Cisco Systems 3750E Manual De Usuario
45-26
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02
Chapter 45 Troubleshooting
Using On-Board Failure Logging
file is created, you can use the rename privileged EXEC command to rename it, but the contents of the
renamed file will not be displayed by the show stacks or the show tech-support privileged EXEC
command. You can delete crashinfo files by using the delete privileged EXEC command.
renamed file will not be displayed by the show stacks or the show tech-support privileged EXEC
command. You can delete crashinfo files by using the delete privileged EXEC command.
You can display the most recent basic crashinfo file (that is, the file with the highest sequence number
at the end of its filename) by entering the show stacks or the show tech-support privileged EXEC
command. You also can access the file by using any command that can copy or display files, such as the
more or the copy privileged EXEC command.
at the end of its filename) by entering the show stacks or the show tech-support privileged EXEC
command. You also can access the file by using any command that can copy or display files, such as the
more or the copy privileged EXEC command.
Extended crashinfo Files
The switch creates the extended crashinfo file when the system is failing. The information in the
extended file includes additional information that can help determine the cause of the switch failure. You
provide this information to the Cisco technical support representative by manually accessing the file and
using the more or the copy privileged EXEC command.
extended file includes additional information that can help determine the cause of the switch failure. You
provide this information to the Cisco technical support representative by manually accessing the file and
using the more or the copy privileged EXEC command.
Extended crashinfo files are kept in this directory on the flash file system:
flash:/crashinfo_ext/.
The filenames are crashinfo_ext_n where n is a sequence number.
You can configure the switch to not create the extended creashinfo file by using the no exception
crashinfo global configuration command.
crashinfo global configuration command.
Using On-Board Failure Logging
You can use the on-board-failure logging (OBFL) feature to collect information about the switch and the
field-replaceable unit (FRU) devices that are connected to it. The information includes uptime,
temperature, and voltage information and helps Cisco technical support representatives to troubleshoot
switch problems. We recommend that you keep OBFL enabled and do not erase the data stored in the
flash memory.
field-replaceable unit (FRU) devices that are connected to it. The information includes uptime,
temperature, and voltage information and helps Cisco technical support representatives to troubleshoot
switch problems. We recommend that you keep OBFL enabled and do not erase the data stored in the
flash memory.
This section has this information:
•
•
•
Understanding OBFL
By default, OBFL is enabled. It collects information about the switch and the FRU devices, including
power supplies, redundant power systems, and small form-factor pluggable (SFP) modules. The switch
stores this information in the flash memory:
power supplies, redundant power systems, and small form-factor pluggable (SFP) modules. The switch
stores this information in the flash memory:
•
CLI commands—Record of the OBFL CLI commands that are entered on a standalone switch or a
switch stack member
switch stack member
•
Environment data—Unique device identifier (UDI) information for a standalone switch or a stack
member and for all the connected FRU devices: the product identification (PID), the version
identification (VID), and the serial number
member and for all the connected FRU devices: the product identification (PID), the version
identification (VID), and the serial number
•
Message—Record of the hardware-related system messages generated by a standalone switch or a
stack member
stack member