...NETWORK TOPOLOGIES | Mukesh RaoDepartment of Computer Sc. & Engg. School of Engineering and Technology Sharda University, Gr. Noida UP, INDIA Mysteriousrao@gmail.comApril 14, 2015 | Abstract In recent days for computing, distributed computer systems have become very important and popular issue. It delivers high end performance at a low cost. Computers are connected by means of a communication network in a distributed computing environment which is arranged in a geometrical shape called network topology. In the present paper a detailed study and analysis on network topologies is presented. Definitions of Physical and Logical Topologies are also provided. Introduction Network Topology is the study of the arrangement or mapping of the elements (links, nodes, etc.) of a network interconnection between the nodes. Topologies can be physical or logical. Physical Topology means the physical design of a network including the devices, location and cable installation. Logical Topology refers to the fact that how data actually transfers in a network as opposed to its design. Some of the most common network topologies are: Physical Topology Physical Network Topology emphasizes the hardware associated with the system including workstations, remote terminals, servers, and the associated wiring between assets. Physical topology defines how the systems are physically connected. It means the arrangement of devices on a computer network through the actual cables that...
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...Company. It is a non-for-profit organization. Worldwide Reading Solutions has a small head office that is located in Manchester England. They want establish a best network in their head office. So for the build good network I will complete the entire 5 task. Task-1 Networking Infrastructure and Protocols A) How network components should be connected, topology, type of cable and data rate Computer network components include the main parts that are required to install a network both at the office and home level. Before delving the installation process, we should be familiar with each part so that we could choose the right component that fits with our network system. There are three primary...
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...LAN Topologies Lord Bones IT240 Jan 01, University of Phoenix - AXIA College LAN Topologies With this assignment I will discuss some topologies of a LAN as requested by questions 11, 12, and 13, chapter three from the textbook Local Area Networks. A “LAN (Local Area Network) topology is the appearance or layout of a network” (Regan, 2006). There are two forms of topologies of a network, namely, the physical- and logical topology with each its own types of topologies. The physical topology is what someone can see with his or her own eyes, i.e. a workstation, servers, cables, etc. while the logical topology is the dataflow of the network, how the data is moving from one point to another (Regan, 2006). In the following I will describe two physical topology types and one logical topology type, following the scenarios in the question’s mentioned above. In the first scenario there are four servers in the network with no hub present. The first (A) server is connected to the second (B), third (C), and the fourth (D). The second is connected to the third and fourth, while the third is connected to the fourth. (See figure 1.) This type of physical topology is called a Mesh Topology. A Mesh Topology is a topology where “every computer is linked to every other computer” (Regan, 2006). With this type of topology there is no hub or a similar device present. Also this type is difficult to install and certainly when it has to be reconfigured when a new computer is added to the network...
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...Network Topologies are in essence the way the network is laid out as it relates to the devices that are connected to it. If you could view all the devices connected to the network, the arrangement would suggest which type the network topology it falls within. The topologies can be described as either a physical or logical design in their defined layout. Network topologies are grouped in the following design categories, Mesh, Bus, Ring and Star Topologies. A mesh topology comes in two varieties, Full mesh and Partial mesh. Full mesh consists of connectivity between every node on the network, meaning each has a direct path to the other. A partial mesh topology consists of the same type of connectivity as a full mesh except you may have to cross nodes to reach another, meaning that direct connectivity may not exist. Mesh topologies rely on routing to be able to choose the correct path between the hosts. One of the largest mesh topologies is the Internet itself. While you may not have a direct connection to a web server, the routers in the path know exactly the best path to get you there. Mesh topologies are considered highly available or redundant. With multiple paths to a destination, one can fail and your connectivity will remain. This leads to mesh networks being very complex. Being complex makes them harder to troubleshoot when issues arise. Along with additional routing overhead and connections, mesh topologies tend to be the most expensive to deploy of the topologies listed...
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...Institute Network Topology Tom McKellips NT 1310 Aaron Bright October 10, 2013 Network Topology The following paper is going to discuss the three different types of network topologies, hierarchical star, bus, and ring. Each one of these topologies has different uses in the way we set up networks. For each type of topology there are going to be strong points as well as some weak points. The first one to be discussed is going to be hierarchical star. A hierarchical star is a network that has a central point such as an equipment room where all computers, routers, printers, and other devices are connected to. This type of network is mainly used to install a network throughout a large building or school. A star network is the easiest to install and the most universal, but if something happens to the central point than the whole network goes down. The next paragraph will discuss the bus type of network topology. A bus is a network that all devices are connected to a contiguous cable known as a backbone. A bus is used to link multiple star networks together, for example, a building with more than one floor each equipment room is connected by a single backbone to link the networks together. The bus has to have a terminator (usually a resistor) on both ends to keep the signal from bouncing back and forth. If the contiguous cable gets damaged than the whole bus network goes down. The last type of network topology to discuss is the ring. A ring topology requires that...
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...Topologies and Network Technology NTC/361 Monday, August 8, 2011 Thomas Krawczyk Topologies and network technology In every project, it is important to have a goal, and that goal should be the foundation on which a project team spring into action. The foundation should involve an infrastructural plan, and the usability of the components of the infrastructure. A project plan, as in any other plan, should outline the premise of the project and answer some basic questions like why a particular project is being proposed, what the project will accomplish, who will be the members of the project team and their responsibilities, and when the project will start and terminate. When it comes to a network design, the same principle of project planning applies, and a network topology is an important part of a successful network design. Network topology is the elemental organization of a network; it dictates the media that the network uses, the type of channel it accesses, the architecture of the network, and its operating speed (Tomsho, Tittel, & Johnson, 2004). A network topology deals with the physical layout of the network’s computers, cables, and many more components; a network topology also deals with how the components communicate with each other (Tomsho, et al., 2004). A network topology gives a diagrammatical picture of the network’s physical interconnections. A network topology can be discussed in its physical and logical forms; the physical form deals with the physical...
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...Understanding Basic Network Structure A network consists of 2 or more computers connected together, and they can communicate and share resources (e.g. information) Why Networking? Sharing information — data communication Sharing hardware or software - print document Centralize administration and support - Internet-based, so everyone can access the same administrative or support application from their PCs How many kinds of Networks? Depending on one’s perspective, we can classify networks in different ways Based on transmission media: Wired (UTP, coaxial cables, fiber-optic cables) and Wireless Based on network size: LAN and WAN (and MAN) Based on management method: Peer-to-peer and Client/Server Based on topology (connectivity): Bus, Star, Ring … Topologies There are different topologies that make up computer networks. Topology is the physical layout of computers, cables, and other components on a network. Many networks are a combination of the various topologies that we will look at: · Bus · Star · Mesh · Ring Bus Topologies A bus topology uses one cable to connect multiple computers. The cable is also called a trunk, a backbone, and a segment. Most of the time, as seen in Figure below, T-connectors are used to connect to the cabled segment. They are called T-connectors because they are shaped like the letter T. You will commonly see coaxial cable used in bus topologies. [pic] In a bus topology, all computers...
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...CONCEPT OF NETWORK: A network can be defined as a group of computers and other devices connected in some way so as to be able to exchange data. In a network of computers, people can share files and peripherals such as modems, printers etc. Each of the devices on the network can be thought of as a node (hub),each node has a unique address. In modern networking, data is transferred using packet switching. Messages are broken in to packets and sent from one computer to another. At the destination, data is extracted from packets and used to reconstruct the original message. TYPES OF NETWORK: Broadly there are two types of network: Local Area Network (LAN) – It confined to a particular geographic area such as a building or a college campus. Wide Area Network (WAN) – It covers cities, countries and continents. NETWORK TOPOLOGY: A topology describes the configuration of a communication network. The way in which the elements of a network are mapped or arranged is known as a network topology. A topology describes the physical and the logical interconnection between the different nodes of a network. Types of Network Topologies 1) Star Topology Adarsh S Kawale PRN: 12020941011 In this type of network topology, each node of the network is connected to a central node, which is known as a hub. The data that is transmitted between the network nodes passes across the central hub. Advantages – Suited to larger networks, easy to expand the network, easy to troubleshoot problems...
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...Network Consultant Scenarios Joshua Lillis IT/240 July 20th, 2014 Network Consultant Scenarios * What changes in equipment are required to bring this company’s network up to date to solve the shared-bandwidth problem? Since the office has 10 workstations connected to a 10 Mbps hub, each computer average bandwidth is 1 Mbps. Since the LAN is relatively small, you can change it to a 100 MB switch. Even if their NICs are only 10 MB, they can upgrade their NICs as need be. Since seem to transfer large files often, so this will allow for the transfers to go smoothly and not bog down the network. Effectively the transfer rate is 200 Mbps depending on what their NICs are capable of. * What topology and which type of device can be used in the manufacturing area to solve the cabling difficulties? The type of topology that would be used is an extended star network, since it will be connected to the office, which uses a star network topology. The device that would be used to overcome the cabling difficulties would be a Wireless Access Point, using a wireless router. We would need to buy Wireless NICs for each of the computers in the manufacturing areas. In case 3-1 the type of network it would be, is a client based model. It is a client based model since there is no centralized server. Old-Tech’s computers transfer large amounts of files to each other on the network. Since any of the users can share their resources on their computer, each person needs determine...
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...3 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...
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...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 shape of...
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... 1. What term refers to the physical layout of a network’s computers, cables, and other resources? topology, diagram, layout, or map 2. Joining the computers in a network at a central point creates a star topology. Which of the following statements is true of a star topology network? (Choose all that apply.) c. It requires much more cabling than a bus network. d. Its centralized nature makes network management easier. 3. A physical bus topology network requires terminators. True or False? True 4. Which of the following statements is true of a ring topology network? b. It provides equal access to all computers on the network. 5. Which of the following physical topologies is the most fault tolerant? c. mesh 6. What are two advantages of a star topology network? inexpensive easy to troubleshoot and configure 7. Which physical topology does switching use? star or extended star 8. A cable break in a bus network does not affect network communications. True or False? False 9. In a bus network, if the ends of the cable aren’t terminated, what occurs? signal bounce 10. Connecting computers to form a straight line creates a _______ topology network. physical bus or bus 11. How do switches provide better performance than hubs? ...
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...2014 LAN Topologies Assignment Case Project 2-1 You have been hired to upgrade a network of 50 computers currently connected to 10 Mbps hubs. This long-overdue upgrade is necessary because of poor network response time caused by a lot of collisions occurring during long file transfers between clients and servers. How do you recommend upgrading this network? What interconnecting devices will you use, and what benefit will you get from using these devices? Write a short memo describing the upgrade and, if possible, include a drawing of the new network. I have been recently hired to upgrade a company’s current network. Currently this company has a 10BaseT network established (Regan, 2004). This client is stating that they need to increase the overall bandwidth to the network and is having collisions issues occurring within the network which is causing more latency within the network. My two primary recommendations to upgrade this network are to; first go from a 10BaseT network to a 100BaseTX network, and second replace any hub currently in use with a switch capable of 100BaseTX data transfer standards. Transferring from a 10BaseT to a 100BaseTX network will require the additional purchase of networking devices but will increase the overall bandwidth from 10 Mbps to 100 Mbps for each user in the network (Regan, Local area networks, 2004). By replacing the outdated hubs currently in use with switch will create a more specific collision domain (Regan, Local area networks, 2004)...
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...(MWF) BSCS - IV Network topology Network topology is the arrangement of the various elements (links, nodes, etc.) of a computer[1][2] or biological network.[3]. Essentially, it is the topological 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. Bus Topology A bus network uses a multi-drop transmission medium, all node on the network share a common bus and thus share communication. This allows only one device to transmit at a time. A distributed access protocol determines which station is to transmit. Data frames contain source and destination addresses, where each station monitors the bus and copies frames addressed to itself. Ring Topology A ring topology is a network topology or circuit arrangement in which each network device is attached along the same signal path to two other devices, forming a path in the shape of a ring. Each device in the network that is also referred to as node handles every message that flows through the ring. Each node in the ring has a unique address. Since in a ring topology there is only one pathway between...
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...Unit 9 P1 & P2 P1: Describe the types of networks available and how they relate to particular network standards and protocols LAN: This basically stands for local area network and it is also a computer network limited to a small area so it isn’t on a large geographical scale and some examples include the university, college or a home. There are some benefits for the users of LAN and it includes making it easier for the employees that are working in a company to communicate ad also share information. The most common type of LAN is the Ethernet which is known by most people. There are two types of Ethernets which are connecting an Ethernet cable to the hub and this will establish a connection and the other type of Ethernet is the wireless one which doesn’t require a cable. WAN: This stands for...
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