Ethernet LAN

Project 5-3
In this project, you will sketch an Ethernet LAN that uses more than oneversion of the 802.3 standard and includes some legacy equipment. You’llalso label each broadcast domain, collision domain, and Ethernet type. Forthis project, you need only a pen or pencil and paper.

1. On the left side of your paper, draw a hub and label it“Hub A.”
2. Draw lines connecting Hub A to three older workstations. Label the three lines
“10Base-T.”
3. Draw a switch and label it“SwitchA.”Then draw a line connecting Hub A to Switch
A. Label this line“10Base-T.”
4. In the middle of your sheet of paper, draw a router. Label this router“Router A.”
5. Draw a line connecting the switch to Router A. Label this line“100Base-T.”
6. Draw several clients—three tower desktops, two printers, three laptops, and a server—and lines connecting each client to the switch you drew in Step 2. Label each of theselines“100Base-T.”
7. Draw a second router just to the right of Router A and label it“Router B.”
8. Draw a line connecting the two routers and label this line“1000Base-T.”
9. On the right side of the page, draw a mirror image of the portion of the LAN on the leftside of the page so the right side includes“SwitchB”and its nine clients and“Hub B”and its three clients, with the same type of Ethernet connections.
10. On your drawing, circle and label each separate collision domain. How many are there?
11. On your drawing, circle and label each separate broadcast domain. How many are there?
12. Based on what you know about Ethernet and CSMA/CD, and assuming all workstations and servers on the network are generating approximately equal amounts of trafficwhile printers generate less traffic, what portions of the network you’ve drawn willlikely experience the highest number of collisions? Which will experience the least?
13. What type of backbone does this LAN use?
14. If you were designing a new LAN, what pieces of the network you drew would you changeor replace? What equipment and wiring upgrades would your recommendations require?
15. Redraw the LAN to include the recommendations you made in Step 14.

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