Chezhymbayeva K.S., Utebayeba D.Z.
Almaty university of power engineering and telecommunications
SIMULATION OF CORPORATE NETWORK WITH THE SOFTWARE
PRODUCT OPNET MODELER 14.0
KEW WORDS:
SIMULATION, CORPORATE NETWORK, THE SOFTWARE PRODUCT OPNET, MODELING, TELECOMMUNICATION’S ENVIRONMENT.
The article is about simulation of the
corporate network, the network scale of the city (Metro Area Network, MAN) in
the software product OpNet
Modeler 14.0 and analysis of the results.
Corporate
networks are called enterprise networks. Network enterprise (corporate network)
brings together a large number of computers in all areas of the individual
enterprise. They can be difficult to relate and to cover the city, region or
even continent. The number of users and computers can be measured in the
thousands, and the number of servers - hundreds, the distance between the
networks of individual territories may be such that it becomes necessary to use
global connections. For connecting remote local area networks and individual computers
on a corporate network used a variety of means of telecommunications, including
telephone lines, radio, satellite communications. Corporate network can be
represented as "islands
of
LANs" floating in the telecommunications environment.[1]
This article
describes a software system simulation(OpNet Modeler 14.0), which is focused on the
communication network and allows the model without programming.
The program OpNet Modeler 14.0 is a set of tools for creating,
modeling and learning networks.
It allows analyzing the impact of applications such as client-server and new
technologies on the network; hierarchical network model, multiprotocol LANs and
WANs based on routing algorithms; to evaluate and analyze the performance of
the simulated networks. Also with this package we can check the communication
protocol analysis of interactions of protocol optimization and network
planning.[2]
We simulated corporate network
using the OpNet Modeler 14.0. Access of users to the core
network is carried through switches, organizing local networks. The basic
technology for the construction of a corporate network is Ethernet [Figure 1].
Figure 1 – Sample
of the corporate network
On the basis of collected data
can be seen the presence of congested parts of the network, which are a
critical link in the functioning of the entire network segment.
After the end of the simulation
we got the following characteristics:
Figure 1 – The
communication protocol analysis of interactions of protocol optimization and
network planning
In the figure 2 are shown a
graph download link using a routing protocol and communication bandwidth.
The program OpNet Modeler allows to analyze existing and
planned networks. When using OpNet Modeler, it is no need for time-consuming of calculations of the search of network weaknesses. Any network situation,
expansion or transformation of the network can first be simulate and evaluate
the consequences and only then start construction works and purchase of
equipment.
The used literature:
1.
http://skylink.ru/spb/corporate/services