IBM 8275, Руководство пользователя

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Chapter 6. Troubleshooting and Obtaining Service
Diagnosing Problems
This chapter contains procedures that help you to troubleshoot problems with your
8275-416 and its connections to other devices.
Be sure you read “Appendix A. Safety Information” on page 67 before proceeding.
Obtaining Software
To obtain support information, including technical tips, current product information,
and code updates and fixes the 8275-416 , visit the IBM Networking Tech Support
page at:
http://www.networking.ibm.com/support
You may also subscribe to receive e-mail notifications about code updates, tips, and
FAQs for your 8275-416 .
Troubleshooting in a Network
The 8275-416 terminal interface, Web interface, and SNMP management agent give
you access to important statistics and other information about the network. To
obtain these statistics, see “Chapter 4. Using the Terminal Interface” on page 25
and “Chapter 5. Using the Web Interface” on page 61 and select the appropriate
screens.
Start of Troubleshooting Process
If one or more devices (such as workstations) connected to an 8275-416 are unable
to communicate with other devices in the network, use the following steps to start
the troubleshooting process:
1. Locate the 8275-416 to which the device is connected. Use the network sketch,
the label on the cable connected to the device, or other network records to help
you locate the 8275-416 .
2. Have available any documentation associated with the feature modules that are
installed on the 8275-416 .
3. If you have an EIA 232 console session set up, ( see “Chapter 2. Accessing the
8275-416” on page 11), you can use it to determine if diagnostics have been
completed correctly.
4. Observe the LEDs on the 8275-416 front panel. The location of these LEDs is
shown in Figure 2 on page 6 with explanations of the LED status conditions in
the accompanying table. Ignore the feature module LEDs at this time. Review
this information before proceeding with the troubleshooting process.
5. If the LED status are not OK, locate in Table 4 on page 64, the symptom that
best describes the communication problem and the LED status you observed.
Then go the section that contains the recommended actions for resolving the
problem and follow that procedure.
© Copyright IBM Corp. 1999
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