add simulation code file

Signed-off-by: Avinal Kumar <avinal.xlvii@gmail.com>
2026-01-09 22:58:35 +05:30 · 2021-03-26 15:07:39 +05:30
parent fde4a89082
commit 5f6087499e
1 changed files with 124 additions and 0 deletions
--- a/computer_networks/lab/lab6/first.cc
+++ b/computer_networks/lab/lab6/first.cc
@@ -0,0 +1,124 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * /mnt/z/my_git/sixth-semester/computer_networks/simulation/scratch/lab/first.cc
+ * @file first.cc
+ * @author Avinal Kumar
+ * @since March 26, 2021
+ *
+ * Point to Point UDP Network Simulation
+ * Data Rate:             200mbps
+ * Transmission Delay:    5ms
+ * Base Address:          172.16.1.0
+ * UDP Server Start Time: 2 sec
+ * UDP Server Stop Time:  25 sec
+ * UDP Packet Interval:   1.5 sec
+ * Number of packets:     10
+ * UDP Packet Size:       2048 bytes
+ * UDP Client Start Time: 2 sec
+ * UDP Client Stop Time:  25 sec
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "ns3/applications-module.h"
+#include "ns3/core-module.h"
+#include "ns3/internet-module.h"
+#include "ns3/network-module.h"
+#include "ns3/point-to-point-module.h"
+#include <iostream>
+
+// Default Network Topology
+//
+//       10.1.1.0
+// n0 -------------- n1
+//    point-to-point
+//
+
+using namespace ns3;
+
+NS_LOG_COMPONENT_DEFINE("FirstScriptExample");
+
+int main(int argc, char *argv[]) {
+  std::cout << "* Point to Point UDP Network Simulation" << std::endl
+            << "* Data Rate:             200mbps" << std::endl
+            << "* Transmission Delay:    5ms" << std::endl
+            << "* Base Address:          172.16.1.0" << std::endl
+            << "* UDP Server Start Time: 2 sec" << std::endl
+            << "* UDP Server Stop Time:  25 sec" << std::endl
+            << "* UDP Packet Interval:   1.5 sec" << std::endl
+            << "* Number of packets:     10" << std::endl
+            << "* UDP Packet Size:       2048 bytes" << std::endl
+            << "* UDP Client Start Time: 2 sec" << std::endl
+            << "* UDP Client Stop Time:  25 sec\n"
+            << std::endl
+            << "Default Network Topology" << std::endl
+            << "      10.1.1.0" << std::endl
+            << "n0 -------------- n1" << std::endl
+            << "   point-to-point\n"
+            << std::endl;
+
+  CommandLine cmd(__FILE__);
+  cmd.Parse(argc, argv);
+
+  Time::SetResolution(Time::NS);
+  LogComponentEnable("UdpEchoClientApplication", LOG_LEVEL_INFO);
+  LogComponentEnable("UdpEchoServerApplication", LOG_LEVEL_INFO);
+
+  NodeContainer nodes;
+  nodes.Create(2);
+
+  PointToPointHelper pointToPoint;
+  // 1. Set the Data rate of the point to point channel to 200Mbps
+  pointToPoint.SetDeviceAttribute("DataRate", StringValue("200Mbps"));
+  // 2. Set the Transmission Delay of the channel to 5ms
+  pointToPoint.SetChannelAttribute("Delay", StringValue("5ms"));
+
+  NetDeviceContainer devices;
+  devices = pointToPoint.Install(nodes);
+
+  InternetStackHelper stack;
+  stack.Install(nodes);
+
+  Ipv4AddressHelper address;
+  // 3. Change the base address of the point to point network to 172.16.1.0
+  address.SetBase("172.16.1.0", "255.255.255.0");
+
+  Ipv4InterfaceContainer interfaces = address.Assign(devices);
+
+  UdpEchoServerHelper echoServer(9);
+
+  ApplicationContainer serverApps = echoServer.Install(nodes.Get(1));
+  // 4. Start the UDP server at 2 seconds into the start of the simulation
+  serverApps.Start(Seconds(2.0));
+  // 5. Stop the UDP server after 25 seconds into the simulation
+  serverApps.Stop(Seconds(25.0));
+
+  UdpEchoClientHelper echoClient(interfaces.GetAddress(1), 9);
+  // 7. Set the number of packets transmitted from client to server equal to 10
+  echoClient.SetAttribute("MaxPackets", UintegerValue(10));
+  // 6. Set the UDP packets interval from client to server as 1.5 sec.
+  echoClient.SetAttribute("Interval", TimeValue(Seconds(1.5)));
+  // 8. Set the UDP packet size sent from client to server as 2048 bytes.
+  echoClient.SetAttribute("PacketSize", UintegerValue(2048));
+
+  ApplicationContainer clientApps = echoClient.Install(nodes.Get(0));
+  // 9. Start the UDP client at 2 seconds into the start of the simulation
+  clientApps.Start(Seconds(2.0));
+  // 10. Stop the UDP client after 25 seconds into the simulation
+  clientApps.Stop(Seconds(25.0));
+
+  Simulator::Run();
+  Simulator::Destroy();
+  return 0;
+}