Publikace
Management of Network Devices from OPNET Modeler Simulation Environment
The Simple Network Management Protocol is the
main protocol for monitoring and configuring network devices,
but it is not the only way of utilizing this protocol. With the help
of this tool, additional information about network devices can be
obtained. This information can be used, for example, in the
Quality of Service support system that is described in this paper.
In order to evaluate this system we used the OPNET Modeler
simulation environment. The usage of simulation tools within the
development of modern network technologies and protocols is
very frequent. But sometimes the pure simulation environment is
not quite sufficient and we need to combine it with real systems.
Therefore we took advantage of one feature of OPNET Modeler
and created a simulation scenario that enables interaction of the
OPNET Modeler with real network components. For this purpose
we implemented the SNMP protocol into the OPNET Modeler
and used it for acquisition of management information stored in
the Management Information Base database at the network
device. The principles of the communication model developed,
including the description of separate components of the model,
are introduced in the following text.