GE Grid Solutions
D25
User's Manual
GE Information
994-0081-3.00-21
147
LAN-Based Problems
Overview
Several failure cases are possible in the BootP initialization sequence.
Under fault conditions such as loss of one or more devices, the system will
continue to operate at whatever level of service is possible — even without
LAN address, code, and configuration servers.
Notes
•
BootP request time-out is factory set to 2 seconds.
•
The default time-out is 5 seconds.
Symptom
Possible Causes
Suggestions
No response to
repeated BootP
request
BootP client times out without a valid
response.
Invalid code and/or configuration
Increase communication
timeout. Verify BootP
configuration
Null file name for the
Boot file appears in the
BootP response
BootP server either does not have a Boot
File for the device or does not support
TFTP read requests
Use WESMAINT II+ to
view the error message.
Invalid information in
the BootP response
BootP server does not have correct
information available for the client.
Either the system has not been
completely configured, or the BootP
server has suffered data loss or
corruption.
Use WESMAINT II+ to
view the error message.
Late response to
BootP requests
Invalid information for the Boot File
Use WESMAINT II+ to
view the error message.
Time Out
System waiting for a data block within a
file transfer
Verify communication
setup
Checksum Error
File download time-out
Verify communication
setup, file integrity
Run Time Behavior
File name received in a write request is
not the Boot File
Verify BootP configuration
Database Tables
Created or Modified
File name received in a write request is
not the Boot File
Verify BootP configuration
Diagnostics display
locally only
Internal hardware verification failure
Remote Display
Failure
LAN stack and diagnostic interface failure
Time-out
LAN address acquisition failed.
Boot File Acquisition failure
Verify that code and
configuration are the
correct versions.
User Processing Halts
Restart sequence fails to verify address,
boot file, code, and configuration
Load updated files for the
restart sequence.
Restart Sequence
Failure
Address, boot file, code, and/or
configuration verification failure
Load updated files for the
restart sequence.
Boot File Acquisition
Failure
System times out
Verify communication
setup
Code / Configuration
File Acquisition Failure
iSCS device requires code or
configuration
Load updated files for the
restart sequence.
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