S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
4-23
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Chapter 4 Troubleshooting Hardware
Troubleshooting Switching and Services Modules
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show version
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show logging
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show module internal exception-log
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show module internal event-history module
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show module internal event-history errors
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show platform internal event-history errors
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show platform internal event-history module
Module Bootup
When a module is inserted into the switch, the supervisor puts the module in powered-up state. In this
state, the supervisor waits for the module to boot and send its identification to the active supervisor.
If the supervisor does not receive the registration from the module within a given time frame, it power
cycles the module. This failure is called a boot-up failure. The failure codes for boot-up failure can be
obtained using the
show platform internal event-history errors
CLI command. (See
Example 4-15
.)
Example 4-15 Finding Boot-Up Failure Codes
switch# show platform internal event-history errors
The following error codes are defined
No Boot Device = 0xF1
Boot Failed = 0xC0
Net Boot Failed = 0xD0
Unknown Status = 0x1B
Image Download
Once the supervisor receives the registration message, it checks the image compatibility matrix. The
image compatibility determines whether or not the version of code running on the supervisor is
compatible with the version of code running on the module. If the versions do not match, the module
downloads an updated version of the code, reboots, and sends a registration message again with the
updated parameters.
If the module is unable to download the code, the supervisor generates the following system message:
Error Message
MODULE-2-MOD_DNLD_FAIL: Image download failed for module [dec].
Explanation
The module failed to download a new image from the supervisor module.
Recommended Action
Collect module information by entering the
show module internal all module
<
dec
>
command.
