This is a Discussion I have for class

You have been asked to design a LAN for a successful CPA firm with five departments in one building and a total of 560 employees. Currently, the firm has no networked computers, and it is open to any suggestions you can offer. The firm does have a few requirements, however. It wants to make sure it can easily expand its LAN in the future without exorbitant costs and without moving a lot of equipment. The firm also wants to make sure that every department has very fast access to the LAN, and, of course, it wants the LAN to remain up at all times. It has already decided to use Novell's latest network operating system. Describe in your own words the kind of LAN you will design for this company. You are not required to provide a drawing for this assignment unless you want to. However, I expect a fairly complete description of your recommendations. Your proposal should be at least 2 to 3 paragraphs. You should address all issues that were discussed in the assignment from Unit 2 with the addition of any additional information you learn from reading chapter 6 in your textbook. For example, you need to talk about the ?cabling plant?, including the type of cable, cabling topology, and networking hardware (hubs/switches/routers/etc) that you would recommend. You should also address what network protocol and technology you would propose (e.g. Ethernet, Token Ring, etc). Give reasons and justification for your choices.

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You can send my consulting check via TechRepublic. First off, there is no reason to consider any topology other than ethernet. It is the almost universal, de facto network choice for the topology. 500 to 600 users? You forgot about the layout of the building(s), which could change things a little.

I would start with two sets of routers. One for you corporate network and the second to interface the outside world. Two routers each, running VRRP between each other so you have redundancy on both networks. They, in turn, talk OSPF between the two set of routers. That gives you the ability to limit what is passed out from your corporate network.

The corporate set of routers should have both fiber and copper gig ports available. That way you can expand for any need that pops up. And the do pop up. You can hang much cheaper layer 2 switches off of these routers for end user ports and interfaces to servers.

The WAN, as I will call them, routers should have more copper ports, and a lot less VLANs. You don’t really need fiber here because there should not be great distances. Logically. all it needs is one routing instance to talk to the corporate network. It in turn, will route what you want into your DMZ. It can also interface with everything outside of the “main” location, such as remote offices, VPN appliances, firewalls, etc..

Any more information and I would want to be paid.

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