Running head: Community College Network Proposal
Lake Havasu Community College Network Proposal
Lake Havasu Community College has an outdated computer system and is in the process of expanding. They are adding two separate buildings. The original building will remain the main building, but will require all the computers replaced. A new library is in the process of being built and will need to be networked along with installing the necessary computers. A new computer lab and classrooms is being built and will need to be networked along with installing the necessary computers.
Their internet connection is an old dialup system and the student’s computers do not have internet connections. They want to update their internet connection to a fast reliable connection, so that all the computers on the networking system have an internet connection. They also want to be able to create their own domain, so that students can access their course information online and that they can eventually offer online courses.
The college’s goal is to have all the buildings networked together with a fast reliable backbone system and to replace their old outdated system. They have a budget of $300,000 to $600,000 to spend on the new system.
Lake Havasu Community College has an old outdated system that is running Windows NT Server. The server is very slow and at peak hours of use it slows down to a crawl and retrieving information is very time consuming. There is only one printer in the shared office which causes a bottleneck while waiting for items to be printed.
The present computer lab is a part of the present library with only one printer to share. The graphics art classroom has 15 Mac computers and one printer. One classroom is setup with 20 computers for courses requiring computers for instruction. Another classroom is set up as a lab with 10 computers to share for the Computer Repair courses and the Networking Courses.
The front office has three computers, one at the information desk, so that the person working there can look up information, another in the Dean’s secretary’s office along with a printer and one in the Dean’s office with a printer.
To comprise a new network system for Lake Havasu Community College, the firsts aspect to consider is connecting all the buildings together. The college wises to connect them with a high speed, reliable backbone. The suggested solution would be to connect the buildings with fiber-optic cable. Fiber-optic cabling offers the bandwidth and speed that the college requires; with the bandwidth capability of 100Mbps to 1 Gbps. Another point to consider is the 700 foot distance between buildings. The distance is not an obstacle, because fiber-optic cable has a maximum cable length of 2 kilometers (6,561 feet). Fiber-optic cable is also the optimum choice when considering reliability and security. It is reliable, because it is not subject to forms of electrical interference; no electrical signals ever pass through the cable. The cabling is highly secure, because it emits no external signals that might be detected, thus virtually eliminating electronic eavesdropping.
Installation of a fiber-optic backbone could be more difficult and more expensive to install, however the benefits greatly outweigh any other alternatives, such as wireless, which can cost roughly around the same and is not as fast, reliable, and secure.
It is recommended that the wire be installed underground. The cable should be installed inside a protective covering. This will protect the wire from weather damage and it will also protect from unforeseen elements.
To connect the fiber-optic backbone to each of the three buildings, it is recommended that a multi-port switch be installed in each building. The switch is a high-speed multi-port bridge that can connect network segments, connect dissimilar media, and connect different network architectures. The switch is also chosen for its ability to dedicate bandwidth to each port, thereby making the network more efficient by ensuring that the maximum bandwidth is available to all computers on the network.
The next aspect of the network is the server that will support all three buildings. The server will be placed in the new computer lab, which will allow for optimum network efficiency.
The college wishes the server to be fault tolerant. There are many options available to achieve their goals. The system will be upgraded to Windows Server 2003, a networking operating system that is known to be reliable and stable. Windows Server 2003 was chosen as the upgrade to Windows NT Server, because it will make a smooth transition when transferring all the data from the NT system to the new 2003 system. The Technology staff is already familiar with the Windows environment, which will keep the training for the new system at a minimum. Both operating systems are very similar with a few upgraded and added features to Windows Server 2003,
It is recommended that the server have RAID 5. This will create a constant backup in the event that one hard drive crashes, the other disk will contain a complete copy of all the data. The second drive can replace the first drive in a matter of a short time, thus eliminating long periods of down time. It is simple to implement and it is easy to recover from disk failures. For further data redundancy it is recommended to have a second RAID 5 disk.
As added protection a good quality tape backup drive on the server is recommended. This will provide a removable means of storing data in the event that all the hard drives fail. The tape backup offers reasonable speed, high capacity for data storage, and it is cost effective.
The tape backups should be stored off site and a regular schedule for backups should be implemented. The purpose of off site storage allows for added security and a copy of data incase of some sort of damage to the server. Two backups can be made and one stored on site, while the second one is stored off site. After a backup is made, a verification of information should be done. This will ensure the integrity of the data.
The next aspect is the connectivity, equipment and upgrades needed for each of the three buildings. Each computer will need an Ethernet compatible network interface card (NIC) installed inside of the computer. An Ethernet 100 Base-TX configuration is recommended. Cat 5 UTP cabling is recommended and 24 port hubs, used to produce a star bus configuration to connect the server, computers and printers, as well as well as 8 port hubs in the computer lab. Using the 24 and 8 port hubs will provide for expandability. If it is necessary to expand the system another hub or hubs can be easily added to the system.
The graphics art lab with the Mac computers will be upgraded to the same 24 port hub, which will allow for expandability. A second printer will be added to service the needs of the lab. The hub will be connected to the computers and the printers with Cat 5 UTP cable to produce a star-bus configuration.
The main office contains the Dean’s office, his secretary’s office and the information desk. The three existing computers will be replaced and attached to a new hub that is shared with the production center. Each of the three computers will have a printer.
The production center will consist of two computers, one for the production specialist and one for the division chair’s secretary. The two computers will share a printer. The computers and printer will be attached to the same hub as the main office. The college has plans of expanding the offices and will need more computers install at a later time, so a 24 port hub will be used to accommodate future expandability.
The student services office is broken up into several smaller offices. Registration is in need of three computers and three printers, one at the registration desk and two inside of the registration office. The two student counselors will have a computer and printer each. Disability services will have one computer and printer in the office and six computers in the testing area. Disability services will also require a separate hub that will connect to the hub for student services. The separate hub will allow the testing computers and the disability services computer to share a printer, since these computers will be managed by disability services and they can easily add more computers if needed. Financial aid will require one computer and one printer for the office. There is two office staff that takes care of the information desk, they have workstations also. They will require one computer each and they will share a printer.
The bookstore will require three computers and two printers. One computer will be placed at the checkout desk, one in the manager’s office along with a printer, and the third computer will be placed in the assistant’s office along with a printer. An 8 port hub will be used in the bookstore to allow for expandability and creating a star-bus topology.
There are five full time faculty offices that will require a printer and computer each. These will also be attached to a separate 8 port hub producing a star-bus topology. Each hub will be connected to the primary hub and than connected to the switch which will be connected to the server. There will be a secure wiring closet were the hub and switch will be housed.
The library will have 15 workstations that will share a printer. The librarian will require a computer and a printer and the checkout desk will require a computer and a printer. All will be connected to a 24 port hub which will be stored in a wiring closet.
The computer lab will require 34 computers and 2 printers. Each of the 8 work pods will have 4 computers each and a set up for easy hookup for students that have their own laptop that wish to use them on campus. Two of the computers will be installed at the lab service desk for the IT staff. There are eight classrooms that will require 20 computers each and one printer each, along with a 24 port hub in each classroom. The extra ports will allow for quick hookups of laptops or the addition of a couple of more computers in each of the classrooms. Each of the hubs will be connected to the main hub in the server room.
Certain protocols must be installed to accommodate for a multi-vendor environment to communicate properly. Services for Macintosh will need to be installed on Windows Server 2003, which will enable the Macintosh clients in the graphics arts lab to connect to the resources on the server. Services for Macintosh will automatically convert files to Macintosh format when they are retrieved from the server and by doing this users can share files with any other users connected to the Windows Server 2003 system. These protocols will allow the entire network to communicate and share files.
The switch and wiring should be installed in a closet that can be locked for security and protection in the main building and in the library. The server and equipment should have a small room that can be locked for security and protection.
SonicWall will protect the network for firewall security, network anti-virus protection, content filtering, and auto updates. All of which is important to ensure the security and integrity of data and the end users.
Protecting the Networking System
As a part of the IT department taking care of the networking system if very important to ensure that there is no loss of valuable or confidential data. Downtime and damaged systems are kept to a minimum, because they are costly in time and money. The following is recommended to protect the networking system:
Satellite internet connection
Satellite is a high speed internet connection that offers download speeds of 500 Kbps or the speed of about 10 times the speed of a 56k modem. The up upload speed is about 100 to 256 Kbps. It is recommended that the satellite dish be installed on top of the computer lab for easy access.
Client Operating System
Windows XP Professional
Client Computer Description
Server Operating System
System Requirements for Windows Server 2003 Enterprise Edition
Dell PowerEdge SC1420 Server
The Dell PowerEdge server is a dual-processor tower, which is cost-effective, with high performance and is expandable.
Backup – Is a way of avoiding data loss. A tape backup system is one way of backing up a system and than storing the tape off site.
Bandwidth – this is the amount of data that can be transmitted in a fixed amount of time.
Bps – Bites per second, a standard of measurement when it comes to data transmission speeds.
Bridge – this is a device that connects two local area networks.
Bus topology – all of the devices are connected to a central cable. This is called the bus or the backbone.
Cat 5 UTP Cable – Category 1-5 – The EIA/TIA designations for unshielded twisted-pair cable are described in terms of categories, abbreviated as Cat1, Cat2, and so on.
Cat 5 RJ45 – Category 5 RJ45, used to connect the cat 5 UTP cable to the network adapter.
Ethernet – Networking technology.
EtherTalk – The standard for sending AppleTalk over Ethernet cabling.
Fault tolerant – is the ability of the system to respond smoothly when unexpected hardware or software failures happen.
Fiber-Optic Cable – A cabling technology that uses pulses of light sent along a light-conducting fiber at the heart of the cable to transfer information from sender to receiver. Fiber-optic can send data in only one direction; so two cables are required to permit any two-network devices to exchange data in both directions. What will be used is multimode. This will permit two connections with the 12-fiber distribution, allowing for exchange of data both ways.
Gbps – Gigabits per second, this is a data transfer speed measurement for high-speed networks. A gigabit equals 1,000,000,000 bits.
Hub – The central concentration point of a star network.
Mbps – megabits per second, a form of measurement of data transfer speed. A megabit is equal to one million bits.
Mirroring – Disk mirroring requires two disks, configured to work in tandem, when data is written to one disk; the same data is written to the second disk, thus creating a constant backup of the data. If either disk fails, then the other disk will contain a complete copy of all data. It’s even possible to mirror a system disk, so that if the boot disk crashes, the second one can take over.
Netgear – Ethernet Hub – 24- port stackable or rackable hub. It has a sturdy metal case design with a status LED built into each RJ45 port. BNC/AUI backbone support and MDI uplink port for network expansion.
Network adapter – A synonym for network interface card (NIC) that refers to the hardware device that mediates communication between a computer and one or more types of networking media.
Network Protocol – A set of rules for communicating across a network; a common protocol is required for any two computers to be able to communicate.
RAID – Redundant Array of Independent Disks, a category of disk drives that employ two or more drives in combination for fault tolerance and performance. RAID disk drives are used frequently on servers but aren’t generally necessary for personal computers. Level 5 provides data striping at the byte level and also stripe error correction information. This results in excellent performance and good fault tolerance.
Server – A computer that provides shared resources (files and directories, printers, databases, etc.) to clients across a network.
Services for Macintosh – Allows Macintosh computers to connect to a Windows NT server. With this service loaded, other computers are able to share files with Macintosh computers easily.
Sharing – One of the fundamental justifications for networking is sharing of resources.
SonicWall – With today’s broadband Internet connection, you have always on access to the Internet, which boosts business efficiency, improves communication with customers and partners, and enables remote workers to telecommute inexpensively. These broadband Internet connections support many useful applications and facilitate seamless information sharing, but they also make networks increasingly venerable to hacker attacks. SonicWall gives your system added protection against attacks so you can concentrate on growing your business. It has a comprehensive Internet security platform with features for virus protection, content filtering and firewall protection.
Star topology – all of the devices are connected to a central hub.
SuperStack 3 Modular 10/100/1000 Switch – 3Comm’s family of modular, stackable switches is designed to help fast-growing businesses add power and performances to their networks easily, economically and with minimal disruption. All switches include expansion capabilities.
Switch – Is a high-speed multi-port bridge, it is a an intelligent hub that maintains a bridging table, keeping track of which hardware addresses are located on which network segment.
UPS – Uninterruptible power supply. A device that has a battery, power conditioning, and surge protection built into it. You plug the UPS into the wall and the computer (and Monitor) into the UPS, so that while the AC power from the wall powers the computer, it charges the battery. Thus if the power goes out, the charged battery takes over and keeps the computer up and running long enough for you to perform an orderly shutdown, which can be important to bringing the server back up after the outage.