Mesh, Bus, Ring and Star topologies The term Topology refers to the physical or logical shape or layout of a network. Communication between different nodes within a network is determined by its topology. Mesh, Bus, Ring and Star are four of the most common network topologies, each with advantages and disadvantages in relation to each other. 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 every other, but others are only connected to those with which they will exchange the most data. Mesh networks are reliable, stable, and redundant. If a node can no longer operate, all the others are not affected as they can still communicate either directly or through one or more intermediate nodes. Mesh networks can be very expensive due to the large amount of cable and connections required. Bus Topology Bus topology refers to a local area network (LAN) arrangement where each node or device is connected to a main cable or link called a bus. A bus network is simple yet very reliable. Since nodes themselves are not relied upon for communication, the failure of a single node is not problematic for the rest of the network. For a major issue to occur, there must be a problem with the bus itself. Despite its simplicity and reliability the bus network does have several limitations. The cable length of the bus is limited due to data loss. Also, a bus network may have performance issues if the nodes are located a... ... middle of paper ... ...IP Function? TCP/IP operates at both levels 3 and 4 of the OSI model. The TCP portion of TCP/IP operates at level 3 (Network) as its primary function is to control the flow of data. IP operates at level 4 (Transport) of the OSI model. IP is the protocol responsible for the actual transmission of packet across the network. What are the benefits of the OSI model? There are several advantages to the layered approach provided by the OSI model. With the design separated into smaller logical pieces, network design problems can be easier to solve through divide and conquer techniques. Vendors who follow the model will produce equipment that is much more likely to be compatible with equipment from other vendors. The OSI model also provides for more extensible network designs. New protocols and other network services are more easier added to a layered architect.
The method of communication over the FCIC II / CJ Net network is the same standard that has been used on the Internet, TCP/IP.
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.
IPv4 is the original internet addressing system. It is a protocol which was used on packet-switched networks. Delivery model is how it operates at its best without a guaranteed avoidance of duplicate in delivery or assurance of proper sequencing. Some aspects include data integrity which is mostly addressed by TCP. IPV4 uses binary notation to sort at time IP address that consist of 32 bits. It is a practice to convert the 32 bits of an IPv4 address into four 8 bit known as octets. With each octet converted to a decimal number (base 10) from (0–255) and parted by a period developed a format called dotted decimal notation. IPv4 has a category of address class types: Class A, B, C, D and E. The class A addresses are used for big networks and always start with zero bits. Each Class A address network can hold up as many as 16,777,216 hosts.
What does TCP mean? TCP is a set of rules that governs the delivery of data over the internet or other network that uses the Internet Protocol, and sets up a connection between the sending and receiving computers.
Wireless networks – While the term wireless network may technically be used to refer to any type of network that is wireless, the term is most commonly used to refer to a telecommunications network whose interconnection between nodes is implemented without the use of wires, such as a computer network. Wireless telecommunication networks are generally implemented with some type of remote information transmission system that uses electromagnetic waves, such as radio waves, for the carrier and this implementation usually takes place at the physical level or “layer” network.
IP – The Internet Protocol (IP) - is the method or protocol by which data is sent from one computer to another on the Internet. Each computer (known as a host) on the Internet has at least one IP address that uniquely identifies it from all other computers on the Internet.
Introduction The bus loosely defines as a digital path between resources and the processor of computer system. The bus provides an informational gateway or highway of wires, which allow binary signals to transmit to and from peripherals, memory, the central processing unit (CPU), and other components of a computer system. Due to these attributes, bus architecture divided into two major groups, frontside bus and peripheral bus. The frontside bus, also known as the system bus, facilitates all internal communication of binary signals from the CPU to memory and vice versa.
To attempt to define a network in a few sentences would be a fool’s errand. A network could be seen as simply a grid of interconnecting connections between multiple bodies. However when this vision is applied to real-world systems, they all start to differ. There is not anything that exists in the universe that is not part of a network. A network is the result of different parts or members which have similarities in parts of their identity. This similarity that they have in common, they will also have with other bodies forming a network between them. Most of these factors of identity are different from those of most others. As a result, each factor will be in common with different other members of different networks. Each factor includes this body in a multitude of networks. This means that no one thing is in one and only one network, but is included in many.
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.
VSAT networks have very few components, and the system operates independently once it is set up. Each network location uses an antenna and a modem to link to a satellite using radio frequency (RF) bandwidth and various protocols. VSAT networks can be arranged in a mesh topology configuration or a star topology configuration.
A bus is simply a circuit that connects one part of the motherboard to another. The more data a bus can handle at one time, the faster it allows information to travel. The speed of the bus, measured in megahertz (MHz), refers to how much data can move across the bus simultaneously. Bus speed usually refers to the speed of the front side bus (FSB), which connects the CPU to the northbridge. FSB speeds can range from 66 MHz to over 800 MHz. Since the CPU reaches the memory controller though the northbridge, FSB speed can dramatically affect a computer's performance. The faster a computer's bus speed, the faster it will operate -- to a point. A fast bus speed cannot make up for a slow processor or chipset. Here are some buses I will cover is this report:
A bus network is a network topology in which nodes are directly connected to a branched half-duplex link called a bus. A star topology is a topology for a Local Area Network in which all nodes are individually connected to a central connection point, like a hub or a switch. A star takes more cable, but the benefit is that if a cable fails, only one node will be brought down. Advantages of using a star topology include fast connection speed because each workstation has a dedicated cable, it will not slow down when many users are on-line and new workstations can be added without affecting the other workstations.
ErrealMedia (2010) Network standards OSI Reference Model; History of OSI Model; OSI Layers in Action http://www.erealmedia.com/cms125/
I have decided to research into Networking as my individual assignment for CP2099, because I am interested in setting up networks, as I already have set up my own small network at home. I also want to find out some of the advantages and disadvantages of the different types of networks.
Explain how the two important transport protocols deliver messages on behalf of the application and discuss the differences between them