OPNET Architecture

OPNET Modeler provides a wide-range environment that support modelling, simulating and performance evaluation of vast types of networks. OPNET Modeler package comprises several tools, each one focusing on specific aspects of the modelling task. These various tools fall into three categories:

1.      Model Specification and Modelling Communications with Packets.

2.      Data Collection and Simulation.

3.      Analysis.

OPNET consists of three major components, Network Editor, Node Editor and Process Editor.

 

1. Project Editor: used to build the topology of a network and provide the basic analysis capabilities and simulation. Project Editor represents the geographical objects of the simulation and it has the ability to manage all network nodes such as routers, workstations and links. 
2. Node Editor: used to specify the device models’ structure. These models can be used in the Network Editor as node objects. For instance, Node Editor can be used to construct a packet switch defining its interfaces, switching speed ad all aspects and attributes involved in designing the node. 
3. Process Editor: used to specify the behaviour of process model using C/C+ language. Process models can be instantiate in Node Editor as processes. Processes independently execute threads that perform general communication and data processes functions. The functions can be represented either in hardware and software.