To simulate a Dual Ring topology using OPNET which comprises to make a network including two concentric ring structures, to offer redundancy and fault tolerance. Dual Ring topologies are frequently utilized in metropolitan area networks (MANs) and networks requiring high availability, such as FDDI (Fiber Distributed Data Interface) and SONET (Synchronous Optical Network). Given below is a step-by-step procedure for configuring and replicating a Dual Ring topology in OPNET:
Steps to Simulate Dual Ring 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 the project, and for ring networks, select a Wired LAN or Custom situation type.
Step 2: Configure the Dual Ring Topology
- Select Nodes for the Rings:
- Choose devices like routers, switches, or workstations, which will make the dual rings in the object palette. For instance, in FDDI, we should utilize FDDI-compliant nodes.
- Arrange Nodes in a Dual Ring Structure:
- Locate the nodes within two concentric circles (inner and outer rings) specifying the dual-ring structure.
- Data moves in one direction (typically clockwise), whereas in the secondary ring (outer ring), data travels within the reverse direction (counterclockwise) for redundancy in a primary ring (inner ring).
- Connect Devices with Dual Ring Links:
- Utilize unidirectional links, associate each node within the main ring to their neighbouring node. For the secondary ring, do again this in the opposite direction.
- Make sure each node is linked to both rings they are one link on the primary ring and another one link at the secondary ring permitting data flow within both directions.
Step 3: Configure Link and Device Parameters
- Set Link Parameters:
- Configure link parameters such as data rate, latency, and error rate at each link. The data rate will rely on the technology like 100 Mbps for FDDI or higher speeds for SONET.
- Make sure that the links are configuring to unidirectional sustaining the one-way traffic flow at each ring.
- Configure Node Attributes:
- Allow dual ring protocols at each node if available such as protocols like FDDI or SONET, which handle dual rings.
- Indicate failover behavior to facilitate if one ring fails then traffic can change to the secondary ring automatically.
Step 4: Define Applications and Traffic Profiles
- Configure Network Applications:
- Configure applications, which replicate normal high-availability traffic, like file transfers, video streaming, VoIP, or real-time database applications in the Application Config editor.
- Assign Traffic Profiles to Nodes:
- Allocate applications to nodes, to make data flows around the ring utilizing the Profile Config editor. We can set up traffic patterns to flow within one direction and then experiment failover in the opposite direction.
Step 5: Configure Failover Mechanism
- Simulate Ring Failure and Recovery:
- If the main ring fails then the secondary ring performs like a backup in dual-ring networks. Set up failover settings to reroute traffic automatically to the secondary ring in the event of a fault within the primary ring.
- We can replicate a link or node failure by inactivating it temporarily and to monitor how the traffic changes to the secondary ring.
Step 6: Configure and Run the Simulation
- Set Simulation Parameters:
- Configure the simulation time, data collection granularity, and other related parameters in the Simulation tab.
- Select Performance Metrics:
- Select performance parameters related to dual-ring performance like throughput, latency, packet delivery ratio, failover time, and link utilization. These metrics will support to estimate the redundancy and resilience of the dual-ring topology.
- Run the Simulation:
- Execute the simulation then monitor data transmission at the main ring. If we set up a failover then monitor how traffic is switched to the secondary ring if the primary ring meets an issue.
Step 7: Analyze Results
- Review Collected Data:
- Measure crucial parameters such as failover time, latency, throughput, and packet loss to utilize OPNET’s analysis tools during both typical operation and failover situations.
- Identify and Optimize Performance:
- During failover, confirm for any bottlenecks or delays. We want to enhance the performance parameters such as data rates, routing protocol configurations, or link reliability to enhance the performance.
We had successfully simulated the Dual Ring Topology projects in the OPNET tool that were executed with the help of stepwise simulation method. If you have any query regarding this simulation we will help to clarify it.
Our technical team is prepared to support you with applications like FDDI (Fiber Distributed Data Interface) and SONET (Synchronous Optical Network). Rely on our experts to design Dual Ring topology utilizing the OPNET tool. We are dedicated to offering you tailored ideas and topics. Our team possesses the essential tools and resources to guarantee the successful execution of your project. Do not hesitate to contact us at any time for the best possible outcomes.
