Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering...
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Transcript of Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering...
![Page 1: Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering De Lin Institute of Technology andres@dlit.edu.tw.](https://reader035.fdocuments.in/reader035/viewer/2022072006/56649f455503460f94c67841/html5/thumbnails/1.jpg)
Chap 13 Network Chap 13 Network TroubleshootingTroubleshooting
Andres, Wen-Yuan Liao
Department of Computer Science and Engineering
De Lin Institute of Technology
http://www.cse.dlit.edu.tw/~andres
![Page 2: Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering De Lin Institute of Technology andres@dlit.edu.tw.](https://reader035.fdocuments.in/reader035/viewer/2022072006/56649f455503460f94c67841/html5/thumbnails/2.jpg)
![Page 3: Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering De Lin Institute of Technology andres@dlit.edu.tw.](https://reader035.fdocuments.in/reader035/viewer/2022072006/56649f455503460f94c67841/html5/thumbnails/3.jpg)
Troubleshooting NetworkTroubleshooting Network
Describe typical layer 1 errors Typical layer 2 errors Typical layer 3 errors Network troubleshooting
strategies
![Page 4: Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering De Lin Institute of Technology andres@dlit.edu.tw.](https://reader035.fdocuments.in/reader035/viewer/2022072006/56649f455503460f94c67841/html5/thumbnails/4.jpg)
Problems in each layerProblems in each layer
Layer 1 - incorrect cable used Layer 2 - interface not
configured for Ethernet Layer 3 - subnet mask is
incorrect
![Page 5: Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering De Lin Institute of Technology andres@dlit.edu.tw.](https://reader035.fdocuments.in/reader035/viewer/2022072006/56649f455503460f94c67841/html5/thumbnails/5.jpg)
Describe typical layer 1 errorsDescribe typical layer 1 errors
Broken cables Disconnected cables Cables connected to the wrong
ports Intermittent cable connectionDevices turned off
![Page 6: Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering De Lin Institute of Technology andres@dlit.edu.tw.](https://reader035.fdocuments.in/reader035/viewer/2022072006/56649f455503460f94c67841/html5/thumbnails/6.jpg)
Describe typical layer 1 errorsDescribe typical layer 1 errors
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
![Page 7: Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering De Lin Institute of Technology andres@dlit.edu.tw.](https://reader035.fdocuments.in/reader035/viewer/2022072006/56649f455503460f94c67841/html5/thumbnails/7.jpg)
Typical layer 2 errorsTypical layer 2 errors
Improperly configured serial interf. Improperly configured Ethernet interfa
ces Improper encapsulation set (HDLC is
default for serial interfaces) Improper clockrate settings on serial i
nterfaces
![Page 8: Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering De Lin Institute of Technology andres@dlit.edu.tw.](https://reader035.fdocuments.in/reader035/viewer/2022072006/56649f455503460f94c67841/html5/thumbnails/8.jpg)
Typical layer 3 errorsTypical layer 3 errors
Routing protocol not enabled Wrong routing protocol
enabled Incorrect IP addresses Incorrect Subnet Masks Incorrect DNS to IP bindings
![Page 9: Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering De Lin Institute of Technology andres@dlit.edu.tw.](https://reader035.fdocuments.in/reader035/viewer/2022072006/56649f455503460f94c67841/html5/thumbnails/9.jpg)
![Page 10: Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering De Lin Institute of Technology andres@dlit.edu.tw.](https://reader035.fdocuments.in/reader035/viewer/2022072006/56649f455503460f94c67841/html5/thumbnails/10.jpg)
![Page 11: Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering De Lin Institute of Technology andres@dlit.edu.tw.](https://reader035.fdocuments.in/reader035/viewer/2022072006/56649f455503460f94c67841/html5/thumbnails/11.jpg)
![Page 12: Chap 13 Network Troubleshooting Andres, Wen-Yuan Liao Department of Computer Science and Engineering De Lin Institute of Technology andres@dlit.edu.tw.](https://reader035.fdocuments.in/reader035/viewer/2022072006/56649f455503460f94c67841/html5/thumbnails/12.jpg)
SummarySummary Layer 1 errors Layer 2 errors Layer 3 errors Network Problems