diff --git a/README.md b/README.md
index c5f7ef6..b3c9186 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,12 @@
   - [ ] GLBP
   - [ ] HSRP
   - [ ] VRRP
+- [ ] IP SLA
+- [ ] VSS
+- [ ] Storm Control
+- [ ] SDM Templates
+- [ ] PoE
+- [ ] SNMP
 
 ## Writing about
 - [X] NTP, SNTP
diff --git a/chapter/ntp.tex b/chapter/ntp.tex
index 40060dd..57db099 100644
--- a/chapter/ntp.tex
+++ b/chapter/ntp.tex
@@ -95,3 +95,5 @@ Generally today \gls{ntp}v3 or v4 is found. The difference to v4 \textit{(amongs
 	\item Automatic calculation of time-distribution\footnote{to archive high time accuracy against lowest bandwidth cost} in  a network based upon specific multicast groups leveraging v6 site-local multicast addresses.
 	\item \cliline{ntp-server ipv6-addr version 4}
 \end{itemize}
+
+\textbf{Beware} when using \gls{sntp} that \gls{ntp} cannot be used. The same \gls{udp} port is used.
diff --git a/main.tex b/main.tex
index 047ebf7..ae35fba 100644
--- a/main.tex
+++ b/main.tex
@@ -15,7 +15,7 @@
 
 % Only applied after generation of TOC
 \setlength{\parskip}{0.35em} % Define length between paragrahps
-\renewcommand{\baselinestretch}{1.15} % Define lineheight
+\renewcommand{\baselinestretch}{1.15} %6 Define lineheight
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %                                                    %
@@ -24,13 +24,20 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 \include{chapter/baseconf}
+
 \include{chapter/layer2}
+
 \include{chapter/l2tol3}
+
 \include{chapter/layer3}
+
 \include{chapter/dhcp}
+
 \include{chapter/fhrp}
 \include{chapter/ntp}
+
 \include{chapter/mgmt}
+
 \include{chapter/internet}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -40,6 +47,7 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 \clearpage
+
 \printglossary[type=\acronymtype,title=Special Terms,toctitle=List of terms]
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%