3troubleshootingjunos
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Troubleshooting JUNOS Platforms
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Best-Practic |
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comm ndations made by JTAC. Can you provide insight as to how the |
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various configuration stanzas can help you when performing fault analysis? |
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Troubleshooting Tool Kit for JUNOS Platforms • Chapter 3–75
Troubleshooting JUNOS Platforms
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Best-Practices Case Study: Part 2 |
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Chapter 3–76 • Troubleshooting Tool Kit for JUNOS Platforms
Troubleshooting JUNOS Platforms
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This Chapt |
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Warnings and caveats regarding potentially disruptive commands and |
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A layered troubleshooting methodology; |
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Various troubleshooting tools supported by JUNOS Software; and |
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JTAC recommended configuration settings for ease of troubleshooting. |
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Troubleshooting Tool Kit for JUNOS Platforms • Chapter 3–77
Troubleshooting JUNOS Platforms
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Chapter 3–78 • Troubleshooting Tool Kit for JUNOS Platforms
Troubleshooting JUNOS Platforms
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Lab 1: JUNOS Troubl shooting Tools |
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Troubleshooting Tool Kit for JUNOS Platforms • Chapter 3–79
Troubleshooting JUNOS Platforms
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Chapter 3–80 • Troubleshooting Tool Kit for JUNOS Platforms
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Troubleshooting JUNOS Platforms |
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Chapter 4: JUNOS Platforms Hardware |
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Troubleshooting |
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Troubleshooting JUNOS Platforms
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This Chapter Discuss s: |
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An overvi w of hardware troubleshooting tools; |
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Power on, power off, and boot media options; |
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T oubleshooting based visual indicators; |
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T oubleshooting based on the JUNOS Software command-line interface |
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(CLI); and |
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Parsing log files for indications of hardware problems. |
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Chapter 4–2 • JUNOS Platforms Hardware Troubleshooting
Troubleshooting JUNOS Platforms
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Hardware Troubl shooting Overview |
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JUNOS Platforms Hardware Troubleshooting • Chapter 4–3
Troubleshooting JUNOS Platforms
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Troubleshoot ReproductionUsing the Craft Interface
You can use the Craft Int rface to troubleshoot chassis problems. Some Juniper Networks platforms use LEDs the Craft Interface to indicate the status of various chassis components. The M40e, M320, T320, T640, and TX Matrix platforms use the LCD to display general system status and a listing of any alarms that are currently
foractive.
Tr ublesh t Using the CLI and J-Web
The primary means of controlling and troubleshooting JUNOS Software, routing protocols, network connectivity, and the hardware is to execute various operational mode commands from the CLI. The CLI provides commands that let you display the status of the various hardware components and monitor the log files. Also, you could use the J-Web to monitor, diagnose, and analyze hardware problems.
Troubleshoot Using Syslog Messages
The various system logs maintained by JUNOS Software and the various processes that run on top of the JUNOS kernel contain a wealth of information regarding the operational status of a given system. The information stored in system logs is normally more detailed than that displayed on the Craft Interface. Do not forget to leverage the CLI pipe function to simplify the task of parsing through large log files for symptoms of abnormal operation or hardware failure.
Chapter 4–4 • JUNOS Platforms Hardware Troubleshooting