The internet sharing in the data network was done in unplanned manner where two internet connections where assigned to individual users, that is one connection per user, and the other two connections where supplying the rest of the data network, each connection assigned to a specific location that is the sales department have one connection and the drawing section has one connection, Microsoft internet sharing connection facility that is freely available in Windows client operating systems is used to share internet connection to the other devices, in each section, by default this type of connection will assign the gateway with a 192.168.0.1/24 IP address and by enabling the clients to get the IP addresses dynamical, they will all be assigned with an IP address from this subnet, since the same setup is used at the other section, an IP conflict occurs when the uplink cable is connected permanently. Therefore the link is being used as a back up, with the cable only plugged in when the link on the other side has failed.
All the connections are either using shielded twisted Pair or unshielded Cat5e cable which a maximum speed of 100Mbps. Though in practise this speed may be lower due to effect by external factors affecting the line, like electromagnetic current that can be relayed by the heavy machinery in the workshop area, hence this can be one reason the network seem to be slow.
4.2.1.1 HARDWARE DEVICES
• ADSL routers : There are four Belkin ADSL modems with built in routers, the routing capabilities are simple designed for home based usage, offering minimum security features and network address translation, dynamic host control protocol (DHCP) services.
• Switches: All the switches are entry level unmanaged switches. These sw...
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...d switches, which are lacking the capabilities to support management protocols or port mirroring, an alternative method was used, to capture the traffic and utilisation data of the network. A hub was used at the main office closed to the switch connecting to the internet machine.
The internet sharing was disabled at one side, the back up uplink cable was plugged and all traffic to and from the external network and servers was forced to pass through the hub, figure 4.2 shows the utilisation of the network, though the figure only shows a small portion, but the trend of the utilisation indicates that the network is not fully utilised and bottlenecks that cause slowness may be caused by other factors such the internet speed or interferences on the cable signal.
The interference on the line could not be measured as the device for measuring the line was not available.
Cisco Designs, manufactures, and sells Internet Protocol (IP) - based networking and other products related to the communications and information technology (IT) industry and provide services associated with these products and their use. The company provides products for transporting data, voice within buildings, across campuses and globally. The products are utilized at enterprise businesses, public institutions, telecommunications companies and other service providers, commercial businesses, and personal residences. Cisco conducts its business globally and manages its business geographically. Its business is divided into the following three geographic segments: The Americans; Europe, M...
A Hub is a networking device that allows one to connect multiple PCs to a single network. Hubs may be based on Ethernet, Firewire, or USB connections. “A switch is a control unit that turns the flow of electricity on or off in a circuit. It may also be used to route information patterns in streaming electronic data sent over networks. “
... access to what and in which sequence. The router connects the LAN to other networks, which could be the Internet or another corporate network so that the LAN can exchange information with networks external to it. The most common LAN operating systems are Windows, Linux, and Novell. Each of these network operating systems supports TCP/IP as their default networking protocol. Ethernet is the dominant LAN standard at the physical network level, specifying the physical medium to carry signals between computers, access control rules, and a standardized set of bits used to carry data over the system. Originally, Ethernet supported a data transfer rate of 10 megabits per second (Mbps). Newer versions, such as Fast Ethernet and Gigabit Ethernet, support data transfer rates of 100 Mbps and 1 gigabits per second (Gbps), respectively, and are used in network backbones.
The Albany, GA. (See attachment 2) network has 1 WAN connection to corporate headquarters. This connection is a fractional T1 with a 256k circuit for email and 1.5Mbps for burst. The WAN is not protected by any type of network security devices. The network inventory includes:
The Unistep IRP Elexol EtherIO 24 Module is a network board that enables multiple devices to connect to an Ethernet network, communicate with each other, and relay information when changes occur. The IRP module is a micro-controller, integrated with many features for interacting with devices connected on a generic local area network; this module was designed to be used in conjunction with other network devices or modules. Some of the applications for the device include industrial automation, digital input and output functions, system monitoring, remote data accessing, controlled machinery, and remote power control.
Sending data through the internet efficiently has always posed many problems. The two major technologies used, Ethernet and Asynchronous Transfer Mode (ATM), have done an admirable job of porting data, voice and video from one point to another. However, they both fall short in differing areas; neither has been able to present the "complete" package to become the single, dominant player in the internet market. They both have dominant areas they cover. Ethernet has dominated the LAN side, while ATM covers the WAN (backbone). This paper will compare the two technologies and determine which has a hand-up in the data trafficking world.
Berean¡¦s existing network infrastructure is wire line, and uses a T1. Remote users access the network through a dial-up modem pool. Berean¡¦s wire line network model severely limits the accessibility and effectiveness of the Berean network. For example, employees in Berean facilities are unable to access the network easily from meetings, the cafeteria, or anywhere other than their offices. In addition, the effectiveness of remote users is limited by the slow speed of present-day dial-up modem connections.
Troubleshooting media problems on a bus networks can be very tedious, since a break in the backbone will bring down the entire LAN. For this reason, bus topology is not considered one of the more robust network topologies, compared with star or mesh. A loose or missing terminating resistor can also bring down a LAN.
The purpose of this paper is give a summary of the function and use of Routers in today’s information age. To cover the complete subject of routers and routing, would be beyond the scope of this research paper. However the basic definition of a router is “ A device used to connect networks of different types, such as those using different architectures and protocols. Routers work at the Network layer of the OSI model. This means they can switch and route packets across multiple networks. They do this by exchanging protocol-specific information between separate networks. Routers determine the best path for sending data and filter broadcast traffic to the local segment.”
Ethernet is a household of processor interacting machineries for local area networks. Ethernet was brought to light in 1980 and consistent in 1983 as IEEE 802.3. Ethernet has basically substituted rival online local area network machineries such as token ring, FDDI, and ARCNET. The Ethernet ethics include some cabling and beckoning alternates of the OSI physical layer in use with Ethernet. The unique 10BASE5 Ethernet recycled coaxial cable as a collective medium. Well along the coaxial cables remained exchanged with twisted pair and fiber optic contacts in combination with hubs or switches. Figures rates stood sporadically increased from the innovative 10 megabits per second to 100 gigabits per second. Structures talking across Ethernet split a brook of info into smaller parts called frames. Each frame held basis and endpoint discourses and error-checking information so that dented data can be perceived and re-transferred. As per the OSI model Ethernet delivers amenities up to and counting the info connection layer. Meanwhile its profitable announcement, Ethernet has booked a great grade. Landscapes such as the 48-bit MAC statement and Ethernet frame arrangement have prejudiced other interacting protocols.
Local Area Networks also called LANs have been a major player in industrialization of computers. In the past 20 or so years the worlds industry has be invaded with new computer technology. It has made such an impact on the way we do business that it has become essential with an ever-growing need for improvement. LANs give an employer the ability to share information between computers with a simple relatively inexpensive system of network cards and software. It also lets the user or users share hardware such as Printers and scanners. The speed of access between the computers is lighting fast because the data has a short distance to cover. In most cases a LAN only occupies one or a group of buildings located next to each other. For larger area need there are several other types of networks such as the Internet.
I believe that World Wide Web restrictions should not be allowed. I believe that they are not helpful to the people that use the World Wide Web. I feel that the restrictions on the World Wide Web at school are too strict. At school most sites you try to view are prohibited and they are totally harmless sites. I feel that at school the only restrictions that should be put on the World Wide Web are restrictions to pornographic sites. Even these sites should not be blocked because some harmless sites have web addresses that would seem like a pornographic site but end up being a totally harmless site. With the block at school some of these harmless sites are blocked and therefor limiting the web user who made need information from sites like these. Most students know better than to visit pornographic sites at school. So this block that forbids students to visit most sites just hurts the students learning ability in some cases. There should not be a block on the World Wide Web at school and if a student does visit a pornographic site then they should be prosecuted or disciplined.
By 2004, the wireless subscriber base worldwide is expected to reach 1.4 billion users, and approximately 300 million users will be accessing the Internet from some form of wireless appliance. The race is on, and Nortel Networks have first-mover advantage.
The connectivity that I mean is an internet connection. There are several components that are used to connect the computers to the internet, such as modem, Digital Subscriber Line (DSL), wireless, etc.
Everything revolves around the internet these days. Every business, big or small has a internet website for you to visit. Let’s face it, the internet is not going away, we as a people must learn to use this tool and not think of it as a negative thing. The internet must be used positively to benefit us. We can find anything we want through the internet. The internet can be abused but we must educate our children so they can use it effectively to their advantage. We definitely need to make most schools have the internet in classrooms, there is no doubt about it.