Muralidharan 1 COMPUTER NETWORKS - CS65 Department of EEE‚MEPCO Page 5 Page 6 PHYSICAL TOPOLOGY : Refers to the way in which a network is laid out physically. Two or more devices connect to a link; two or more links form a topology. A fully connected mesh topology (five devices) January 25‚ 2011 January 25‚ 2011 Page 7 Page 8 Advantages : • • • • A star topology connecting four stations Dedicated connection between a pair of computers guarantees the congestion
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that usually has the means to prevent echo-related problems. Twisted pair cables typically used in star topologies are not as immune to interferences as coxiale cable. A single device or cable failure will not bring down the network. Expensive because of additional cabling and central hub require. If the centralize device fails the entire system is affected. Ring topology is an active topology because each computer repeats (boosts) the signal before passing it on to the next computer. Adding additional
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© 2012‚ 2009‚ 2007 by University of Phoenix. All rights reserved. Course Description This foundational course covers local area network topics including rationale for networking‚ the open systems interconnection (OSI) model‚ common network topologies and architecture‚ client/server concepts‚ basic hardware devices and usage‚ and basic networking security concepts. Policies Faculty and students will be held responsible for understanding and adhering to all policies contained within the
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design ideas are a great resource to actually learn how to use any of the systems but they do give a pretty good idea. Cabling SpecificationsEthernet is a Local Area Network (LAN) technology with a transmission rate of 10 Mbps and has a typical star topology. Computers and devices must wait-and-listen for transmission time on the network as only one device can transmit at any one time. In order to operate with this network strategy‚ Ethernet incorporates CSMA/CD (Carrie Sense Multiple Access with Collision
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http://ebookbrowse.com/mphase-sensor-report-03-2009-pdf-d69770374. [15] . Energy harvesting for mobile eco-efficient wireless sensor networks. Industrial Systems Institute. 14 http://www.i3e.eu/innovation/i3e_swot /EnergyHarvesting_SWOT.pdf [16] ZigBee Topologies. Jennic and NXP Semiconductors. http://www.jennic.com/elearning/zigbee/files/html/module2/module2-1.htm [17] QuickPath Program to WirelessHART Compliance. E-Senza Technologies. March 2009. http://www.scribd.com/doc/52704453/QuickPath-Programto-WirelessHART-Compliance
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personal data Review of Current Network The current network is a fairly early design called an Ethernet Bus network. A bus network Topology is an architecture in which a set of clients are connected via a shared communications line‚ called a bus. Each of the 3 sites utilizes the same configuration of servers‚ workstations‚ standalone UPS and a 56k modem which are connected to an Ethernet backbone. Bus networks are difficult to troubleshoot because if the backbone goes down then every piece of hardware
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* The Network Topology * The type of networks needed * Security of Wireless Network * How optimization of WAN will improve the network * How to deploy Wireless LAN * The appliances that will secure the network * What wireless networking standard to use Network Topologies: This refers to layout of a network‚ how different nodes in the network are connected to each other and how they communicate. Examples of topologies commonly used are: 1. Mesh topology: This is simply
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not functioning at performance levels. What do you think are some possibilities for the cause of the problem? If making assumptions‚ please state what those assumptions are. What do you think would be possible solutions? Include a drawing of the topology that should be used and what types of networks you propose would work here and the accompanying justification. The problem to this scenario could be a number of things‚ but we are trying to fix at a small cost and like I have always been told start
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Taylor book Roll of Thunder Hear My Cry‚ Stacey had to show courage by the bus Trench‚ and T.J.’s cheat notes. Stacey is the oldest Logan kid‚ he feels that he is the man of the house when papa is at the railroad. Would you rather almost get ran over by a bus or would you do something about that would get you in trouble? Stacey had an plan to stop that bus from splashing them. “I’ll show y’all how we’re gonna stop that bus from splashing us.” Stacey knew that little man hated that he almost got run
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~ Star Topology ~ • A star topology is the most common type of topology. Used in homes and offices. This type of topology is where all of the computers and devices on the network connect to a central device‚ thus forming a star. The central device that provides a common connection point for nods and on the network is called a hub. • On a star network‚ if one of the node fails. Only that node is affected. The other nods continue to operate normally if the hub fails‚ however‚ the entire
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