How to Implement IEEE 802.1Q (VLAN Tagging) in OMNeT++

To implement the IEEE 802.1Q (VLAN Tagging) in OMNeT++ we requires an INET framework that helps VLAN tagging. Follow us to get more simulation results for you projects from omnet-manual.com. Below are the steps to set up and simulate a VLAN-tagged network using OMNeT++ and INET.

Step-by-Step Implementation:

1. Install OMNeT++ and INET Framework

Make sure to install both the OMNeT++ and the INET Framework on your computer as per your operating system.

2. Create a New OMNeT++ Project

1. Open OMNeT++ IDE: Start the OMNeT++ IDE.
2. Create a New Project: Go to File -> New -> OMNeT++ Project. Name the project (e.g., VLANSimulation).

3. Import INET into Your Project

1. Import INET: Right-click on the project in the Project Explorer, select Properties. Go to Project References and check the INET project.
2. Copy INET Examples: Copy example configurations from the INET framework to the project for reference.

4. Define the Network Topology

State network topology that has VLAN tagging by creating a new NED file.

Example: VLAN Network Topology (VLANNetwork.ned)

package vlan;

import inet.node.inet.StandardHost;

import inet.node.ethernet.EthernetSwitch;

import inet.node.ethernet.EthernetHost;

network VLANNetwork

{

parameters:

@display(“bgb=600,400”);

submodules:

host1: EthernetHost {

@display(“p=100,300”);

}

host2: EthernetHost {

@display(“p=300,300”);

}

host3: EthernetHost {

@display(“p=500,300”);

}

switch1: EthernetSwitch {

@display(“p=200,200”);

}

switch2: EthernetSwitch {

@display(“p=400,200”);

}

connections:

host1.ethg++ <–> Eth10M <–> switch1.ethg++;

host2.ethg++ <–> Eth10M <–> switch1.ethg++;

switch1.ethg++ <–> Eth10M <–> switch2.ethg++;

host3.ethg++ <–> Eth10M <–> switch2.ethg++;

}

In this sample:

• host1, host2, and host3 are Ethernet hosts.
• switch1 and switch2 are Ethernet switches.
• The Eth10M channel models a 10 Mbps Ethernet link.

5. Configure VLANs

Alter the .ini file to configure VLAN tagging.

Example: Configuration File (omnetpp.ini)

network = vlan.VLANNetwork

sim-time-limit = 100s

# Visualization

*.visualizer.canvasVisualizer.displayBackground = true

*.visualizer.canvasVisualizer.displayGrid = true

# VLAN Configuration

*.switch1.vlanTagging = true

*.switch1.vlanTable = xmldoc(“vlan1.xml”)

*.switch2.vlanTagging = true

*.switch2.vlanTable = xmldoc(“vlan2.xml”)

# Host Configuration

*.host*.numEthInterfaces = 1

# Ethernet Switch Configuration

*.switch*.numPorts = 3

6. Create VLAN Configuration Files

Create XML files to define the VLAN configuration for all switch.

Example: VLAN Configuration File for switch1 (vlan1.xml)

<vlanTable>

<vlan>

<id>10</id>

<ports>0,1</ports>

</vlan>

<vlan>

<id>20</id>

<ports>2</ports>

</vlan>

</vlanTable>

Example: VLAN Configuration File for switch2 (vlan2.xml)

<vlanTable>

<vlan>

<id>10</id>

<ports>0</ports>

</vlan>

<vlan>

<id>20</id>

<ports>1,2</ports>

</vlan>

</vlanTable>

7. Run the Simulation

1. Build the Project: Right-click on project and select Build Project.
2. Run the Simulation: Start the simulation by clicking on the green play button in the OMNeT++ IDE.

According to this demonstration, you can completely understand the details on how to set up the basic simulation network and how to execute the IEEE 802.1Q (VLAN Tagging) in OMNeT++. We will also offer to help you anything which is related to this topic.