diff --git a/MininetNetPractice.py b/MininetNetPractice.py
index a994102..cfe1e1c 100644
--- a/MininetNetPractice.py
+++ b/MininetNetPractice.py
@@ -25,6 +25,23 @@ def build_topology(config_file):
 			if line.startswith('#'):		#Skip comment
 				continue
 			parts = line.split(" ")			#Parse the topology file using spaces
+			if parts[0] == 'N_host':			#Parse hosts
+				host_name = parts[1]
+				elements[host_name] = topo.addHost(host_name)
+
+			elif parts[0] == 'N_router':		#Parse routers
+				router_name = parts[1]
+				elements[router_name] = topo.addNode(router_name)
+
+			elif parts[0] == 'N_switch':		#Parse switches
+				switch_name = parts[1]
+				elements[switch_name] = topo.addSwitch(switch_name)
+
+			elif parts[0] == 'NN_link':		#Parse general links nodes to nodes
+				node1 = parts[1]
+				node2 = parts[2]
+				topo.addLink(elements.get(node1), elements.get(node2))
+
 			if parts[0] == 'host':			#Parse hosts
 				host_name = parts[1]
 				host_ip = parts[2]
@@ -36,10 +53,6 @@ def build_topology(config_file):
 				router_ip = parts[2]
 				elements[router_name] = topo.addNode(router_name, cls=MyRouter, ip=router_ip)
 
-			elif parts[0] == 'switch':		#Parse switches
-				switch_name = parts[1]
-				elements[switch_name] = topo.addSwitch(switch_name)
-
 			elif parts[0] == 'linkRR':		#Parse links routers to routers
 				router1 = parts[1]
 				router1_intfName = parts[2]
diff --git a/MininetTopo.conf b/MininetTopo.conf
index 9ed35a1..1e935c9 100644
--- a/MininetTopo.conf
+++ b/MininetTopo.conf
@@ -1,35 +1,47 @@
 ######### Set Network Nodes #########
+##  N_host name                     ##
 ##  host name intfIP/mask defRoute ##
+##  N_router name                   ##
 ##  router name intfIP/mask        ##
-##  switch name                    ##
+##  N_switch name                    ##
 #####################################
-host H4 161.46.247.131/26 161.46.247.129
-host H3 161.46.247.196/27 161.46.247.195
-router R1 161.46.247.254/30
-router R2 161.46.247.253/30
+# host H4 161.46.247.131/26 161.46.247.129
+# host H3 161.46.247.196/27 161.46.247.195
+# router R1 161.46.247.254/30
+# router R2 161.46.247.253/30
 
-# The interface details defined inside
-# the node during its creation must be
-# reused in the links before new
-# interfaces can be defined for the node.
+N_host h1
+N_host h2
+N_router r1
+N_router r2
+N_router r3
+N_switch s1
+N_switch s2
+
+############################################
+## The interface details defined inside   ##
+## the node during its creation must be   ##
+## reused in the links before new         ##
+## interfaces can be defined for the node.##
 ############################################# Set Network Links ############################################
 ##  linkRR router1, router1_intfName, router1_intfIP/mask, router2, router2_intfName, router2_intfIP/mask ##
 ##  linkRH host, host_intfName, router, router_intfName, router_intfIP/mask                               ##
 ##  linkRS                                                                                                ##
 ##  linkSS switch1, switch2                                                                               ##
 ##  linkSH switch, host ,host_intfName                                                                    ##
+##  NN_link node1, node2                                                                                   ##
 ############################################################################################################
-linkRR R1 R13 161.46.247.254/30 R2 R21 161.46.247.253/30
-linkRH H3 H31 R2 R22 161.46.247.195/27
-linkRH H4 H41 R2 R23 161.46.247.129/26
-# linkRS
-# linkRS
-# linkSS s2 s1
-# linkSH S1 H1 H11
-# linkSH S1 H2 H21
+# linkRR R1 R13 161.46.247.254/30 R2 R21 161.46.247.253/30
+# linkRH H3 H31 R2 R22 161.46.247.195/27
+# linkRH H4 H41 R2 R23 161.46.247.129/26
+NN_link r1 s1
+NN_link r2 s2
+NN_link s1 s2
+NN_link h1 s1
+NN_link h2 s2
 
 ################## Route Table ################
 ## route name final_destIP/mask nextHop intf ##
 ###############################################
-route R1 161.46.247.192/27 161.46.247.254 R13
-route R1 161.46.247.128/26 161.46.247.254 R13
+# route R1 161.46.247.192/27 161.46.247.254 R13
+# route R1 161.46.247.128/26 161.46.247.254 R13