Question

Computer dynamics is a microcomputer software development company that has a 300-computer network. The company is located in three adjacent five-story buildings in an office park with about 100 computers in each building. The LANs in each building are similar, but one building has the data center in the second floor. There are no other office locations. Please refer to the network architecture components in Figure 6-1 of the textbook, and identify the key network architecture components in the design of the enterprise network. Refer to Chapter 6 and discuss how you would go about designing the physical network. You may assume that the campus does not need WAN connectivity.

Dear All,

This week; you are going to Design a "Real World" scenario Network as specified above.

Please start with a blue print design using "Visio" software Try first to think about the "Hardware-Devices" such as Wired Switches, Routers, Cables and Wireless Access Points, Wireless Repeaters (Extenders). See and estimate the number of users for your network, and put no more than 15 users/Access points for the Wireless connection, and select the wired switches to have X number of ports so that the over-ll wired users would be efficiently covered.

Answer 1

Answer :

Solution for the given problem:

The LAN would typically be designed as a physical star topology connecting the computers on
each floor with UTP cabling to a switch. A wireless network is recommended in each building in
addition to the wired network. Based on the size of the buildings, number of users, and the fact
that a wired network is already in place, the company could get by with 802.11n access points on
odd numbered floors (3 per building). These would probably provide enough wireless access to
support the users.

The switch(es) on each floor would connect to the main switch on the first floor of each building,
which would then connect to a router in that building. The connections among the switches
would be fiber.

It is recommended to use multi-mode fiber optic cable to connect all three buildings to the
others. One of the three buildings would be designated as the main building, as it contains the
data center on the second floor. Each of the respective building LANs would connect into a
device like a data switch that had a fiber uplink port. At the main building, the other two
buildings would be terminated via the other end of the fiber into ports on the main campus data
switch.

Any needs for connectivity to the outside, for example the Internet, could be supported by
connecting the gateway router directly into a port on the main data switch. The router could
connect to a CSU which brought into the campus network a high-speed circuit. In this design
everyone on campus could have Internet connectivity and also connect to any server or printer
physically located at any of the other buildings.

The data center would contain the e-commerce edge. This would consist of at least the web
server that allows potential and existing customers to view their website.

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