Week 3 - Topologies - Team D
Week 3 - Topologies - Team D
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Date Created: 11/11/15
Network Topologies Running header NETWORK TOPOLOGIES Network topologies at Huffman Trucking Team D Will Mason Paul Bropleh II Detricia Coardes Christopher Reese and Michelle Walker University of Phoenix NTC 360 Stephen Omogbehin February 11 2007 Network Topologies 2 Network topologies of Huffman Trucking When implementing a network a person must understand where all of the components are placed in the proposed network Understanding the topology or layout of the network is important in providing a solid network base A topology is defined according to Tomsho et al 2004 as the basic physical layout of a networ p 619 However how the nodes on the network communicate with each other is known as a topology as well this is known as the network s logical topology Huffman Trucking incorporates different topologies in its corporate network for example the topologies that exist at the different sites include Token Ring topology star topology and bus topology The different topologies allow the different nodes on the network at each site to communicate through the physical components that compose the overall network Bus Topology The bus topology is by far the simplest and at one time was the most common method of connecting computers Tomsho et al 2004 p 49 A single cable segment connects all nodes of the network this is known as the network s backbone and is the major aw of this topology The networks in Huffman Trucking that employ the use of the bus topology include the Los Angeles office network and the New Jersey office network The advantages of the bus topology include its 1 simplicity and reliability 2 inexpensive cabling that is easy to work with and extend and 3 uses cable economically because all nodes are arranged in a line A hub or patch panel is often used to connect all of the network nodes however hubs and patch panels do not possess the ability to route the traffic to Network Topologies 3 the proper node Hubs only strengthen the signal and move the signal onto the rest of the network The disadvantages of using a bus topology are 1 heavy traffic negatively impacts network throughput 2 a problem with any cable halts network traffic and 3 problems on the network are often difficult to isolate The hub topology is one of the oldest and most reliable yet the topology is not ideal for a busy networking environment Ring topology The next network topology of which the entire Cleveland network office and plant and the entire St Louis network office and plant use is the ring topology The advantages of the ring topology include the fact that equal access is available to all nodes and steady network performance The disadvantages outweigh the benefits and include 1 network outage caused by single computer 2 difficulty isolating network problems and 3 adding and removing computers disrupts network operations Star topology The need for the centralization of network information on servers led to the advent of the star topology Clientserver architectures benefit most from this type of topology because of the centralization of network resources The star topology is the most popular because it is easy to add new computers or modify the network Tomsho et al 2004 p 61 In addition network monitoring and management benefits from the centralization of network resources Finally a network outage is not caused by the failure of a single computer or cable on the network Implementing a star topology requires more cable this can add to the cost of upgrading the network The centralization of resources is also a disadvantage because if a hub or switch fails the entire network fails Network Topologies 4 Combining topologies Compromising the network Given that Huffman Trucking uses different types of networks the communications throughput is compromised because of the disadvantages that such a disparate network brings to network nodes and resources For example the use of a star topology in the Los Angeles plant may improve network speed however the office uses a bus topology thereby seriously compromising network speed The prior example explains the need for Huffman Trucking to convert its network Recommendations With the extensive research into the various topologies Delta 360 recommends the transition of the different sites over to the star topology The addition of more network nodes will not disrupt the network and maintenance is simple Fault tolerance is placed on such a topology to ensure that the nodes are properly routed in the case of an outage In addition two of the sites already implement the star topology which makes upgrades as easy as replacing cabling and replacing hubs with switches and routers Switches and improving the network References Network Topologies 5 Tomsho G Tittel E amp Johnson D 2004 Guide to Networking Essentials 4th Ed Retrieved from the University of Phoenix Week One Resource NTC360 Network and Telecommunications Concepts Website httpsecampusphoenixedusecureresourceresourceasp
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