sem 2 chapter 13 troubleshooting the network. examples of problems in each layer might include: ...
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![Page 1: Sem 2 Chapter 13 Troubleshooting the Network. Examples of problems in each layer might include: Layer 1 - incorrect cable used Layer 2 - interface](https://reader035.vdocuments.site/reader035/viewer/2022072006/56649f455503460f94c67834/html5/thumbnails/1.jpg)
Sem 2
Chapter 13
Troubleshooting the Network
![Page 2: Sem 2 Chapter 13 Troubleshooting the Network. Examples of problems in each layer might include: Layer 1 - incorrect cable used Layer 2 - interface](https://reader035.vdocuments.site/reader035/viewer/2022072006/56649f455503460f94c67834/html5/thumbnails/2.jpg)
Examples of problems in each layer might include:
Layer 1 - incorrect cable used
Layer 2 - interface not configured for Ethernet
Layer 3 - subnet mask is incorrect
![Page 3: Sem 2 Chapter 13 Troubleshooting the Network. Examples of problems in each layer might include: Layer 1 - incorrect cable used Layer 2 - interface](https://reader035.vdocuments.site/reader035/viewer/2022072006/56649f455503460f94c67834/html5/thumbnails/3.jpg)
Layer 1 errors include:
broken cables
disconnected cables
cables connected to the wrong ports
intermittent cable connection
wrong cables used for the task at hand (must use rollovers, cross-connects, and straight-through cables correctly)
transceiver problems
DCE cable problems
DTE cable problems
devices turned off
![Page 4: Sem 2 Chapter 13 Troubleshooting the Network. Examples of problems in each layer might include: Layer 1 - incorrect cable used Layer 2 - interface](https://reader035.vdocuments.site/reader035/viewer/2022072006/56649f455503460f94c67834/html5/thumbnails/4.jpg)
Layer 2 errors include:
improperly configured serial interfaces
improperly configured Ethernet interfaces
improper encapsulation set (HDLC is default for serial interfaces)
improper clockrate settings on serial interfaces
![Page 5: Sem 2 Chapter 13 Troubleshooting the Network. Examples of problems in each layer might include: Layer 1 - incorrect cable used Layer 2 - interface](https://reader035.vdocuments.site/reader035/viewer/2022072006/56649f455503460f94c67834/html5/thumbnails/5.jpg)
Layer 3 errors include:
routing protocol not enabled
wrong routing protocol enabled
incorrect IP addresses
incorrect Subnet Masks
incorrect DNS to IP bindings