Cisco 12010 series, Руководство по установке и настройке

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6-3
Cisco 12010, Cisco 12410, and Cisco 12810 Router Installation and Configuration Guide
OL-11496-01
Chapter 6 Router Field Diagnostics
Field-Programmable Gate Array Overview
Diagnostic testing stops when all of the tests are completed, are terminated by the
user, or by default if an error is encountered. If multiple cards are specified for the
test cycle, the diagnostics stop testing a card when it fails a test, but then continues
testing the remaining cards.
When testing is finished, a pass or fail message appears on the console, and on the
alphanumeric LED display on the card being tested.
Downloading the Diagnostic Image
Before you can use the diagnostic commands, you must download a valid
diagnostic image to a flash memory card installed in the router or to an TFTP boot
server.
Field diagnostic images are 10 to 18 MB in size, and Cisco IOS images are
slightly larger. One 64 MB flash memory card can store both images, or the
images can be stored individually on two 20 MB memory cards.
The name of the field diagnostic image is c12k-fdiagsbflc-mz and the latest
version is always available on Cisco.com. The image name is combined with the
Cisco IOS release number, for example: c12k-fdiagsbflc-mz 120-25.S
In this example, 120-25.S is the release number of the image that corresponds to
the Cisco IOS image: Cisco IOS Release 12.0(25)S.
Note
All Cisco field diagnostic images available on Cisco.com are compatible with
Cisco IOS Release 12.0(22)S and later. We recommend that you use the latest
available diagnostic image for testing and verifying line cards.
Field-Programmable Gate Array Overview
Some Cisco 12000 series line cards store hardware information as software code
in the form of a field-programmable gate array, or FPGA. This code is
permanently placed in flash memory on the line card. Occasionally, this flash
memory code must be updated with new FPGA code containing feature
enhancements or code improvements.