Free Essay

Main Topologies

In: Computers and Technology

Submitted By Devon450
Words 485
Pages 2
There has always been the use of chaining together different machines but there has always been the question of how they are used. For a network they are used by using a line or topology to connect all depending on where you are working there are a number of different kinds of topology such as bus, star and mesh but there are 3 that are more commonly used such as a hierarchical star, bus and ring network topology. The hierarchical star is like a regular star topology except that there are multiple server box’s and also uses switches to help maintain the string of the multiple connections. Whenever there is a failure in the cables unlike the regular stars that would hierarchical stars would not show complete failure in the connection. If the one connection severed only the host CPU will be affected and because some use switches the problem can be fixed quickly and easily. Unlike the star if another topology the bus topology is used the most by small business. Most schools and even in homes at times. The bus is exactly as it sounds it is just one connection connected to multiple CPU’s, Printer’s, DHCP (Dynamic Host Configuration Protocol) and other devices. The main difference between stars and busses there is only one connection between all of the machines that are able to be connected to the line. If the connection was disrupted the communication between devices will be lost, and the only way to get it back is to find another connection wire. The bus will need a termination box at each end of the line or there will be an open circuit and will not allow the network do its job. This one is strong since there is always an easy fix to whenever the problem appears it can only ever be one thing. The last topology is the ring topology. The ring behaves much like a Bus except instead of needing a terminal at the end of the line. All it does is go full circle and end at another CPU. A lot like the star it can use a switch but does not always do not require a switch nor is it absolutely necessary. The ring is just like the bus in a sense that it also only uses one cable to connect all hosts together. The only difference is that it is used to hold more host’s than other machines such as printers, DHCP, etc…. The only problem is the same as the bus if the one connection fails then the whole network stops working but it is also an easy fix since all it takes is one new cable. Even though there are ways of putting together a successful network these are the main ones used in homes, schools and computer labs. These can be easily set up with the help of the right technicians.

Similar Documents

Free Essay

Topology Paper

...In a hierarchical star topology, all of the computers within the network are connected to a single, centrally located point which is usually a hub of servers and switches located in the main equipment room and interconnected through the main cross-connection. This particular topology is typically found in commercial buildings where there is a horizontal cross-connection with a workgroup switch located in a telecommunications room that allows backbone cabling to interconnect with horizontal cabling. The hierarchical star topology is now almost universal and the easiest of the three networking architectures to cable. If a single node on the star fails or the cable to that node fails, then only that single node fails. However, if the hub fails, then the entire star fails. In a bus topology, it is considered the simplest network topology to establish. It is also known as the linear bus, which means that all computers are connected to contiguous cable or a cable joined together to make it contiguous. The strength of a bus topology is that companies find the lack of excess wiring inexpensive and beneficial for constant workflow and efficient business. The downside to this model is that if that single cable is damaged or down for any period of time, then the entire company is down for business which can cause catastrophic results for companies that rely on computing as their main means of business. A ring topology requires that all computers be connected in a contiguous circle.......

Words: 338 - Pages: 2

Premium Essay

Networking

...Networking Networking There are many different types of topologies and this paper will discuss many advantages and disadvantages of them. Bus Topology In a bus topology, all the network devices are in a linear shape which acts as a common backbone. There is a single cable which functions as the go between for the devices that are attached to this connector. The device will send the messages to all of the devices attached to this shared cable. However, only the intended device will receive and accept the message being processed. An example of a bus topology is an Ethernet cord which is easy to install. One problem with a bus topology if the main source fails, all devices attached will become unresponsive. Star Topology Star topologies are the most popular forms of networking used today, in both homes and businesses. The star is the central device of the network and is located in most homes today, the router. In order for the star topology to work, it does require more cabling than the bus topology, but unlike the bus topology, if a computer in the star topology fails, all other computers are not affected. However, if the router fails, this will cause the network to shut down. Ring topology is no longer used as widely as in the past. Mesh Topology Mesh topology works with many different routes. The term mesh is exactly the way mesh topology works, sending messages out and it will pick the shortest and easiest route. Mesh topology can also only travel in one direction,......

Words: 680 - Pages: 3

Premium Essay

Network Topologies

...Network Topology Paper Unit 3 Assignment 1 ITT TECHNICAL INSTITUTE NT1310 Physical Networking Peter Mahlan 20168804 04/08/2016 Table of Contents Scope or Introduction 3 Unit 3. Assignment 1. Network Topology 3 Section 1 3 Conclusion 5 Reference 5 Network Topology Scope or Introduction Unit 3. Assignment 1. Network Topology Course Objectives and Learning Outcomes In this assignment, you will describe the hierarchical star, bus, and ring network topologies. Assignment Requirements Chapter3 covered 3 main network topologies – hierarchical star, bus, and ring. Write a paragraph describing each topology. Discuss the reasons for using each, and any strengths/weaknesses each has. Submission Requirements Submit a 1-2 page Word document; double-spaced; Times New Roman 12 pt font. Cite all sources used. Section 1 In computer networking, topology refers to the layout of connected devices. Think of a topology as a network’s virtual shape or structure. This shape does not necessarily correspond to the actual physical layout of the devices on the network. For example, the computers on a home network may be arranged in a circle in a family room, but it would highly unlikely to find a ring topology there. Hierarchical Star Hierarchical star is also known as an extended star topology. Hierarchical or extended star topology is a star network with an additional networking device connected to the main networking device. Typically, a......

Words: 691 - Pages: 3

Free Essay

Unit 3 Assignment 1

...Hierarchical Star Topology consists of all the computers in a specific network being connected to a single main point, like a server or hub, which in turn, would be located in an equipment room or centralize location. With the Star topology, hubs are used to facilitate the topology. The drawback to this is, there is about a 20%- 30% waste in unused ports and a company is paying for more ports that is can or will use. Another drawback to this topology is the entire network is reliant on the hub. If it were to fail, the entire network becomes inoperable. In addition to that, there is also potentially a problem if one of the workstations goes down. It can cause interference in the Star topology and cause the entire network to fail. The Star topology, in its basic design, doesn't account for redundancy or diversity, which can make this design very dangerous for business applications. Some of the advantages of the Star topology is it gives a much better signal because all the information isn't shared to every device. You can also add and subtract new devices to the network by simply plugging into or unplugging a device from the hub and monitoring the network is simplified because everything is centralized. The Bus Topology is the simplest network topology. Ethernet is an common example of Bus topology. Once a main network line is laid, all peripherals on the network talk on the same line and listen for each other's communication. One drawback to this topology is at each......

Words: 585 - Pages: 3

Premium Essay

Cdcs

...easier to fix errors. The online services need to be extended up to international level. There should be security for the now-online services. Online services (troubleshooting and maintenance) should be able to continue its operation on 24/7 basis without interruption. Finally, existing technology should be used as much as possible to save cost. Based on the existing technology, it is known that the corporate MAN connection makes use of lease lines. In the office buildings, LAN connection with hybrid bus/star topology is used with Ethernet LAN transmission medium. In the new Network Design, a few additions are present. Figure 1 - Parstech Wide Area Network This network design shows the Wide Area Network and the relationships between the branch offices and the main headquarters. The main headquarters is where the application servers of the company is present. This is to enhance security by placing it in one place. The branch servers are connected to the main headquarters by means of leased lines using the transmission medium fiber optics. The bandwidth and data rate of fiber optics is required to maintain the connection under high network usage. Figure 2 – Sample Internal Architecture of LAN in one of the offices. The diagram above shows the architecture of an office building in one of the branches. The whole network is set behind a firewall as a measure of protection. The switches give connection to terminals and also resources such as printers. Some......

Words: 2052 - Pages: 9

Premium Essay

Network Topology Paper

...Assignment.Network Topology Paper Network topology is the arrangement of the various elements (links, nodes, etc.) of a computer network.[1][2] Essentially, it is the topological[3] structure of a network, and may be depicted physically or logically. Physical topology refers to the placement of the network's various components, including device location and cable installation, while logical topology shows how data flows within a network, regardless of its physical design. Distances between nodes, physical interconnections, transmission rates, and/or signal types may differ between two networks, yet their topologies may be identical. A good example is a local area network (LAN): Any given node in the LAN has one or more physical links to other devices in the network; graphically mapping these links results in a geometric shape that can be used to describe the physical topology of the network. Conversely, mapping the data flow between the components determines the logical topology of the network. Contents * 1 Topology * 1.1 Point-to-point * 1.2 Bus * 1.3 Star * 1.4 Ring * 1.5 Mesh * 1.6 Tree * 1.6.1 Advantages * 1.6.2 Disadvantages * 1.7 Hybrid * 1.8 Daisy chain * 2 Centralization * 3 Decentralization * 4 See also * 5 References * 6 External links Topology There are two basic categories of network topologies:[4] 1. Physical topologies 2. Logical topologies The......

Words: 5057 - Pages: 21

Free Essay

Uat Manager

...opened.” (Kudler Fine Foods website) Currently, Kudler Fine Foods has three locations. The home office is in La Jolla, CA, and the other two are located in Del Mar, and Encinitas, CA. All three locations will require an upgraded network. T3 Dedicated Line is all three stores together. The current network can be described as a Bus topology. A bus network topology is an architecture in which is a set of clients are connected via a shared communications line call bus. “A bus topology consists of a main run of cable with a terminator at each end. All nodes such as workstations, printers, servers are connected to the linear cable.”(omnisecu.com) In Kudler Food situation, each of 3 cities utlize the same configuration of service, workstation, standalone UPS and a dedicated OC1 SONET which are connected to an 100 Base T Ethernet backbone. Bus topology has some advantages and disadvantages. The main advantage of the bus topology is that computers or peripherals are easy to connect to a linear bus. Bus topologies are relatively easy to install and don’t require much cabling compared to the alternatives. One of the main disadvantages is when there is a break in the main cable the entire network will shut down. Furthermore, if the entire network is down, it is difficult to identify the problem. Bus networks work best with a limited number of devices....

Words: 294 - Pages: 2

Free Essay

Unit3Assignment1

...Unit 3. Assignment 1. Network Topology Paper Hierarchical Star - When implementing a hierarchical, all computers are connected to a single, centrally located point. This central point is usually a hub of servers and switches located in the main equipment room and interconnected through the main cross- connection. All cabling used in a hierarchical star topology is run from the equipment outlets back to this central location. Bus Topology - The is the simplest network topology. Also known as a , in this topology all computers are connected to a contiguous cable or a cable joined together to make it contiguous. The signal in a bus topology travels to both ends of the cable. To keep the signal from bouncing back and forth along the cable, both ends of the cable in a bus topology must be terminated. A component called a , essentially nothing more than a resistor, is placed on both ends of the copper ( coax) cable. The terminator absorbs the signal and keeps it from ringing, which is also known as overshoot or resonance; this is referred to as. If either terminator is removed or if the cable is cut anywhere along its length, all computers on the bus will fail to communicate. Ring Topology - A requires that all computers be connected in a contiguous circle. The ring has no ends or hub. Each computer in the ring receives signals ( data) from its neighbor, repeats the signal, and passes it along to the next node in the ring. Because the signal has to pass through each......

Words: 324 - Pages: 2

Premium Essay

Logs

...be possible for her without a downfall on the company. I would recommend The Bead Bar implementing a star topology network. Using the star topology will allow the company to upgrade and add new franchise offices to the network more easily. With the use of the other topologies such as the bus topology and the ring topology, the upgrading and adding other computers to the network would be difficult and expensive. The star topology network will also allow problems to be diagnosed easily. A wide area network (WAN) should be used to allow for the connection from different locations around the world. Each computer on the WAN will have access the headquarters and will be able to send information such as inventory and sales reports. Franchises and studios will also be able to access needed information from the headquarters. Even though the bus topology network is used in more business, the bus topology is difficult to add other devices to. The star topology can be upgraded more easily. The Bead Bar wants to add more franchise offices in the future; with the use of the star topology, adding new computers to the network will be easier. Each device is connected to a hub. A hub is the main part of this topology network and is the control center for the network. The hub is responsible for sending and receiving information from other computers in the network. The star topology is easy to install and upgrade. With the hub being the central communication device, computers that are......

Words: 1607 - Pages: 7

Free Essay

Network Topology

...Hierarchical star topology is where all computers are connected to a single, centrally located point. The central point is usually a hub of servers and switches located in the main equipment room. If there is a problem with the central hub then the network will not be able to work. It can bring the whole system down. By having everything centralize, it makes troubleshooting and reconfiguration simpler. It is usually a home networks that uses a hub or switch. Star Bus topology is the simplest of the network topologies. All of the nodes are connected to the single cable. The central cable is the backbone of the network. All of the workstations communicate with each other through the bus. The advantage to a bus topology is that it is easy to set up and is cost less than other topologies. It uses less cable due to the restriction of the length of cable. The disadvantages are the limit amount of devices to be connected. It is harder to troubleshoot when there is a problem. Maintenance will cost more in the long run. Bus Ring Topology is where all of the computers are connected together that it creates a closed loop. Each of the workstation can communicate with its neighbor by two other components. The data travels in one direction in the network. The advantage of ring topology is all of the traffic flows in one direction at high speed. Each computer will have equal access to resources. The disadvantages are that it can be slower than a star topology and......

Words: 326 - Pages: 2

Free Essay

M Commerce

...theory it is always possible to receive signals from 4 or more satellites anywhere on earth anytime. The main strength of GPS is that it provides precision of up to 10 meters. This is a revolutionary breakthrough in location detection and its precision has caused great interest in military, commerce and private sectors. There are several disadvantages in GPS. Power consumption for one is a major hindrance for mobile computing. This is crucial as electrical power is always in short supply even for modern mobile computing. Due to satellite reliance, GPS cannot be used indoors effectively and it is subjected to blockages by tall buildings outdoors. Sky scrapers in the cities create an ‘urban canyon’ that block coverage of satellites, causing significant problems for users in cities. The physical topology of a network refers to the configuration of cables, computers, and other peripherals. Physical topology should not be confused with logical topology which is the method used to pass information between workstations. Logical topology was discussed in the Protocol chapter. Main Types of Physical Topologies The following sections discuss the physical topologies used in networks and other related topics. * Linear Bus * Star * Tree (Expanded Star) * Considerations When Choosing a Topology * Summary Chart Star Topology Many home networks use the star topology. A star network features a central connection point called a "hub" that may be a hub, switch or......

Words: 1687 - Pages: 7

Premium Essay

Ntc362.Week5

...Team B - Integrative Network Design Project Jacob Acuna, Susan Granata, David Teague University of Phoenix - NTC/362 Ronald Bowell October 26, 2015 Page Break Kudler Fine Foods is a purveyor of specialty and gourmet foods in the San Diego, CA. area. They currently have three locations: the home office in La Jolla, CA., and two store locations in Del Mar, CA. and Encinitas, CA. Kudler is in need of a new network design and topology that will address multiple issues faced in a growing enterprise. The new network must incorporate a new network topology to reduce downtime and ensure that functionality will remain if one or two devices are down. In addition, a VoIP system must be installed over the network, along with an internal WLAN in each store. The WAN will tie all three stores together to increase collaboration and network file sharing, and the new network must be easily scalable to support growth of the company and integration of future stores. Of utmost priority is the security of the network. The sensitive nature of credit card processing makes Kudler Fine Foods a prime victim for cyber threats, and therefore policies must be put in place to protect the customer and employee data. Network Characteristics and Components The current network characteristics and components for the Del Mar store starts with a small office scenario that is accompanied by six Dell Vostro computers for management. All six computers are running Windows 7 and......

Words: 3311 - Pages: 14

Free Essay

Network Topologies

...Network Topologies. Hierarchical Star. the star network is one of the most popular network topology. In this network, all the nodes are connected individually to one common hub. In other words, it is a network topology wherein transmission stations are connected to the central node in such a manner that the design resembles the shape of a star. Basically, the star topology design is quite similar to a bicycle wheel with spokes radiating from the center. Advantages and Disadvantages It is very easy to install and manage star network topology as it is the simplest of the lot when it comes to functionality. It is easy to troubleshoot this network type as all computers are dependent on the central hub which invariably means that any problem which leaves the network inoperable can be traced to the central hub. In star topology, the data packets don't have to make their way through various nodes which makes sure that the data transfer is fast. The foremost problem with star network topology is the fact that it is highly dependent on the functioning of central hub. The size of the network is dependent on how many connections can be made to the hub. This network type requires more cable as compared to linear bus topology which means the expenses incurred would be relatively high. The performance of the entire network is directly dependent on the performance of the hub. If the server is slow, it will cause the entire network to slow down. Bus Topology Bus Topology is the......

Words: 648 - Pages: 3

Premium Essay

Networking Case Study

...Mumbai. Its main branch (head office) is in Wadala. The center has 20 computers, named from A to T and have multiple laser printers which are shared by all the computers. These are called as nodes, i.e.linking devices. It also has a TMS (Token Machine System). Connecting devices used are switches and routers.Switches are used because a hub has only 8 ports and if a system wants to connect more than 8 devices to a hub, a hub becomes inefficient. So a switch is used to connect a number of devices, which is then connected to one of the port of a hub, so that the rest of the ports of the hub remain free. DATA TRANSMISSION : The transmission of binary data across a link is accomplished in serial mode. Serial Data Transmission : In serial data transmission one bit follows another , so we need only one communication channel rather than ‘n’ to transmit data between two communicating devices. The advantage of serial data transmission is that with only one communication channel, serial transmission reduces the cost of transmission over parallel by roughly a factor of ‘n’. In serial mode, one bit is sent with each clock pulse. Topology used In this centre, a star topology is used. Because, itis less expensive, requires less cabeling and easyto install and reconfigure. STAR TOPOLOGY : In a star topology, each device has a dedicated point to point link only to a central controller , usually called a‘hub’. The devices are not directly linked to each other. A star topology does......

Words: 1016 - Pages: 5

Free Essay

Nt1210

...Topology Worksheet DIRECTIONS: Complete the following worksheet. Identify each topology diagram by name, and add the typical logical and/or physical characteristics associated with each topology. Topology Diagram Topology Name Logical Characteristics Physical Characteristics Star Network Topology Easy to install and wire. No disruptions to the network when connecting or removing devices. Easy to detect faults and to remove parts. A star topology is designed with each node (file server, workstations, and peripherals) connected directly to a central network hub, switch, or concentrator Data on a star network passes through the hub, switch, or concentrator before continuing to its destination. The hub, switch, or concentrator manages and controls all functions of the network. It also acts as a repeater for the data flow. This configuration is common with twisted pair cable; however, it can also be used with coaxial cable or fiber optic cable. Ring Topology in which the signal path is a ring but the external physical appearance is that of a star, as in Token Ring networks. This is sometimes called a star-wired ring. can be a true physical ring or a logical ring. A true ring network is similar to a linear bus, in that each computer is connected to the next in a line--but with one important difference. In this case, the last computer is connected back to the first, eliminating the "beginning" and "end" of the network and forming a complete circle around......

Words: 646 - Pages: 3