Network design scenario- URGENT
I will be extremely gratefull if someone can solve this. I need it in 2 days .
International software company that is developing, documenting and testing all kinds of software applications.
The company is on a whole floor in a building, but soon it is moving to new location.
The company has 30-40 employees which can be categorised in this groups:
Group A: Has 7 employees (Angelina, Peter, John, George, Anna, Monika and Igor) and is primary developing and testing 3D multiplayer games.
The members develop the games or test them by playing on the network.Everyone of them is using internet tome to time. Igor, who is a manager
Of the group A, does not develop or test the software, he's just monitoring the logs for the projects which are located on a server dedicated to this group.
Every chAnge in the code or documentation is written in this logs
Group B: Has 6 employees (Kristina, Michael, Nick, Anton, Kiro, Pero) is working on development of software that detects passive programs
In the network(eg. Sniffers). The company is planing to employ 2-3 extra members in this group.
Group C: has 4 employees (Pit, Elena, Kyle and Mito) and is developing a variation of File Transfer Protocol(FTP). Mito is a manager on this group
Group D: has 4 employees (Maria, Beth, Jovan and Vladimir) is responsible for administration in the company. Employees work with standard business
Applications which make changes in the company database on a separate server. Also, they use internet to search for projects for which the company can bid.
Beth is a group manager
Group E:has 4 employees Victor, Magdalena, Tina and Zoran,) and is responsible for development and maintenance of the company website. They also download software from internet and produce CD's
Iva, Brad and Jonathan are administrators of the computer network and are responsible for it to work efficiently
Stefan is a general manager of the company. He uses software for video conferencing to communicate with the managers and administrators
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Additional Info::
- Every group has a laser printer
- Managers have color ink-jet printer
- All employees have mails on the company mail server
- All employees have to authentificate to get access rights
- All managers and administrators have access to the company database
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The new building the company is moving to has:
1 Floor:
-one big office that fits 12 workstations(12 computers and 12 employees)
-big office that fits 10 workstations
-office that fits 5 workstations
-Little room of 4 square meters
2 Floor:
-office that fits 8 workstations
-office that fits 3 workstations
-office that fits 2 workstations
-Little room of 6 square meters
Basement:
Two little rooms, each 4 square meters
The company is making new network in the new building. They are interested to make the new network expandable, to be efficient, to be secure.
The price is a very inportant factor also, so it should have optimal price-performance ratio (unnesesary expensive equipment which is not going to be fully used should not be considered)
On this picture is the network design in the old building. They use four 10Base2 segments, each 150m far from the next one and two 10BaseT segments.
http://i43.tinypic.com/nq87k.jpg
1. Almost all users have complained that the network is slow. What could be the problem? Do not consider segment G , which was installed later.
2. In 10Base segment A, the second computer(Client B) could not connect and communicate with any other computer. All other computers are communicating normally with others. What could be the reason for this problem.http://i42.tinypic.com/5d7bkw.jpg
3. Segment G has been installed later to enable communication to new employees. But with the installation of this segment new problems occurred. Stations from segments F and D could not communicate with stations from segment G and viceversa. What could be the reasons for this problem?
4. Suggest new network design for the new network in the new building. Draw a network map which will show the location of every employee and group. Identificate the needed servers from the description and show their location, and the location of all interconnection network devices and connections. Describe the design , your decisions and explain how the problems which are described in (1,2,3) are eliminated with the design you suggest.
