QUESTION 3 (15 MARKS) In the network below In a switched LAN, the following two switches sw1 and sw2 are directly connected using their g0 0 interfaces PC1 and PC3 are connected to sw1s fa0 2 and fa0 3 interfaces PC2 and PC4 are connected to sw2s fa0 2 and fa0 3 interfaces PC1 and PC2 are configured to be in vlan10 (Computing Department) while PC3 and PC4 are configured to be in vlan 20 (Engineering Department) Vlan 10 is mapped to subnet id 192 168 1 64 while vlan 20 is mapped to subnet id 192 168 1 128 Describe conceptually (not by IOS commands) all the configurations required on individual (i) hosts and (ii) switches so as to enable intra vlan communication Explain 5 Marks Switch s3 is added to the network in (a) above and connected to both sw1 and sw2 Switch sw3 connects to sw1s g0 1 interface using its g0 1 interface Switch sw3 connects to sw2s fa0 1 interface using its fa0 1 interface Assume we have the following Bridge IDs on the three switches sw1 priority 32679, system id extension 1, Lowest mac address 0003 4368 7908 sw2 priority 32679, system id extension 1, Lowest mac address 0002 4368 7908 sw3 priority 32679, system id extension 1, Lowest mac address 0001 4368 7908 The cost of a link is based on the speed of the port as follows 10 Gig 2 1 Gig 4 100 Mb 19 10 Mb 100 Which switch will become the (i) root bridge Explain Which switch interfaces will become (ii) root ports (ii) designated ports and (iv)non designated ports Explain 6 Marks To allow inter vlan communication, router R1 is added to the network in (b) above with its fa0 0 interface connected to sw3s fa0 0 interface Inter vlan communication is based on router on a stick design Describe conceptually (not by IOS commands) all the additional configurations required on individual (i) hosts (ii) switches and (iii) router R1 to enable inter vlan communication

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QUESTION 3 (15 MARKS) In the network below In a switched LAN, the following two switches sw1 and sw2 are directly connected using their g0/0

QUESTION 3 (15 MARKS)

In the network below

In a switched LAN, the following two switches sw1 and sw2 are directly connected using their g0/0 interfaces. PC1 and PC3 are connected to sw1s fa0/2 and fa0/3 interfaces. PC2 and PC4 are connected to sw2s fa0/2 and fa0/3 interfaces. PC1 and PC2 are configured to be in vlan10 (Computing Department) while PC3 and PC4 are configured to be in vlan 20 (Engineering Department). Vlan 10 is mapped to subnet id 192.168.1.64 while vlan 20 is mapped to subnet id 192.168.1.128. Describe conceptually (not by IOS commands) all the configurations required on individual (i) hosts and (ii) switches so as to enable intra-vlan communication. Explain! [5 Marks]
Switch s3 is added to the network in (a) above and connected to both sw1 and sw2. Switch sw3 connects to sw1s g0/1 interface using its g0/1 interface. Switch sw3 connects to sw2s fa0/1 interface using its fa0/1 interface. Assume we have the following Bridge IDs on the three switches: sw1: priority: = 32679, system id extension = 1, Lowest mac address: = 0003 4368 7908; sw2: priority: = 32679, system id extension = 1, Lowest mac address: = 0002 4368 7908; sw3: priority: = 32679, system id extension = 1, Lowest mac address: 0001 4368 7908. The cost of a link is based on the speed of the port as follows: 10 Gig = 2; 1 Gig = 4; 100 Mb = 19; 10 Mb = 100. Which switch will become the (i) root bridge?Explain! Which switch interfaces will become (ii) root ports (ii) designated ports and (iv)non designated ports. Explain! [6 Marks]

To allow inter vlan communication, router R1 is added to the network in (b) above with its fa0/0 interface connected to sw3s fa0/0 interface. Inter vlan communication is based on router on a stick design. Describe conceptually (not by IOS commands) all the additional configurations required on individual (i) hosts (ii) switches and (iii) router R1 to enable inter vlan communication.