Name: 1. List the three layers of a typical hierarchical design model : Access‚ Distribution‚ Core . 2. Describe the characteristics and the main purpose of the Access Layer: Interface with end devices to provide access to the rest of the network. Is to provide a means of connecting devices to the network and controlling which devices are allowed to communicate on the network. 3. Describe the characteristics and the main purpose of the Distribution Layer: Controls the flow of network traffic using
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NETWORK TOPOLOGIES PRESENTED BY Alex Daniel Manjula Sanjana NandaKumar Sher Mohammed Babul Sriram Vamsi Vinodhini © 2013 Maveric Systems Limited WHAT IS A TOPOLOGY ? © 2013 Maveric Systems Limited WHAT IS A TOPOLOGY ? ▸ In computer networking‚ topology refers to the layout of connected devices. ▸ Network topologies describe the ways in which the elements of a network are mapped. They describe the physical and logical arrangement of the network nodes. ▸ Topology can also be defined as the
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Bus Topology http://compnetworking.about.com/od/networkdesign/a/topologies.htm http://fallsconnect.com/topology.htm Bus topology Bus topology refers to a single cable that connects all the workstations‚ servers‚ printers and other devices on the network. The cable runs from device to device by using tee connectors that plug into the network adapter cards. Each end device has a terminator on one end of the tee and a cable going out to the next device on the other end‚ while all devices in the
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Topology Diagram Topology Name Logical Characteristics Physical Characteristics Star Data passes through the hub to reach other devices on the network. Several devices having its own cable that connects to a central hub‚ or sometimes a switch‚ or even a Multi-station Access Unit (MAU). Data passes through the hub to reach other devices on the network. Ring Information is passed from one computer to another in either clock-wise direction or counter clock-wise direction and
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Hierarchical Star Many home networks use the star topology. A star network features a central connection point called a "hub" that may be a hub‚ switch or router. Devices usually connect to the hub with Unshielded Twisted Pair Strengths Easy to Install‚ Flexible IF single device or cable failure will not bring down the network Weakness If the centralize device fails the entire system is affected Bus Bus is the simplest network topology. All computers are connected to a single cable that
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Structured Cabling Technology and Market Assessment January 13‚ 2013 When we started researching the structured cabling market a few months ago‚ it seemed like not much had changed in the past three years. Some of the individuals we interviewed for this report thought so‚ too. But as it turns out‚ there have been many changes to the market. The recession reduced investment‚ led to the cancellation of many projects‚ and those that continued worked under reduced budgets. This‚ in addition to changes
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extended star topologies The star topology is the most commonly used physical technology in Ethernets LANS‚ when installed ‚ the star topology resembles spokes I n a bicycle wheel. The star topology is made up of a central connection point that is a device such as a hub‚ switch‚ or router‚ where all the cabling segments meet. Each host in the network is connected to the central devices (switches) with its own cables (we are using Fiber Optic Cable) although a physical star topology costs more to
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To make this initiative a success‚ Kudler Fine Foods‚ must pay for a major technology upgrade in order to successfully service the number of customers that join the Kudler Fine Foods frequent shopper program. As detailed in the Kudler Fine Foods intranet‚ Kudler currently uses outdated software and hardware. Novell 4.11 Server‚ as well as Windows versions prior to XP are not supported or maintained any more. Additionally the use of dial-up Internet access with a 56K modem would be upgraded to broadband
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Network Topologies Network topologies are an important part of the network. Without the proper topology‚ the network may not meet the needs of the organization. The layout of a network is referred to as the topology. How nodes in a network are connected to each other and communicate is determined by the topology. There are three basic topologies with several typical variations‚ or combinations. A description of four topologies follows. Mesh Topology Mesh topology is the first topology discussed
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Existing CAT3 complaint systems could also support fast Ethernet 124 ATM Designed to use high-speed communication protocols that does not depend on any specific LAN topology 130 NFPA Sponsors NEC (national electrical Code) 136 Article 250 Covers Grounding 148 Something in the "WARNING" Whether you can leave wire in the system? Much of this cabling id old CAT1 and CAT3 type cables‚ some of ir with inadequate flame rating 172 Know what a Patch Panel looks like 182 Kevlar scissors For fiber-optic cables
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