Mesh Topology
One of the more common topologies is the Mesh topology. The mesh topology is most commonly referred to as a Wide Area Network (WAN). (MicroTech Corp, 1998, Mesh) A Mesh topology involves multiple sites connected by multiple paths. Each site has a router that determines the best path for the data at that time. The best path is determined by least cost, time of day, and performance. (MicroTech Corp, Mesh) In Figure 1, the mesh topology is illustrated with lines indicating paths that data can follow. Each system has multiple paths to choose from.
Figure 1 Mesh Topology (Kathers, n.d., Mesh)
BUS Topology
With the BUS topology, as illustrated in Figure 2, workstations are connected by a long cable (Ethernet) or backbone. The cable or backbone never forms a close loop. The workstations are connected to the cable/backbone via cable drops and taps. BUS is a passive technology, meaning that the computers simply listen and receive signals. In a BUS topology, the backbone must be terminated. If there is no termination, or a break in the line before the termination, the network will go down.
Figure 2 BUS Topology (Kathers, n.d., BUS)
Ring Topology
In a Ring topology, each workstation is connected to two other workstations, which forms a loop. Data travels around the loop passing through each workstation. Each transmission is assigned a token, which contains the origination and destination information. This token is picked up and read by each workstation. If the workstation is not the destination, it will regenerate the token and pass the data back on to the loop. This process is repeated around the loop until the data reaches the destination. (MicroTech Corp, 1998, Ring)
Figure 3 Ring Topology (Kathers, n.d., Ring)
Star Topology
The Star topology is configured around a central switching or routing device, an intelligent hub, which receives and sends data to the appropriate recipient (see Figure 4). (MicroTech Corp, 1998, Star) The hub is an efficient, high-speed device that extends the capabilities of a simple cable. In the Star topology, each workstation is connected to one port on the hub. The Star topology is dominant in today's networks.
Figure 4 Star Topology (Kathers, n.d., Star)
The four different topologies mentioned have many advantages. The main advantages of each are listed below:
A bus is a communication system that connects multiple subsystems within a computer. An average computer system normally consists of several components such as a central processing unit, memory devices, and input/output (I/O) devices. The bus system consists of linking media like wires and connectors, and a bus protocol. Buses can be categorized as serial or parallel and synchronous or asynchronous. The bus lets the different components communicate with each other by allowing information to flow between units and devices.
“Network topology is the arrangement of the various network elements such as node, link, of computer network. Basically, it is topological structure of a network which ether be physically or logically.”
Point-to-Point routing system, unlike low-cost competitors that utilize hub-and-spoke system, partnering with larger airlines to provide connecting flights.
Token ring is a local area network protocol which resides at the data link layer (DLL) of the OSI model. It uses a special three-byte frame called a token that travels unidirectionally around a star-wired logical ring. Token ring frames travel completely around the loop. The name 'Token Ring' is misleading since the physical topology is a loop.
In a computer network, switches are devices that are used to connect devices together. Multiple cables can be connected to a switch to enable networked devices to communicate with each other. The role of a switch is to manage the flow of data throughout a network and this process is effective in its role due to the fact that the messages are sent only to the intended target. The media access control (MAC) is the identification that each device connected to the switch carries. By each device having individual IDs this increases the overall effectiveness and security of a network.
The Different Ways Organizations Can Be Structured and Operated There are four major ways a company - organization can be structured and operate. P.C.G (o) Ltd I would dare say that is structured and operates with the functional structure. In order to make it clear and understandable I am analyzing here below the four ways that organizations can structure and operate. We will observe that all four structures have there advantages and disadvantages. In order also to assist you understand better the differences of the four ways that organizations can be structured see in Page 4 & 5 Figures 1,2,3 which are the layout of the organization charts for each structure: 1.
According to Barsam and Monhan there are four main
The Jaagz’ local area network will use category 5 cable and run IEEE 802.3 protocol. Using IEEE 802.3, the network speed will average about 10 Mbps. It will utilize a combination of a star and bus topology, which is the most common topology used in networks. The bus topology makes up the backbone of the network while the star topology branches out.
Perhaps the most redundant, fault-tolerant of all network topologies is the mesh LAN. Each node is connected to every other node for a true point-to-point connection between every device on the network.
According to Henry Mintzberg, there are five basic types of configurations on which the structures of diferent organizations is based. Every organization is different and therefore requires a different and compatible structure to carry out its operations. These five configurations are as follows:
There are three different physical networks, all existing in the same building and crossing paths but not communicating to each other. The main focus was on the general data network which is represented by the red lines in figure 4.1.
My mobile phone network coverage allows me to make a call wherever I want, and the call is never cut off by the network. Independent surveys show that it has the best signal quality with excellent call clarity. The network covers 99 percent of the population, and it has installed more transmitters than any other digital network company. They guarantee that they work the best; in fact, they will even add a free minute of talk time if the call is ever lost. International and off-peak calls are the cheapest in the area. The company has been voted number 1 in customer satisfaction for 5 years in a row.
with the BT brand. As a well known business its aim is to place all UK
Mesh Topology The Mesh topology is true to its name in that there are multiple redundant interconnections between network nodes. A mesh network can employ one of two connection arrangements, full mesh or partial mesh. Full mesh topology is when each node is directly connected to every other node on the network. Partial mesh topology occurs when some nodes are connected to each other, but others are only connected to those with which they will exchange the most data.
People in the present society have turned from the use of the old means of communication to the more advanced and technological ways of communicating. Technology has made it easier for people to communicate in a faster, efficient, and cost saving means through the introduction of the communication channels. The world has turned out to be the centre for technology with different technologies emerging daily as the people continue to develop from time to time to cope with the growing technology. The benefits of adopting the communication technology are explained in this article which shows why people do not function without technology.