How to Develop Routing Interface Protocol Projects Using NS3

To develop the Routing Interface Protocol used the method in NS3. Follow the below step by step procedures:

What is a Routing Interface Protocol?

Describe the Routing Interface Protocols on how well the network interfaces communicate among multiple routing protocols for instance OSPF, BGP, RIP, AODV, etc. This protocol facilitates:

  • Packet sending among their interfaces
  • Protocol interoperability for sample OSPF to BGP
  • Performance optimization for multi-interface routers

In NS3, routing protocols function on network interfaces using the Internet Stack Component and Routing Helpers.

Steps to Develop a Routing Interface Protocol Project in NS3

  1. Install NS3 and Required Modules

We assure the NS3 tool is installed and compiled:

sudo apt update

sudo apt install -y git build-essential python3 cmake

git clone https://gitlab.com/nsnam/ns-3-dev.git ns-3

cd ns-3

./ns3 configure –enable-examples –enable-tests

./ns3 build

Required NS3 Modules:

  • Internet Module → Designed for IP-based on routing.
  • Point-to-Point Module → aimed at Network interfaces.
  • Routing Module → it considers the components for OSPF, BGP, AODV, etc.
  • Flow Monitor Module → Performance analysis.
  1. Define Network Topology

It is a simple routing interface protocol topology consists of:

  • Several routers by various interfaces such as Ethernet, LTE, Wi-Fi
  • Routing protocols for instance OSPF, BGP, AODV
  • Data transmission among their nodes by routing interfaces

Example: Creating a Multi-Interface Network

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

#include “ns3/point-to-point-module.h”

#include “ns3/applications-module.h”

using namespace ns3;

int main(int argc, char *argv[]) {

NodeContainer routers, clients;

routers.Create(2);  // Two routers

clients.Create(2);  // Two end devices

PointToPointHelper p2p;

p2p.SetDeviceAttribute(“DataRate”, StringValue(“1Gbps”));

p2p.SetChannelAttribute(“Delay”, StringValue(“2ms”));

NetDeviceContainer routerDevices1 = p2p.Install(routers.Get(0), routers.Get(1));

NetDeviceContainer routerDevices2 = p2p.Install(routers.Get(1), clients.Get(1));

InternetStackHelper internet;

internet.Install(routers);

internet.Install(clients);

Ipv4AddressHelper address;

address.SetBase(“10.1.1.0”, “255.255.255.0”);

address.Assign(routerDevices1);

address.SetBase(“10.1.2.0”, “255.255.255.0”);

address.Assign(routerDevices2);

Simulator::Stop(Seconds(10));

Simulator::Run();

Simulator::Destroy();

return 0;

}

✅ This code sets up:

  • Two routers through changed the interfaces.
  • Point-to-point (P2P) connections are connecting to the clients.
  1. Implement Routing Interface Protocols

Now, we increase the routing protocols for handle the interfaces.

Example: Adding OSPF Routing Protocol

#include “ns3/ipv4-global-routing-helper.h”

Ipv4GlobalRoutingHelper globalRouting;

globalRouting.PopulateRoutingTables();

✅ OSPF automatically learns network topology and manages interfaces dynamically.

  1. Interfacing Routing Protocols (OSPF ↔ BGP)

For assure the multi-protocol routing, used the List Routing Helper.

Example: Mixing OSPF and BGP

#include “ns3/olsr-helper.h”

#include “ns3/rip-helper.h”

OlsrHelper olsr;

RipHelper rip;

Ipv4ListRoutingHelper listRouting;

listRouting.Add(olsr, 10);  // OLSR with priority 10

listRouting.Add(rip, 20);   // RIP with priority 20

InternetStackHelper internet;

internet.SetRoutingHelper(listRouting);

internet.Install(routers);

✅ This enables:

  • OLSR used for intra-domain routing (LAN)
  • RIP used for inter-domain routing (WAN)
  1. Simulating Traffic over Routing Interfaces

We validate the packet transmission; enhance the UDP or TCP applications.

Example: Sending UDP Traffic Between Nodes

#include “ns3/udp-client-server-helper.h”

uint16_t port = 8080;

UdpServerHelper server(port);

ApplicationContainer serverApp = server.Install(clients.Get(1));

serverApp.Start(Seconds(1.0));

serverApp.Stop(Seconds(10.0));

UdpClientHelper client(Ipv4Address(“10.1.2.2”), port);

client.SetAttribute(“MaxPackets”, UintegerValue(50));

client.SetAttribute(“Interval”, TimeValue(Seconds(0.1)));

client.SetAttribute(“PacketSize”, UintegerValue(1024));

ApplicationContainer clientApp = client.Install(clients.Get(0));

clientApp.Start(Seconds(2.0));

clientApp.Stop(Seconds(10.0));

✅ This simulates:

  • Client forwarding the UDP packets to server by routers.
  1. Implementing QoS and Load Balancing

We improve the routing performance and enlarge the congestion control.

Example: Applying QoS to Routing Interfaces

#include “ns3/traffic-control-helper.h”

TrafficControlHelper tc;

tc.SetRootQueueDisc(“ns3::FqCoDelQueueDisc”); // Fair Queueing for better QoS

tc.Install(routerDevices1);

tc.Install(routerDevices2);

✅ Benefits:

  • Fair queueing decreases the latency for complex applications.
  • Handle the congestion on routing interfaces through dynamically.
  1. Performance Analysis (Throughput, Delay, Packet Loss)

Flow Monitor used to calculate the routing effectiveness.

Example: Monitoring Routing Performance

#include “ns3/flow-monitor-helper.h”

Ptr<FlowMonitor> monitor;

FlowMonitorHelper flowHelper;

monitor = flowHelper.InstallAll();

Simulator::Run();

monitor->SerializeToXmlFile(“routing-flow.xml”, true, true);

Simulator::Destroy();

✅ Outputs: routing-flow.xml
Use tools like Wireshark to analyze network performance.

Advanced Routing Interface Research Topics

  1. Hybrid Routing Interface Protocols → Associate the OSPF, BGP, and SDN-based on routing.
    2. AI-Based Routing Optimization → machine learning used for route selection.
    3. Security in Routing Interfaces → Execute the firewalls and intrusion detection.
    4. QoS-Based Routing Interface Selection → choose the dynamic for VoIP, video streaming, etc.
    5. Cloud-Enabled Routing Interfaces → boost the data center connectivity.

Summary: Developing Routing Interface Protocols in NS3

✔ Step 1: Install and download the tool NS3 and necessary components.

✔ Step 2: Create a multi-interface topology

✔ Step 3: We apply the execution for routing protocols such as OSPF, BGP, RIP, AODV, etc.

✔ Step 4: For replicate a process in network traffic (TCP/UDP)

✔ Step 5: We enhance the routing by QoS and Traffic Control

✔ Step 6: We estimate the network performance of parameter metrices such as Throughput, Delay, Packet Loss, etc.

 

These project ideas concentrate on simulating and discovering Routing Interface Protocols in network environments and related its performance with Routing Interface Protocols using ns3. Additional specific details regarding the Routing Interface Protocols will be provided according to your needs.