diff --git a/acronyms.tex b/acronyms.tex
index 67ad8f1..e7dd7ae 100644
--- a/acronyms.tex
+++ b/acronyms.tex
@@ -31,9 +31,11 @@
 \newacronym{evpn}{EVPN}{Ethernet Virtual Private Network}
 \newacronym{ftp}{FTP}{File Transfer Protocol}
 \newacronym{ftps}{FTPS}{File Transfer Protocol Secure}
+\newacronym{glbp}{GLBP}{Gateway Load Balancing Protocol}
 \newacronym{gps}{GPS}{Global Positioning System}
 \newacronym{gprs}{GPRS}{General Packet Radio Service}
 \newacronym{gsm}{GSM}{Global System for Mobile communications}
+\newacronym{hsrp}{HSRP}{Hot-Standby Routing Protocol}
 \newacronym{ieee}{IEEE}{Institute of Electrical and Electronics Engineers}
 \newacronym{igrp}{IGRP}{Interior Gateway Routing Protocol}
 \newacronym{imap}{IMAP}{Internet Message Access Protocol}
@@ -96,6 +98,7 @@
 \newacronym{utc}{UTC}{Coordinated Universal Time}
 \newacronym{vlan}{VLAN}{Virtual Local Area Network}
 \newacronym{vpn}{VPN}{Virtual Private Network}
+\newacronym{vrrp}{VRRP}{Virtual Router Redundancy Protocol}
 \newacronym{vtp}{VTP}{Virtual Trunking Protocol}
 \newacronym{vxlan}{VXLAN}{Virtual eXtensible Local Area Network}
 \newacronym{wdm}{WDM}{}
diff --git a/chapter/fhrp.tex b/chapter/fhrp.tex
deleted file mode 100644
index 6a8c61f..0000000
--- a/chapter/fhrp.tex
+++ /dev/null
@@ -1,7 +0,0 @@
-\chapter{FHRP}
-
-\section{VRRP}
-
-\section{GLBP}
-
-\section{HSRP}
diff --git a/chapter/mgmt.tex b/chapter/mgmt.tex
index 49ac06b..3ca2dd2 100644
--- a/chapter/mgmt.tex
+++ b/chapter/mgmt.tex
@@ -427,4 +427,18 @@ snmp-server ifindex persist
 
 \subsubsection{3G/4G}
 
-\subsubsection{ADSL}
+\subsubsection[ADSL]{Asymmetric Digital Subscriber Line}
+
+\chapter[HA]{High Availability}
+
+\section{StackWise}
+
+\section[VSS]{Virtual Switch Stacking}
+
+\section[FHRP]{First Hop Redundancy Protocol}
+
+\subsection[VRRP]{Virtual Router Redundancy Protocol}
+
+\subsection[HSRP]{Hot-Standby Routing Protocol}
+
+\subsection[GLBP]{Gateway Load Balancing Protocol}
\ No newline at end of file
diff --git a/main.tex b/main.tex
index 649df4c..b2b7493 100644
--- a/main.tex
+++ b/main.tex
@@ -28,7 +28,6 @@
 \include{chapter/l2tol3}
 \include{chapter/layer3}
 \include{chapter/dhcp}
-\include{chapter/fhrp}
 \include{chapter/ntp}
 \include{chapter/mgmt}
 \include{chapter/internet}