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Assignment on Internet-working and Troubleshooting

   

Added on  2020-04-15

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INTERNET-WORKING 1Internet-workingNameDate
Assignment on Internet-working and Troubleshooting_1
INTERNET-WORKING 2Troubleshooting the Physical Network layerThis is the physical layer of the DARPA network architecture and was designed to be independent of method used to access the network. When there is no data transfer, this layer is always likely the problem and can be troubleshot using network monitoring tools and techniques such as pinging to see if there is communication with another target. Further, network monitoring tools will show if there is data and communication within the network. Just by viewing connection details on the networking console of a computer, one will see if data is being transported or not and then initiate remedial measures. The Ping tool is excellent for troubleshooting problems within this layer because the common problems are due to routing and addressing. Pinging the loop-back address will provide information if the IP is properly configured and is working (Mudracola, 2016). Investigating blunders at this level incorporate utilizing link testing devices to guarantee cabling is working appropriately. Connection lights on arrange gadgets are additionally an extraordinary approach to investigate issues at Layer 1. On the off chance that the connection light is green, at thatpoint Layer 1 is working. In the event that the connection light is another shading or not illuminating by any stretch of the imagination, at that point there is an issue at this layer. Simple approaches to test this are swapping out links with a working link, swapping SFPs, or modules, and utilizing link testingTroubleshooting the Internet LayerThis layer plays the role of addressing, routing, and packaging. When there is a problem in this layer, it is likely the cause is due to one of its three listed functions ( addressing, routing, and packaging). It can be troubleshot to solve problems by first checking the IP addressing table and theMAC addressing tables. By viewing the logs from the ICMP (Internet control message protocol), one can see any error messages of undelivered packets and resolve this through addressing and routing. Using a tool like WireShark or other network monitoring tools can help in troubleshooting the layers’ problems. The route tool and the Tracert are some of the tools that can be used for trouble shooting this layer (Davies, 2006)Troubleshooting the Transport LayerThis layer is responsible for giving the application layer datagram and communication services. Problems with this layer can be solved using packet and session tracer tools to monitor activity. Most problems in this layer are mainly because of blocked ports and one area to look at is the firewall and the firewall access lists that are blocking TCP/ UPD ports. The next area to check is
Assignment on Internet-working and Troubleshooting_2

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