To simulate a Bus Topology using OPNET that requires to contain making a network in which every nodes or devices associate to a single central interaction line, or “bus,” and information moves via this but attaining diverse devices. Signals are transmitted to every device, however simply the proposed recipient processes the information in a bus topology. Even though OPNET does not need a direct “bus” setting, we can be simulated this topology by means of setting up a shared medium network that normally to utilize Ethernet or coaxial cables like the primary interaction medium.
Following is a stepwise instruction to simulate a bus topology in OPNET:
Steps to Simulate Bus Topology in OPNET
- Set Up OPNET Environment
- To make a new project in OPNET Modeler and name it that related like “Bus Topology Simulation.”
- Set up the project including a shared medium network simulating the unique bus structure.
- Design the Bus Topology
- Bus Medium: Denote the central bus line utilizing an Ethernet or coaxial cable. This shared medium will permit numerous nodes associating and interacting.
- Nodes (Devices): Insert several workstations, servers, or client devices to the bus. These devices will perform like endpoints, which send and obtain information through the shared bus.
- Configure the Shared Medium (Bus)
- In OPNET, for the bus we can replicate the shared interaction medium utilizing an Ethernet link. Set up the following:
- Link Type: Choose 10Base-2 (Thin Ethernet) or another shared Ethernet link type if we require denoting a traditional bus topology, which utilizes coaxial cables.
- Connection Mode: Link each node to the similar Ethernet bus link, to permit them to share the medium. This configuration will denote a logical bus in which every node transmit and receive signals across the similar link.
- Add and Configure Nodes
- Append client devices, workstations, or servers to the network, to associate each one to the shared Ethernet bus.
- Set up each device to perform like either a sender or receiver replicating data transfer through the shared medium. Describe the kind of traffic in Node Editor for each device:
- HTTP or FTP Servers: For file sharing or web access, we need to configure servers.
- Clients: Set up clients making HTTP, FTP, or other application-specific requests to replicate the typical interaction.
- Configure Applications and Profiles
- Go to the Application Configuration tool, describe the kinds of applications for each node will utilize:
- File Transfer Protocol (FTP) for file sharing through the bus.
- HTTP for web-based traffic.
- VoIP or Email for real-time or periodic communication.
- Allocate applications to certain nodes, which denoting the kind and frequency of traffic each node will be made utilizing Profile Configuration. It permits managing which nodes broadcast or receive information and at what intervals.
- Simulate Collision and Access Control
- As a bus topology normally looks collisions once several nodes try to transmit concurrently information, allow CSMA/CD (Carrier Sense Multiple Access with Collision Detection) at the shared Ethernet link:
- Allow CSMA/CD mimicking collision detection in the Ethernet Link Properties. It will permit the nodes identifying if the bus is engaged and move away if alternative device is previously sending, replicating how Ethernet manages the shared medium access.
- Configure Backoff Time and Transmission Delay values mimicking realistic bus congestion once several devices try to concurrently interact.
- Enable Data Collection for Monitoring
- Set up data collection at the network observing the performance and then estimate the bus topology’ influence:
- Throughput: Monitor data throughput at the shared Ethernet link observing how much information is being sent through the bus.
- Collision Count: Observe the collisions at the bus knowing how frequently devices try to transmit information at the similar time, directing to retransmissions.
- Delay and Response Times: We can estimate the network delay and response times, particularly in the course of high traffic, examining the impact of shared medium congestion.
- Utilization: Monitor the utilization of the shared bus link to see how effectively it is utilized in diverse traffic conditions.
- Run the Simulation
- Execute the replication, to permit devices sending and obtaining information across the shared bus in OPNET.
- Monitor the network’s behaviour, particularly the rate of collisions, data delays, and throughput variations according to the node activity.
- Analyze Results
- Consider the outcomes of the bus topology replication utilizing OPNET’s analysis tools:
- Collision Rate: Confirm the percentage of collisions at the bus. High collision rates need to show, which the bus is oversaturated or that also several devices are attempting to concurrently send.
- Throughput and Utilization: Examine the throughput and link utilization data finding how much bandwidth the bus can be managed in diverse loads.
- Latency and Response Times: Estimate the latency knowing how the bus topology influences delay-sensitive applications. Higher latency probably happens when several devices compete to the shared bus for access.
- Experiment with Different Configurations
- Customize the replication metrics to experiment diverse sets up and situations:
- Increase the Number of Nodes: Insert additional nodes to the bus monitoring how increased traffic impacts the collision rates and overall performance.
- Higher Traffic Load: Maximize the traffic load at certain devices analysing the capacity of bus to manage the heavy usage.
- Varying Application Types: Observe how they execute within a shared medium environment utilizing diverse application types such as real-time vs. periodic information.
We had completely offered the detailed demonstration of the simulation of Bus Topology utilising the OPNET tool and their simulation set up and analysis their outcomes. If you have any query on this topic, we will clear it.Only experienced professionals can manage your project with expertise. Stay connected with us to receive the finest Bus Topology Projects utilizing OPNET simulation, customized to meet your research requirements. We specialize in using Ethernet or coaxial cables as the primary communication medium, tailored to your specific needs.
