8-7
If the temperature inside the firewall exceeds 90°C (194°F) while the fans are working normally and
environment is well ventilated, contact your local sales agent.
For more information about the
display environment
command, refer to
H3C SecPath Series Security
Products User Manual
.
Troubleshooting Application Upgrade
Response Failure of the MPU Serial Port
Symptom
The MPU serial port gives no response.
Solution
Check that the cable is in good condition and the serial port settings are correct (bits per second is 9600
bps).
For more information about serial port settings, refer to the section talking about modifying serial
interface parameters in Chapter 6 “Maintaining Software.”
Troubleshooting TFTP Upgrading
Symptom
During application file upgrading through TFTP, the following problems are encountered:
z
Symptom 1: The CF card does not have enough space. The following information appears:
File will be transferred in binary mode
Downloading file from remote TFTP server, please wait...\
Failed to write data into storage device, maybe no enough space on device
z
Symptom 2: The file to be downloaded is not found. The following information appears:
File will be transferred in binary mode
Downloading file from remote TFTP server, please wait...
File not found.
z
Symptom 3: The configuration of the network port is incorrect. The following information appears:
Can't connect to the remote host