To simulate a Hierarchical Star Topology using OPNET have includes making a multi-layered star network in which each star network links to a higher-level central hub, it frequently mentioned to like a core switch or router. This topology is generally utilized within in large LANs, campus networks, and enterprise data centers in which the hierarchical structure allows well management and scalability. Below is a structured procedure to simulate a Hierarchical Star Topology project in OPNET:
Steps to Simulate Hierarchical Star Topology Projects in OPNET
Step 1: Set Up the OPNET Environment
- Open OPNET Modeler: Make a new project in OPNET Modeler.
- Create a New Network: Choose New Network, then name it to the project, and select a Wired LAN situation like the starting point that is appropriate for hierarchical structures.
Step 2: Configure the First-Level Star Networks
- Place First-Level Network Devices:
- Choose switches or hubs like the central devices for each first-level star network in the object palette.
- Append workstations, servers, or other devices, which will associate to each switch in the star networks.
- Arrange Nodes in Star Layouts:
- Locate a switch within the center of each first-level star and also place workstations and servers over it.
- Link each device to their corresponding switch, to make independent star networks utilizing point-to-point links.
- Set Link Parameters for First-Level Stars:
- For each link, we can set up the data rate, latency, and error rate. Because these are first-level star networks, a data rate of 1 Gbps or higher is suggested managing local traffic in each cluster.
Step 3: Configure the Second-Level Star Network (Core Network)
- Place a Central Core Switch or Router:
- For the second-level star, append a core switch or router, which will function like the hub. This device associates every first-level star networks together, to make the hierarchical structure.
- Connect Each First-Level Switch to the Core Switch:
- Link each first-level switch to the core switch, to make a star-of-stars structure successfully utilizing high-capacity point-to-point links.
- Configure a higher data rate for these links such as 10 Gbps or higher to assist an inter-cluster interaction.
- Configure Link Parameters for the Second Level:
- Configure link parameters among first-level switches and the core switch like data rate, latency, and error rate. These links would have higher bandwidth from several first-level stars to manage the traffic.
Step 4: Define Applications and Traffic Profiles
- Configure Applications:
- Configure applications, which replicate network traffic like web browsing, file transfers, VoIP, email, and video streaming in the Application Config editor.
- Assign Traffic Profiles to Nodes:
- Allocate traffic profiles to certain nodes in each star network to utilize the Profile Config editor.
- Set up both intra-cluster traffic (traffic within each star network) and inter-cluster traffic (traffic among diverse star networks) to completely use the hierarchical structure.
Step 5: Configure and Run the Simulation
- Set Simulation Parameters:
- Configure the simulation time then set up other metrics such as granularity and data collection intervals in the Simulation tab.
- Select Performance Metrics:
- Select performance metrics related to hierarchical networks like throughput, latency, packet delivery ratio, link utilization, and switch buffer occupancy. These parameters will support to estimate the performance in each star network and over the hierarchical structure.
- Run the Simulation:
- Execute the simulation then for inter-cluster communication, monitor how traffic flows in each star network and via the core switch. The core switch performs like the central point for cross-cluster traffic in a Hierarchical Star topology.
Step 6: Analyze Results
- Review Performance Data:
- Analyse crucial parameters like latency, throughput, link utilization, and buffer occupancy utilizing OPNET’s analysis tools. Examine the performance in individual star networks and at the core switch detecting any bottlenecks or delays.
- Optimize Network Configuration:
- Modify settings like link capacities, switch buffer sizes, and routing protocols to enhance the network efficiency depends on the findings. If there is weighty load on the core switch then deliberate to maximize their capacity or data rate.
Overall the simulation will be successfully demonstrated for Hierarchical Star Topology with the help of OPNET tool that has contained brief procedures. If you did like to know more information we will offered it. We provide a simple step-by-step guide to help you simulate Hierarchical Star Topology Projects using OPNET. Our experts at phdprime.com can assist you in setting up configurations for big LANs, campus networks, and enterprise data centers.
