diff --git a/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Dxe.inf b/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Dxe.inf
index b54321caaa..fb7f4f8502 100644
--- a/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Dxe.inf
+++ b/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Dxe.inf
@@ -2,7 +2,17 @@
 #  This module produces EFI TCPv4 Protocol and EFI TCPv4 Service Binding Protocol.
 #
 #  This module produces EFI TCPv4(Transmission Control Protocol version 4) Protocol
-#  upon EFI IPv4 Protocol, to provide basic TCPv4 I/O services.
+#  upon EFI IPv4 Protocol, to provide basic TCPv4 I/O services. This driver only 
+#  supports IPv4 network stack.
+#
+#  Notes:
+#  1) This driver can't co-work with the TcpDxe driver in NetworkPkg.
+#  2) This driver might have some issues that have been fixed in the TcpDxe driver 
+#     in NetworkPkg.
+#  3) This driver supports fewer features than the TcpDxe driver in NetworkPkg (e.g. IPv6, 
+#     TCP Cancel function).
+#  4) TcpDxe driver in NetworkPkg is recommended for use instead of this one even though
+#     both of them can be used.
 #
 #  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
 #  This program and the accompanying materials