Tests in Mininet Env

MininetController.py

@@ -0,0 +1,63 @@
+from mininet.net import Mininet
+from mininet.node import Controller, OVSSwitch
+from mininet.cli import CLI
+from mininet.log import setLogLevel
+
+class CustomController( Controller ):
+    "Open vSwitch controller"
+    def __init__( self, name, **kwargs ):
+        kwargs.setdefault( 'command', self.isAvailable() or
+                           'ovs-controller' )
+        Controller.__init__( self, name, **kwargs )
+
+
+# class CustomController(Controller):
+#     def _handle_ConnectionUp(self, event):
+#         # Handle new connection
+#         dpid_str = dpid_to_str(event.dpid)
+#         log.info("Switch %s connected", dpid_str)
+#         self.connection = event.connection
+#         event.connection.addListeners(self)
+
+#     def _handle_PacketIn(self, event):
+#         # Handle incoming packet
+#         packet = event.parsed
+#         if packet.type == ethernet.IP_TYPE:
+#             ip_packet = packet.payload
+#             src_ip = ip_packet.srcip
+#             dst_ip = ip_packet.dstip
+#             log.info("Source IP: %s, Destination IP: %s", src_ip, dst_ip)
+
+#         # Call the parent handler to continue processing other events
+#         super(CustomController, self)._handle_PacketIn(event)
+
+def create_topology():
+    net = Mininet(controller=Controller, switch=OVSSwitch)
+
+    # Create network nodes
+    h1 = net.addHost('h1')
+    h2 = net.addHost('h2')
+    s1 = net.addSwitch('s1', cls=OVSSwitch)
+
+    # Create links
+    net.addLink(h1, s1)
+    net.addLink(h2, s1)
+
+    # Start the network
+    net.start()
+
+    # Create a custom controller instance
+    controller = net.addController('c1', controller=CustomController)
+
+    # Connect the switch to the controller
+    s1.start([controller])
+
+    # Enter command line mode
+    CLI(net)
+
+    # Stop the network
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel('info')
+    create_topology()

MininetNetPractice.py

@@ -1,10 +1,10 @@
-import configparser
+import sys
 from colorama		import Fore, Style
 from mininet.net	import Mininet
+from mininet.link	import TCLink
 from mininet.topo	import Topo
 from mininet.node	import Node
 from mininet.cli	import CLI
-from mininet.link	import TCLink
 from mininet.log	import setLogLevel
 
 class MyRouter (Node):
@@ -42,6 +42,12 @@ def build_topology(config_file):
 				node2 = parts[2]
 				topo.addLink(elements.get(node1), elements.get(node2))
 
+			elif parts[0] == 'SN_link':		#Parse general links switches to nodes
+				switch = parts[1]
+				node = parts[2]
+				bandwidth = int(parts[3])
+				topo.addLink(elements.get(switch), elements.get(node), bw=bandwidth)
+
 			if parts[0] == 'host':			#Parse hosts
 				host_name = parts[1]
 				host_ip = parts[2]
@@ -71,19 +77,22 @@ def build_topology(config_file):
 				topo.addLink(elements.get(host), elements.get(router), intfName1=host_intfName, intfName2=router_intfName, params2={'ip' : router_intfIP})
 
 			elif parts[0] == 'linkRS':		#Parse links routers to switches
-				node1 = parts[1]
+				switch = parts[1]
-				node2 = parts[2]
+				router = parts[2]
-				# topo.addLink	TODO
+				router_intfName = parts[3]
+				router_intfIP = parts[4]
+				topo.addLink(elements.get(switch), elements.get(router), intfName2=router_intfName, params2={'ip' : router_intfIP})
 
 			elif parts[0] == 'linkSS':		#Parse links switches to switches
-				node1 = parts[1]
+				switch1 = parts[1]
-				node2 = parts[2]
+				switch2 = parts[2]
-				# topo.addLink	TODO
+				topo.addLink(elements.get(switch1), elements.get(switch2))
 
 			elif parts[0] == 'linkSH':		#Parse links switches to hosts
-				node1 = parts[1]
+				switch = parts[1]
-				node2 = parts[2]
+				host = parts[2]
-				# topo.addLink	TODO
+				host_intfName = parts[3]
+				topo.addLink(elements.get(switch), elements.get(host), intfName2=host_intfName)
 
 	return topo
 
@@ -119,4 +128,12 @@ def run_topology(config_file):
 	net.stop()								#Stopping the network
 
 if __name__ == '__main__':
+	if '-f' in sys.argv:
+		try:
+			file_index = sys.argv.index('-f') + 1
+			config_file = sys.argv[file_index]
+			run_topology(config_file)
+		except IndexError:
+			print("Error: No configuration file provided after -f flag.")
+	else:
 		run_topology('MininetTopo.conf')

MininetRL.py

@@ -50,7 +50,7 @@ class MyTCPAgent:
         # Implement TCP data transfer simulation
         
         # Placeholder logic: Simulating data transfer
-        time.sleep(0.1)  # Simulating data transfer delay
+        # time.sleep(0.1)  # Simulating data transfer delay
         
         # Simulate congestion control by waiting for a fixed amount of time
         time.sleep(0.1)
@@ -136,19 +136,14 @@ class WindowPredictionAgent:
         max_q_value = max(self.q_table[curr_state].values())  # Get the maximum Q-value for the current state
         self.q_table[prev_state][prev_action] += self.alpha * (reward + self.gamma * max_q_value - self.q_table[prev_state][prev_action])
 
-# Create the Mininet network with custom topology
-def create_network():
-    topo = MyTopology()
-    net = Mininet(topo=topo)
-    net.start()
-    return net
-
 # Main function
 if __name__ == '__main__':
     setLogLevel('info')
     
     # Create the Mininet network
-    net = create_network()
+    topo = MyTopology()
+    net = Mininet(topo=topo)
+    net.start
     
     # Instantiate TCP and RL agents
     tcp_agent = MyTCPAgent()
@@ -161,7 +156,6 @@ if __name__ == '__main__':
     
     # Perform data transfer with RL-based tunnel selection and window prediction
     start_time = time.time()
-    
     while True:
         if time.time() - start_time > 10:  # End packet exchange after <X> seconds
             break
@@ -172,14 +166,14 @@ if __name__ == '__main__':
         tcp_agent.handle_data_transfer(tunnel, window_size)
 
         # Update RL agents based on rewards
-        reward = 0.5  # Actual reward value
+        reward = -0.5  # Actual reward value
         tunnel_agent.update_policy(reward)
         # window_agent.update_policy(reward)
 
     # Stop the Mininet network
     net.stop()
 
-    # Plot Transmission Round versus Congestion Window Size
+    # Plot Transmission Round and Congestion Window Size
     plt.plot(tcp_agent.transmission_rounds, tcp_agent.congestion_window_sizes)
     plt.xlabel('Transmission Round')
     plt.ylabel('Congestion Window Size')

MininetSDWAN.py

@@ -1,109 +1,84 @@
-import heapq
-import random
 from mininet.net import Mininet
-from mininet.node import OVSSwitch, Controller
+from mininet.node import Controller
-from mininet.link import TCLink
-from mininet.net	import Mininet
-from mininet.topo	import Topo
-from mininet.node	import Node
-from mininet.cli	import CLI
-from mininet.link	import TCLink
 from mininet.log import setLogLevel
+from mininet.cli import CLI
+from pox.lib import of
+import time
+import matplotlib.pyplot as plt
+
+# Create empty lists to store the timestamp and latency values
+timestamps = []
+latencies = []
+
+class PacketCopyController(Controller):
+    def __init__(self, name, target_host, **kwargs):
+        Controller.__init__(self, name, **kwargs)
+        self.target_host = target_host
+
+    def _handle_PacketIn(self, event):
+        packet = event.parsed
+        self.packet_out(event.port, packet)
+        self.packet_out_to_host(packet)
+        # Measure latency and store timestamp and latency values
+        latency = time.time() - event.created
+        timestamps.append(time.time())
+        latencies.append(latency)
+
+    def packet_out(self, out_port, packet):
+        msg = of.ofp_packet_out()
+        msg.data = packet.pack()
+        action = of.ofp_action_output(port=out_port)
+        msg.actions.append(action)
+        self.connection.send(msg)
+
+    def packet_out_to_host(self, packet):
+        host = self.net.get(self.target_host)
+        if host:
+            host.sendMsg(packet)
 
-class MyRouter (Node):
+if __name__ == '__main__':
-    def config(self, **params):
+    setLogLevel('info')
-        super(MyRouter, self).config(**params)
+
-        self.cmd('sysctl net.ipv4.ip_forward=1')		#Enable forwarding on the router
+    # Creazione della rete Mininet
-    def terminate(self):
+    net = Mininet(controller=PacketCopyController)
-        self.cmd('sysctl net.ipv4.ip_forward=0')		#Disable forwarding on the router
+
-        super(MyRouter, self).terminate
+    # Creazione degli host e degli switch
-
+    h1 = net.addHost('h1')
-def create_topology():
+    h2 = net.addHost('h2')
-    net = Topo()
+    h3 = net.addHost('h3')
-
+    s1 = net.addSwitch('s1')
-    # Create the SD-WAN sites
+
-    site1 = net.addHost('site1')
+    # Creazione dei collegamenti
-    site2 = net.addHost('site2')
+    net.addLink(h1, s1)
-    site3 = net.addHost('site3')
+    net.addLink(h2, s1)
-
+    net.addLink(h3, s1)
-    # Create the virtual SD-WAN devices
+
-    sdwan1 = net.addHost('sdwan1')
+    # Create the plot
-    sdwan2 = net.addHost('sdwan2')
+    plt.figure()
-
+    plt.xlabel('Time')
-    # Create switches
+    plt.ylabel('Latency (seconds)')
-    switch1 = net.addSwitch('s1')
+    plt.title('Network Latency')
-
+
-    # Connect the hosts and switches
+    # Avvio della rete e assegnazione del controller
-    net.addLink(site1, switch1, bw=10, delay='10ms')
+        # Add the POX controller
-    net.addLink(site2, switch1, bw=5, delay='20ms')
+    controller = net.addController(name='controller', target_host='h3', controller=PacketCopyController, ip='127.0.0.1', port=6633)
-    net.addLink(site3, switch1, bw=8, delay='15ms')
+    net.start()
-    net.addLink(sdwan1, switch1, bw=100, delay='1ms')
+    controller.start()
-    net.addLink(sdwan2, switch1, bw=100, delay='1ms')
+    # controller = net.controllers[0]
-
+    # controller.net = net
-    return net
+
-
+    # Start the plot animation
-def dynamic_path_selection(net, link_qos):    # Function to select the best path based on real-time conditions using Dijkstra algorithm with QoS metrics
+    plt.ion()
-
+    plt.show()
-    # Add a random factor to the QoS metric
+
-    random_range = 4
+    try:
-    for link in link_qos:
+        while True:
-        link_qos[link] += random.randint(-random_range, random_range)
+            # Update the plot with new latency data
-
+            plt.plot(timestamps, latencies, 'b-')
-    # Perform Dijkstra algorithm to find the best path based on QoS metrics
+            plt.draw()
-    def dijkstra(source):
+            plt.pause(0.1)
-        distance = {node: float('inf') for node in net}
+    except KeyboardInterrupt:
-        distance[source] = 0
+        pass
-        queue = [(0, source)]
-        while queue:
-            dist, node = heapq.heappop(queue)
-            if dist > distance[node]:
-                continue
-            for neighbor, _, link_info in net[node].connectionsTo(net):
-                qos = link_qos.get(link_info[0].intf1.name)
-                new_dist = dist + qos
-                if new_dist < distance[neighbor]:
-                    distance[neighbor] = new_dist
-                    heapq.heappush(queue, (new_dist, neighbor))
-        return distance
-
-    # Run Dijkstra algorithm from each site to determine the best path
-    site1_distance = dijkstra('site1')
-    site2_distance = dijkstra('site2')
-    site3_distance = dijkstra('site3')
-    sdwan1_distance = dijkstra('sdwan1')
-    sdwan2_distance = dijkstra('sdwan2')
-
-    # Select the best path based on minimum total QoS distance
-    best_path = min(site1_distance, site2_distance, site3_distance, sdwan1_distance, sdwan2_distance,
-                    key=lambda x: sum(x.values()))
-    print("Best path based on QoS metrics:")
-    for node, distance in best_path.items():
-        print(f"Node: {node}, Total QoS Distance: {distance}")
-        
-def run_topology():
-    setLogLevel('info')		#Different logging levels are 'info' 'warning' 'error' 'debug'
-    topo = create_topology()
-    net = Mininet(topo=topo, link=TCLink)
-    # net.addController('c0', controller=Controller) #non serve metterlo esplicitamente
-
-    net.start()		#Starting the network
-    # Define QoS metrics for each link (example values)
-    link_qos = {
-        'site1-eth0': 8,   # QoS value for link site1 -> switch1
-        'site2-eth0': 6,   # QoS value for link site2 -> switch1
-        'site3-eth0': 9,   # QoS value for link site3 -> switch1
-        'sdwan1-eth0': 10, # QoS value for link sdwan1 -> switch1
-        'sdwan2-eth0': 7   # QoS value for link sdwan2 -> switch1
-    }
-
-    # Add a random factor to the QoS metric
-    random_range = 4
-    for link in link_qos:
-        link_qos[link] += random.randint(-random_range, random_range)
 
-    dynamic_path_selection(net, link_qos)
     CLI(net)
-    net.stop()		#Stopping the network
+    net.stop()
-
-if __name__ == '__main__':
-    run_topology()

MininetTopo.conf

@@ -1,47 +1,61 @@
 ######### Set Network Nodes #########
 ##  N_host name                    ##
+##  N_switch name                  ##
 ##  host name intfIP/mask defRoute ##
-##  N_router name                  ##
 ##  router name intfIP/mask        ##
-##  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
+# host H2 161.46.247.3/25 161.46.247.1
 # router R1 161.46.247.254/30
 # router R2 161.46.247.253/30
 
 N_host h1
 N_host h2
+N_host h3
 N_router r1
 N_router r2
-N_switch s1
+N_router r3
-N_switch s2
+
+# N_host h1
+# N_host h2
+# N_router r1
+# N_router r2
+# N_switch s1
+# N_switch s2
 
 ############################################
 ## The interface details defined inside   ##
 ## the node during its creation must be   ##
-## reused in the links before new         ##
+## used in the links before new           ##
 ## interfaces can be defined for the node.##
 ############################################# Set Network Links ############################################
 ##  NN_link node1, node2                                                                                  ##
+##  SN_link switch, node, bandwidth(Mbps)                                                                 ##
 ##  linkRR router1, router1_intfName, router1_intfIP/mask, router2, router2_intfName, router2_intfIP/mask ##
 ##  linkRH host, host_intfName, router, router_intfName, router_intfIP/mask                               ##
-##  linkRS                    TODO                                                                        ##
+##  linkRS switch, router, router_intfName, router_intfIP/mask                                            ##
-##  linkSS                    TODO                                                                        ##
+##  linkSS switch1, switch2                                                                               ##
-##  linkSH                    TODO                                                                        ##
+##  linkSH switch, host, host_intfName                                                                    ##
 ############################################################################################################
 # 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
+# linkRH H2 H21 R1 R11 161.46.247.1/25
+
+NN_link h1 r1
+NN_link h2 r2
+NN_link h3 r3
+NN_link r1 r2
+NN_link r2 r3
 
-NN_link s1 s2
+# NN_link r1 s1
-NN_link r1 s1
+# NN_link r2 s2
-NN_link r2 s2
+# NN_link r1 r2
-NN_link h1 s1
+# NN_link h1 s1
-NN_link h2 s2
+# NN_link h2 s2
 
 ################## Route Table ################
-## N_route           TODO                    ##
 ## route name final_destIP/mask nextHop intf ##
 ###############################################
 # route R1 161.46.247.192/27 161.46.247.254 R13

SteffeCluster.conf

@@ -0,0 +1,46 @@
+######### Set Network Nodes #########
+N_host steffe0
+N_host steffe1
+N_host steffe2
+N_host steffe3
+N_host steffe4
+N_host steffe5
+N_host steffe6
+N_host steffe7
+N_host steffe8
+N_host steffe9
+N_host steffe10
+N_host steffe11
+N_host steffe12
+N_host steffe13
+N_host steffe14
+N_host steffe15
+N_host steffe16
+N_host steffe17
+N_host steffe18
+N_host steffe19
+N_host steffe20
+N_switch s0
+
+############################################ Set Network Links ############################################
+SN_link s0 steffe0 1000
+SN_link s0 steffe1 1000
+SN_link s0 steffe2 1000
+SN_link s0 steffe3 1000
+SN_link s0 steffe4 1000
+SN_link s0 steffe5 1000
+SN_link s0 steffe6 1000
+SN_link s0 steffe7 1000
+SN_link s0 steffe8 1000
+SN_link s0 steffe9 1000
+SN_link s0 steffe10 1000
+SN_link s0 steffe11 1000
+SN_link s0 steffe12 1000
+SN_link s0 steffe13 1000
+SN_link s0 steffe14 1000
+SN_link s0 steffe15 1000
+SN_link s0 steffe16 1000
+SN_link s0 steffe17 1000
+SN_link s0 steffe18 1000
+SN_link s0 steffe19 1000
+SN_link s0 steffe20 1000

setup.txt

@@ -16,6 +16,7 @@ pip3 install mininet
 pip3 install ryu
 pip3 install --upgrade pip
 pip3 install pillow
+pip3 install pox
 pip3 install matplotlib
 sudo apt-get install mininet