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5 CONCLUSION
In this thesis work the study on hierarchical network design approach was carried
out. Hierarchical design allows separating levels and provides better
management and scalability opportunities. The final design plan of the factory’s
new plant network was built following the three-layer hierarchical design model.
The necessary technologies and protocols were investigated and sample
configurations that are needed to be performed were listed. Some of them were
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tested using the equipment in Virtual Laboratory, some of them were tested using
Cisco PacketTracer.
The design and configuration of a big enterprise network is a time-demanding,
careful process and every little detail was hard to cover in this work. I prepared
sample configurations, but it is obvious that in a scale of such a big network there
are a lot of things to consider and more technologies must be implemented. I
think that there are important issues that need to be reconsidered before
implementing the network in the real life. Following prepared configurations, the
network can be set up and running, but to be reliable in a production, future
developments and improvements are needed. The most important thing to re-
consider is that DSW-RING1 switch is a single point of failure for the entire
network. I recommend adding redundancy at this point. There is also a need to
establish security policy and configure devices and implement stronger security
at every layer of the network according to it.
By the end of this work, I gained important experience and structured information,
that I had in mind as separate theoretical pieces, together and practiced it in the
test environment. For me, it was challenging task, because I needed to see the
whole picture and understand from which end to start.
57
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