In Computer What Is Topology And Types Pdf

in computer what is topology and types pdf

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What is Topology?

Computer networking has been around for several decades, which is the backbone of what we all know as the Internet today. The Internet is simply a network of networks, which means there is no such thing as a standalone computer on a network. For a user or host computer to participate in data and resource sharing, it has to be connected to some form of network topology. This has brought about the evolution of computer networking to include more devices, which will further enhance the process of information sharing across different geographical locations. Most people are already familiar with terminologies such as Local Area Networks or LANs , which means the computers are within the same geographical location or building, or Wide Area Networks WANs , which means the devices are separated by geographical distance.

Topology defines the structure of the network of how all the components are interconnected to each other. There are two types of topology: physical and logical topology. CSMA: It is a media access control used to control the data flow so that data integrity is maintained, i. There are two alternative ways of handling the problems that occur when two nodes send the messages simultaneously. Reliable: The mesh topology networks are very reliable as if any link breakdown will not affect the communication between connected computers.

What is Topology?

Ring Topology may be a network configuration where device connections create a circular data path. In this each device is connected to with its exactly two neighboring devices, like points on a circle which forms like a ring structure. A number of repeaters are used for Ring topology with a large number of nodes to send data and to prevent data loss repeaters are used in this network. Together, devices during a ring topology are mentioned as a hoop network. In this packets travels from from one device to another until they reach the desired destination.

Network topology pdf free download. Network topology is the way various components of a network like nodes, links, peripherals, etc are arranged. Network topologies define the layout, virtual shape or structure of network, not only physically but also logically. The way in which different systems and nodes are connected and communicate with each other is determined by topology of the network. Topology can be physical or.

Network Topology is the schematic description of a network arrangement, connecting various nodes sender and receiver through lines of connection. Bus topology is a network type in which every computer and network device is connected to single cable. When it has exactly two endpoints, then it is called Linear Bus topology. It is called ring topology because it forms a ring as each computer is connected to another computer, with the last one connected to the first. Exactly two neighbours for each device. In this type of topology all the computers are connected to a single hub through a cable.


Ring Topology. • Logical ring. – Meaning that data travels in circular fashion from one computer to another on the network. – Typically FDDI, SONET or Token.


What Is Network Topology And Types Of Topology Pdf

Network topology is the layout of the connections links , nodes , etc. The names used - such as ring or star - are only rough descriptions. The computers on a home network can be arranged in a circle but it does not necessarily mean that it represents a ring network. There are seven basic topologies: [3]. Which of these is chosen depends on what devices need to be connected, how reliable it has to be, and the cost associated with cabling.

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. The following sections discuss the physical topologies used in networks and other related topics.

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