Network topology Star networks Star networks is a LAN in which all workstations are directely connected to the central computer ( HUB). A hub simply takes the signal sent from each workstation amplifies it and transmits it to all the other workstation attached to the hub. In some case central computer acts as a workstation. Connections can be wireless or wired. Advantage : • if one connection fails it doesnt affect other workstations. Hub treat every arm as a individual network. • easy
Network Topologies Topology refers to the layout of connected devices. The choice of topology is dependent upon • type and number of equipment being used • planned applications and rate of data transfers • required response times • cost Network topologies are categorized into the following basic types: Bus Topology Bus networks use a common backbone to connect all devices. A single cable, the backbone, functions as a shared communication medium that devices
| Bus topology diagram | In Star topology, all the components of network are connected to the central device called “hub” which may be a hub, a router or a switch. Unlike Bus topology (discussed earlier), where nodes were connected to central cable, here all the workstations are connected to central device with a point-to-point connection. So it can be said that every computer is indirectly connected to every other node by the help of “hub”. All the data on the star topology passes through
Network Topology McDonald is one of the largest fast food companies in the world. They helped revolutionize the way restaurants run by implementing business information system as well as new technology. In fact McDonald has more than 1.6million employees, franchisees and suppliers in 118 countries around the world. To connect all of them, McDonalds must build a stable and scalable intranet portal. Hence, McDonald has to choose the right network topology to fully utilize the network technology.
The way in which the connections are made is called the topology of the computer network. Network topology specifically refers to the physical layout of the network, especially the locations of the computers and how the cable is run between them. a) Ring Topology * Each computer is connected to the next computer, with the last one connected to the first. * Every computer is connected to the next computer in the ring, and each retransmits what it receives from the previous computer.
Vladimir Pierre 7/17/14 Network Topology and Transport Protocols Bus Topology The physical bus topology is simple when it comes to connecting nodes on a Local Area Network. The most common implementation of a linear bus topology is the Ethernet. All devices in a bus topology are connected to a single cable called the bus, or backbone. 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
Network Topology and Wiring Paper NTC/361 Introduction Network topology is the presentation of the different parts, such as nodes and links, of a computer network. It is the topological construction of a network, which can be represented logically or physically (“Network topology,” 2015). There used to be a plethora of network topologies, in the past that an organization could choose. Today, however, the landscape has changed, and solutions to networking have become simpler and less costly,
Topologies Topologies Mesh Topology – is a LAN and employ’s one of two arrangements for connection which, is a full mesh topology or a partial mesh topology. The full mesh topology links the nodes to each other directly and the partial mesh topology has some nodes connecting to the nodes that exchange the most data although, the remaining nodes are connected to the other nodes. Advantages- the network has the capacity to expand without becoming disrupted and between all devices provide
October 2, 2015 Unit 2 Assignment 1: Identifying Network Topologies Mesh Topology – Has a point to point link to every other device. Advantages are: They use dedicated links so each link can only carry its own data load, if any one link gets damaged it cannot affect the others, and fault identification and fault isolation are easy. Disadvantages is the wiring cost and the hardware to connect each device can be expensive. Star Topology – Each device has a dedicated point to point link to the
Ciccarelli, Patrick, and Faulkner, Christina. Networking Foundations. Alameda, CA, USA: Sybex, 2004. ProQuest ebrary. Web. 2 January 2015. Copyright © 2004. Sybex. All rights reserved. Ciccarelli, Patrick, and Faulkner, Christina. Networking Foundations. Alameda, CA, USA: Sybex, 2004. ProQuest ebrary. Web. 2 January 2015. Copyright © 2004. Sybex. All rights reserved. Ciccarelli, Patrick, and Faulkner, Christina. Networking Foundations. Alameda, CA, USA: Sybex, 2004. ProQuest ebrary. Web