A review of Network Topology

Abstract

A network topology is how computers, printers, and other devices are connected over a network. It describes the layout of wires, devices, and routing paths. Essentially there are six different common topologies you should familiarize yourself with: Bus, Ring, Star, Extended Star, Hierarchical, and Mesh. In this paper, the recent development of six different common topologies are summarized. Introduction In communication networks, a topology is a usually schematic description of the arrangement of a network, including its nodes and connecting lines. There are two ways of defining network geometry: the physical topology and the logical (or signal) topology. Network topology is the layout of the connections of a computer network. Network topologies may be physical or logical. Physical topology means the physical design of a network including the locations, devices and cables. There are six basic topologies: Bus topology, Star topology, Ring topology, Tree topology, Mesh topology, and Hierarchical topology. Which of these is chosen rest with what devices need to be connected, how reliable it has to be, and the cost associated with cabling. In this paper, a review of the recent development of the above six different common topologies are provided. The development of six different common topologies Star Topology. A star topology is designed with each node connected directly to a central network hub, switch, or concentrator, shown in Figure 1. Fig.1 Star topology Before continuing transmit to its destination, data on a star network passes through the switch, hub or concentrator. All functions of the network is managed and controlled by the hub, switch or concentrator. Three star-shaped molecules were designed and synthesized by Nadzeya A. Kukhta et al. [1]. The obtained compounds are characterized by UV and fluorescence spectroscopies, thermogravimetric analysis, cyclic voltammetry, differential scanning calorimetry, and time-of-flight and CELIV techniques. In metropolitan network with different topologies which uses the link bandwidth efficiently and increases the capacity of the system [1]. Star-ring architecture with the cascade add/drop transceiver structure is proposed by Wen-Piao Lin et al. [1]. This new structure is used for subcarrier multiplexed PON with 118 optical network units (ONUs) at 2.2 km. The system consists of many concatenated ring subnets on the lower level with self-healing capabilities and a star network on the upper level. 4th International Conference on Computer, Mechatronics, Control and Electronic Engineering (ICCMCEE 2015) © 2015. The authors Published by Atlantis Press 1174 Ring Topology. In the ring network topology shown in Figure 2, the workstations are connected in a closed loop configuration. Adjacent pairs of workstations are directly connected. Other pairs of workstations are indirectly connected, the data passing through one or more intermediate nodes.