HOW TO RUN OPNET TCP API V3.H PACKAGES IN OPNET

To import  Tcp_api_v3.h packages in opnet  we have popped out for you to notify the steps that are required .  The Tcp_api_v3 Header serves as an essential component within OPNET Modeler, specifically crafted to deliver application programming interfaces (APIs) for the implementation and management of Transmission Control Protocol (TCP) functionalities. This header encompasses a diverse array of functions and structures that facilitate intricate TCP simulations, accommodating various TCP operations and behaviors. It includes functionalities for establishing, maintaining, and terminating TCP connections, which involve the management of the TCP three-way handshake and connection termination processes. Additionally, it provides APIs for the transmission and reception of data over TCP connections, ensuring both reliable data transfer and effective flow control mechanisms. The header also supports the creation, transmission, and processing of TCP segments, addressing segmentation and reassembly tasks. Furthermore, it defines specific error codes and handling procedures pertinent to TCP operations, thereby enhancing robustness and debugging capabilities. The Tcp_api_v3 Header incorporates support for multiple TCP congestion control algorithms, including slow start, congestion avoidance, and fast recovery. It also offers structures and functions for managing the state of TCP connections, implementing state machines for various TCP states. Lastly, it provides tools for the collection and analysis of TCP performance metrics, such as throughput, round-trip time (RTT), and retransmission rates.

PRE-REQUISITES:

  1. Fresh installation of Windows Vista OS:

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Fresh installation of Windows Vista OS

2.OPNET Modeler 14.5 Installation:

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OPNET Modeler 14.5 Installation

HEADER FILE VERIFICATION:

  1. Locate to the OPNET Example folder:

We need to locate the OPNET Example Folder by passing the following path shown in File Explorer, you can see the Example file utilized here.

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Locate to the Opnet Example folder

2.Open any Project file in the folder:

Next we need to Open the .prj (OPNET Project File) file by double-clicking or Right click the file and Click OPNET 14.5 in the OPNET folder.

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Open any Project file in the folder

Here we can see the Topology from the Example File.

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Open any Project file in the folder

3.Importing Tcp_api_v3.h:

Here, we imported the Tcp_api_v3.h header file code, which directly referenced the Opnet class and defined in the Highlighted Line, which used to reference a TCP Inter-Process Communication Interface (ICI) structure. This code line, which is internally accessible Tcp_api_v3.h, is highlighted here. By clicking the nodes that are indicated by rounds as meant to be clicked instances, we will see the class file utilized in OPNET.

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Importing Tcp_api_v3.h

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Importing Tcp_api_v3.h

Here we will show the header file by opening “C:\Program Files\OPNET\14.5.A\models\std\include\Tcp_api_v3.h” file to show the class or function imported from the Tcp_api_v3.h in the example code. We highlighted lines that eventually Included in the Tcp_api_v3.h, which is previously Highlighted code line in the script internally relies on using to reference a TCP Inter-Process Communication Interface (ICI) structure.

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Importing Tcp_api_v3.h

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Importing Tcp_api_v3.h

4.Executing the Example Program for Tcp_api_v3 Header:

Then we need to run the Example program for Tcp_api_v3 Header to view output of the program. By clicking the DES => Configure the Discrete Event Simulation Button.

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Here we need to click the Run button, it will begin with Configuration and Execute the Program.

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Executing the Example Program for Tcp_api_v3 Header

Here we shown the output of the Configuration and Execution of the example program.

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Executing the Example Program for Tcp_api_v3 Header

We need to click the Hovered Place to view Result Graph.

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Executing the Example Program for Tcp_api_v3 Header

Here we demonstrated the output Result Graphs of the example program by using Tcp_api_v3.h.

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Executing the Example Program for Tcp_api_v3 Header

In the OPNET Modeler 14.5 Simulation Example Program, the Tcp_api_v3.h Header file is successfully imported.