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Computer Networking project

post #1 of 4
Thread Starter 
Hi guys. I'm a first year Computer Networking student and I have a current project involving writing a proposal for replacing a branch offices hubs with switches. I have never done anything like this before and have some questions to make sure I am on the right track. Here is the full assignment:

Objectives

§ Introduce the variety and prices of network components in the market.

§ Gather pricing information for Ethernet switches and NIC’s for a network.

§ Defend your quote to the company as to why this upgrade is need and how it will help the company.

Background/Preparation

You have been asked to put together a proposal for replacing a branch office’s hubs with switches. You will research at least two different solutions and develop a proposal. The project details follow:

Your company has a branch location using an Ethernet hub network. Congestion issues are becoming a serious problem as the company adds more services to the network. Currently, each of the four floors has one or more hubs in a wiring closet supporting 30-35 computers except the ground floor, which has 65 computers. All 8 printers are plugged into the hubs also.

The four floors plug into an 8-port 10 Mbps switch that the company added earlier to reduce the congestion problems. Although that solution was a major improvement, it can’t keep up all of the time. The two servers and router to the Internet also connect to the 8-port Hub.

The branch cabling is relatively new and certified to CAT 5 standards. The company is interested in any major cabling changes at this time.

At least 75 percent of the 160 current workstations have NIC’s with 10, full-duplex capabilities but need to be updated. All laptop computers have the newer NIC’s. The other 25% of the computers have newer 10/100 full-duplex NIC’s.

The requirements include the following:

§ Replace all hubs with switches that are manageable. Im thinking of getting manageable switches here with 48 connections but what about the ground floor with 65 computers?

§ Replace the 10 Mbps NIC’s for existing desktop PCs. No problem here just get PCI NIC with full-duplex capabilities for all desktops 10/100 right?

§ Each host connection should be 10/100 Mbps minimum can be higher.

§ What options are available for further enhancements in the future?possible upgrade to Gigabit ethernet?suggestions?

§ List all prices and where you found the reference to all products used.

What Hubs need to be replaced and Why? all hubs should be replaced to increase bandwidth correct?Are there higher bandwidth options for connecting the two servers? replace the 8-port hub that connects to the router and 2 servers but with what?If so what options are there and at what cost to the company.

What options are there for the wireless connections for Laptops?wi-fi? what are my options here?
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post #2 of 4
The requirements include the following:

§ Replace all hubs with switches that are manageable. Im thinking of getting manageable switches here with 48 connections but what about the ground floor with 65 computers?

Cisco 7500 series 48 port 10/100/1000 switch for each floor. They can fiber connect between both. And just get 2 of the first floor, use the cisco interconnect and it becomes a 96 port switch.

§ Replace the 10 Mbps NIC’s for existing desktop PCs. No problem here just get PCI NIC with full-duplex capabilities for all desktops 10/100 right?

go 10/100/1000 Nic, slight cost difference, big performance increase

§ Each host connection should be 10/100 Mbps minimum can be higher.

read above..

§ What options are available for further enhancements in the future?possible upgrade to Gigabit ethernet?suggestions?


read above

§ List all prices and where you found the reference to all products used.

Cisco 7500's are roughly $5000 each.. the nics you can find on newegg

What Hubs need to be replaced and Why? all hubs should be replaced to increase bandwidth correct?Are there higher bandwidth options for connecting the two servers? replace the 8-port hub that connects to the router and 2 servers but with what?If so what options are there and at what cost to the company.

Reliability with cisco.. large 48G backplane, so no oversubscription issues, even at full 1G. And ability to implement VLANs, web management of switches, and etherchannel for servers, if you need more bandwidth from servers, you can add between 1 and 4 Gig connections to the switch for up to 4GB total. Plenty for today's needs.. looking forward to tomorrows needs without needs for additonal upgrades then (Companies love to hear that you planed for tommorow as well as just for today)

What options are there for the wireless connections for Laptops?wi-fi? what are my options here?

Go with Wireless Access Points. They plug into your 7500's, and will feed -g to any laptops. They are affordable, a linksys would be fine for around $100
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post #3 of 4
Thread Starter 
Thanks for your time. Great ideas. Your rep will reflect your effort!
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post #4 of 4
Anytime .

Nice to actually be able to share knowledge
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Hard DriveOptical DriveOSMonitor
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