Troubleshooting guide

3. Troubleshooting Functional Failures During Operation
22
No. Items to check and
commands
Items to check
2 Try to execute the show
critical-logging
command.
 When FROM write fail
[cnt=xxxxxxxx,size=xxxxxxxx,err=xxxxxxxx] is obtained,
execute the restore operation command again. If an error still
occurs, the internal flash memory might be corrupted. Replace the
Switch.
(2) When the restore command is executed on a restore from a AX1250S series
Switch:
Table 3-8 Problems occurring while using the restore command and action to take
[AX1250S]
No. Items to check and
commands
Items to check
1 Check the response
message to the
command.
When Restore operation failed. is displayed,
 If no-software is specified for the backup operation command,
no-software must be specified for the restore operation
command as well.
 If software for an AX1240S or AX1230S switch is contained in the
backup file, Switch information other than the software is restored.
 A backup file created by using the backup operation command with
the AX1230 option specified is created as the Switch information, but
without the software. To include software for AX1250S switches,
create a backup file without specifying any options.
 Check the backup file, and then execute the restore operation
command again.
 If an error still occurs, the backup file might be corrupted.
For all other cases, see No. 2.
2 Try to execute the show
critical-logging
command.
 When FROM write fail
[cnt=xxxxxxxx,size=xxxxxxxx,err=xxxxxxxx] is obtained,
execute the restore operation command again. If an error still
occurs, the internal flash memory might be corrupted. Replace the
Switch.
(3) When the restore operation command is executed on a restore from a
AX1240S series switch:
Table 3-9 Problems occurring while using the restore operation command and action to
take [AX1240S]
No. Items to check and
commands
Items to check
1 Check the response
message to the
command.
When Restore operation failed. is displayed,
Check the hardware revision number by using the show version
command.
 If the hardware revision is shown as 1 or 9, proceed to No. 2.
 For other cases, go to No. 3.
2 If the hardware revision is
shown as 1 or 9
The normal procedure cannot be used to restore a backup file containing
software prior to Ver. 2.4.
See the Software Update Guide to update the Switch to Ver. 2.4 or later.
Then, execute the restore operation command again with the backup
file for that prior to the Ver. 2.4 software.