Company Description: Acme Manufacturing Company is a small manufacturing company that makes widgets for all known industries. It purchases designs from other companies of products already in production and then takes over their manufacturing. Acme has three facilities. They are:
1) Company Headquarters: Located in Columbia, MO, this facility has 10 individuals in Corporate Management, 15 in Purchasing, Accounting, and Marketing, and 30 sales personnel. They rent two floors of a building that is 100ft x 100ft. Work takes place for 10 hours a day in one shift scheduled for 5 days a week. Of course, some personnel work longer hours and work can take place any day during the week.
2) Distribution: A 1000ft x 500ft facility consisting of a single floor is located in Kansas City. Two shifts work for 16 hours a day, 6 days per week consisting of a total of 200 workers. Most of the area is taken up by shelved product awaiting shipment. Computer use by personnel typically takes place on breaks, although some shipping people and supervisors will use the computers in the course of their normal job functions.
3) Manufacturing: 150 workers are located in West Plains, MO at a plant that is 1000ft x 2000ft. Working two shifts a day, 16 hours a day, and 6 days a week, there are 10 managers and 10 shipping personnel at the facility. Computers are used on the manufacturing machines, with machines changing their basic programming about 3 times per day. Most manufacturing personnel do not have access to the computers outside of their use for producing product.
You can assume the following for the facilities:
Facility Average a Average L Average Web Cache Rate
Columbia, MO 1000/s 3M .6
Kansas City, MO 20k/s 1.5M .2
West Plains, MO 30k/s 500 .35
In general:
p(packet_loss) = 5 x 10-12
rwireless= 600Mb/s
rwire= 1.3Mb/s
Estimated delay time for getting information from the network is 1.2s
Average caching time, if used, is 5ms
Cost per foot of installed media is $8
Cost of Cat 5 cable is $2/ft
Cost of Optical fiber is $9/ft
Cost of the average router is $200
Cost of an average switch is $400
Cost of an average web cache is $15,000
Cost of a Smart router for star and star wired ring configurations is $12,500
Cost of ring software is $300
Cost of an optical end point for nodes is $100 (one used for every port)
Maximum length of transmission possible for any media is 80m
Human costs are $10/m of media installed and $300 per switch installed
Instructions:You have been selected to design the networking for connecting the employees and facilities of Acme Manufacturing Company and transferring data as needed for the company. Your company has been given the following guidance for the job:
1) The priorities for the new network are:
a) Facilitate business data between facilities,
b) Allow for ease of connection for sales and marketing,
c) Fast response to and from the internet,
d) A packet switching network that will easily interface with the Internet to keep costs low and interoperability high,
e) Minimize the delay of data in the network, and
f) Maximize network utilization.
2) Your budget is NOT TO EXCEED $600,000 in equipment and materials, and
3) You do not have to use the same network topology for the entire network grouping. Each location, and different areas at the same location, may have different topologies.
Your report to Acme will contain the following:
1) An analysis of the networking needs of the company. This will include
a) The needs of each facility,
b) Security issues for the facilities and networks,
c) Traffic intensity at routers/switches,
d) Summary of reliability needs for the facility and the network, and
e) Your reasoning for designing the network the way you did.
2) A diagram that shows the topology diagram of both the individual facility and the overall network, indicating what basic topologies are used.
3) Numbers and locations of switches, including identifying specialized switches for high reliability topologies,
4) The cost of the equipment and materials used, along with manpower costs,
5) An itemized list of parts and materials (Bill of Materials) used in your network design,
6) Estimates of network utilization for each individual network in the design,
7) Estimates of access speed for web based requests from each network, and
8) Locations of anticipated delay sources and congestion in the constituent networks.