Running Diagnostics on the
Cisco 12012
Field diagnostics are available for the Cisco 12012 GSR to help you isolate faulty hardware
to the level of a field-replaceable unit (FRU) without disrupting the operation of the system.
After you identify the faulty unit, you can replace it with a spare unit.
Field diagnostics are not designed to identify specific components within the router. They
simply determine whether a particular card is operational or defective.
Running Diagnostics on the Cisco 12012 GSR is presented in the following sections:
•
Diagnostic Test Overview on page 1
•
Using the diag Command on page 3
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Diagnostic Testing Sequence on page 4
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Loading and Running Diagnostics on page 4
Diagnostic Test Overview
There are more than a hundred diagnostic tests for line cards, including the following:
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Processor tests
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Memory tests
•
Component tests
•
Major data path tests
The field diagnostics software image is bundled with the Cisco IOS software and is
downloaded from the route processor (RP) to the target card before testing.
C H A P T E R
Running Diagnostics on the Cisco 12012 6-1
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