section/routednetwork.tex b/chapter/section/routednetwork.tex
index c58caf2..da80ef2 100644
--- a/chapter/section/routednetwork.tex
+++ b/chapter/section/routednetwork.tex
@@ -1,8 +1,8 @@
 \section{Routed Network}
 
-\subsection{OSPF}
-\subsection{IS-IS}
-\subsection{EIGRP}
-\subsection{RIP}
-\subsection{Static}
-\subsection{BGP}
+\section{OSPF}
+\section{IS-IS}
+\section{EIGRP}
+\section{RIP}
+\section{Static}
+\section{BGP}