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You have been hired by a reputable mining company in Ghana to design and implement their enterprise network infrastructure. The company s operation centres are

You have been hired by a reputable mining company in Ghana to design and implement their enterprise network infrastructure. The companys operation centres are located at Takwa Nsuta, Takoradi port and Accra. The mining activities is centred at Takwa Nsuta as the key operation centre with work force number up to 5000. The two branch offices in Accra and Takoradi Port houses only few administrative staff numbering not more than 20 each.
The Takwa Nsuta site contains 4 buildings; Administration Block, Mining Engineering Block, Environmental Block and Workshop Block. The Network Operations Centre and the Server Farm are located at the basement of the Administration Block. The distances between the Admin Block and the other buildings have been found to be not less 400meters. You have been inform by the IT Manager that the equipment listed below have been procured for the project. For a start, each block at Nsuta will house 3 daisy-chained 2960 series switches. You have also been provided with the DLCI numbers and IP address received from the ISP for site-to-site interconnections over frame-relay WAN switching technology.
The LANs at Accra and Takoradi Port branches are not to be segmented since the number of users are not more than 20. Each of the sites will have 1 of the 2960 series switches.
Table 1. Network equipment provided
Device Model Qty. Remarks
Router ISR43213 To be used for inter-branch connectivity over frame-relay
Multilayer Switch 365024PS 1 Core switch to be installed at Nsuta NOC to provide inter-vlan routing among the configured VLANs
L2 Switch 2960100
DHCP Server Server 1 To provide DHCP services at Nsuta LAN
Cable Fibre 10 Boxes To be used for connect inter-block backbone connections
Cable UTP Cat610 Boxes To be used as access cables for users
Cable Serial Cables 10 Boxes To be used for WAN connection over frame-relay
Table 2. ISP Information for WAN access
Location DLCI
Takwa Nsuta, 100,101
Takoradi port 200,201
Accra 300,301
Network Access Address 10.2.2.0/24
Table 3. VLANs to be implemented at Takwa-Nsuta
Vlan Number Vlan Name Expected No. of computers to be deployed. Access Ports for each switch
100 Mining Engineers 8,100 First 10
200 Administrative Staff 4,050 Next 5
300 Environmental Scientist 2,100 Next 5
400 Biometric Time and Attendance Machine 16,009 Next 2
500 Managers 1,000 Next 1
600 Wifi Users 500 Next 1
a) Use cisco packet tracer 7.2.2 to design and implement the network physical topology connecting all the branches together over a frame-relay technology [Note: Using the appropriate cable type for each connection will attract more marks].
[10 Mark]
b) You are required to secure all the Routers and Switches and allow SSH remote log on to them for management. [Note: all passwords used in the network should be cisco, and use the network address 192.168.20.0/24 to assign IP addresses to switches].
[8 Marks]
c) Use the information provided in Table 2 to configure serial links over frame-relay. Use sub-interfaces to avoid split-horizon problem. Use VLSM to efficiently distribute the network address provided.
[10 Marks]
d) The multilayer switch at Nsuta should be configured as the VTP server of the switched network with VLANs indicated in the Table 3. Use the VTP information (VTP domain name = cisco and VTP password = cisco) to complete the configuration of your all the switches at Nsuta. Configure the access ports for each switch as indicated Table 3.
[10 Marks]
e) Configure the multilayer switch to allow inter-vlan routing among the VLANs.
[6 Marks]
f) Define DHCP pools for all the VLANs in the DHCP server to allow automatic IP address

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