Switched Networks
Networks are getting more and more popular, and because of this more people use them, which slows them down. Networks in the future will need to have enough bandwidth to support applications, like multimedia, witch require larger bandwidth. Switching will change the way networks are designed. These changes will maximize productivity.
Switching technology is increasing the efficiency and speed of networks. This technology is making current systems more powerful. Many networks are experiencing bandwidth shortages. There are several reasons for this including: an increase in traffic, because networks have so many users, Amount of data between client/server applications,
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It sends information directly from the port of origin directly to its destination port. Switching increases network performance, enhances flexibility and eases moves, add-ons and changes. One of the benefits of switching is that it maintains a direct line of communication between two ports, and maintains multiple simultaneous links between various ports. It reduces network traffic by reducing media sharing.
This technology has some benefits over ethernet routed networks. First, a 10 Mbps or 100 Mbps shared media can be changed to 10 Mbps or 100 Mbps of dedicated bandwidth. Routers have many devices attached to their ports, sharing the bandwidth. Switches let you to connect either a shared segment of bandwidth (workgroup) or a dedicated one (server) to each port. Second, this can be done without changing any software or hardware already on the workstations Finally, a switch installation is less complex than a bridge/router
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It is used for general, or simple task, RISC switches are not as well at performing specific tasks.
One of the advantages of RISC is that it is inexpensive compared to one with customized CPU. RISCs are already somewhat common in businesses and are off-the-shelf processors. This type of switch can perform some functions similar to a router. The downside of this type of RISC is that it is a store-and-forward processor that is not as fast as an ASIC switch.
ASIC (Application Specific Integrated Circuit) This is the other design widely used in switches to process. They are custom designed to handle specific operations, all of the functions are in hardware. If any changes are needed, manufacturing must be done to rework hardware. No software upgrades are available.
Another type of network architecture that is benefiting from switching is, token ring. One of the advantages is – faster and larger networks. Since switches do all of the work that routers and bridges do, and are deticated, it makes since that companies are using more and more switches in a token ring network. There is another technology that is starting to get more popular than ethernet or token ring, it is called
When using routers, you need many routers in order to route the information to the correct location, as one router will not be able to manage this task. Explain how the routing schemes handle this problem.
“A bridge is a device that is used for the interconnection of LANs that use identical
... 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.
Technological: Decreasing communication costs, strong increase in the telecommunications infrastructure, the availability of high speed data connection, internet and ever evolving hardware and software technologies have made it possible to move information in an inexpensive, quicker and quality efficient way, allowing geographically dispersed teams to work together.
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.
Technology will always continue to advance and doors will begin to open. In the text “Our Future Selves” by Eric Schmidt and Jared Cohen they discuss as technology advances the positive outcome of connectivity. Greater connectivity will make the wold a better place because it will help the world be more efficient in sharing and discussing ideas and discoveries. Economically the world can find ways to enlarge their businesses and become more efficient to maximize profits. Sharing data is another advantage businesses can
A peer-to-peer network is relatively less expensive and much simpler to manage and setup, than client/server because money does not have to be invested in establishing server hardware or software and the number of users are minimal. Since, a peer-to-peer network is only preferable on networks operating on at least five to ten computers that do not need heavy file or application sharing, the cost is reasonable. On another note, based on a network with fifteen workstations, using a peer-to-peer configuration may save money upfront, but it could cost a business a lot of time and money in the long run. The reasons for this include, the lack of a central organization, which make data harder to find, no central storage location for archiving files, which may degrade client workstation performance, and lack of overall network management.
When businesses experience a slowdown in their computer network system it often results in an overall slowdown in their productivity. The reliance that we have placed upon our computers has grown so much that the slightest deviation from its normal functioning capabilities can be the difference between a productive work environment and one heading in the opposite direction. We often take our computers for granted and expect them to execute our demands at the click of a button. Very little thought goes into what makes our computers run at optimal speed and, even more problematic, what could cause our computers to slow down. As we place more and more emphasis on the role our computers play in day-to-day business operations it becomes imperative that we become more
Change is one of the many concepts in life which is inevitable, this theory applies in not only in everyday life but in the world of business as well. I can recall optimist discussions during my adolescent years about how different things would be in the future. We knew in our hearts that by mid 2000s there would be flying cars and other types of futuristic gadgets that would change our lives. As I type this report I can’t help but to realize just how much has changed since my school days and the rate of change we experience every day. I joined the Army at its point of transition from paper files to computer. I remember an older Supervisor who was on the brink of retirement telling me to get savvy with computer programs because it was the new direction and would soon
It just doesn't get much simpler than the physical bus topology when it comes to connecting nodes on a Local Area Network (LAN). The most common implementation of a linear bus topology is IEEE 802.3 Ethernet. All devices in a bus topology are connected to a single cable called the bus, backbone, or ether. The transmission medium has a physical beginning and an end. All connections must be terminated with a resistor to keep data transmissions from being mistaken as network traffic. The terminating resistor must match the impedance of the cable.
Prior to the 1960s, what little computer communication existed comprised simple text and binary data, carried by the most common telecommunications network technology of the day; namely, circuit switching, the technology of the telephone networks for nearly a hundred years. Because most data traffic transmissions occur during a very short period of time, circuit switching results in highly inefficient use of network resources. In 1962, Paul Baran, of the Rand Corporation, described a robust, efficient, store-and-forward data network in a report for the U.S. Air Force; Donald Davies suggested a similar idea in independent work for the Postal Service in the U.K., and coined the term packet for the data units that would be carried. According to Baran and Davies, packet switching networks could be designed so that all components operated independently, eliminating single point-of-failure problems. In addition, network communication resources appear to be dedicated to individual users but, in fact, statistical multiplexing and an upper limit on the size of a transmitted entity result in fast, economical data networks.
New technology gives the opportunity of efficiency and better communication. According to Chron.com, technology has made the workplace more efficient because “digital filing systems save space, paper and printing costs. The use of computer systems allow corrections to be made instantly. Resources like electronic files and access to information technology are available with the click of a button” (Scott). Without technology, this process would not run as smoothly and be as organized .
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.
Communicating with anyone in the world continues to get more efficient every single day. Technology has made communicating faster and in better quality. Business meetings can now be held with people anywhere in the world, at any time during the day, over a video call. Business people are also using email so much more than they are the telephone because of the efficiency. People do not answer a phone call when they do not know the number that is calling them. People will answer an email much faster than calling back a person who has left a voicemail for them.
Since nodes themselves are not relied upon for communication, the failure of a single node is not problematic for the rest of the network. For a major issue to occur, there must be a problem with the bus itself. Despite its simplicity and reliability, the bus network does have several limitations. The cable length of the bus is limited due to data loss. Also, a bus network may have performance issues if the nodes are located at scattered points and do not lie near a common line....