H3C Technologies H3C SecPath F5000-A5 Firewall - Manual (Page 87)

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%May 14 22:25:18:713 2007 H3C DEV/4/BOARD TEMP NORMAL:
Board temperature changes to normal on Frame 0 Slot 0, type is MPU.
The output shows that the operating temperature of the firewall restores to normal state.
When exceptions occur, the temperature inside the firewall might exceed 90°C (194°F), in which case the
following information appears on the configuration terminal:
%Jun 25 14:38:45:444 2007 H3C DRVMSG/3/TempCritical:
CPU temperature critical in Slot 3, index is 1.
At the same time, the ALM LED of the MPU turns red, indicating that the temperature inside the firewall
is abnormal.
Solution
1. Verify that the fans are operating correctly.
2. Verify that the working environment of the firewall is well ventilated.
3. Use the display environment command to examine whether the temperature inside the firewall is
rising.
When the fans are running normally and the working environment is well ventilated, if the temperature
inside the firewall exceeds 90°C (194°F), power off the firewall immediately and contact your local sales
agent.
For more information about the display environment command, see the firewall command references.
Software upgrade failures
No response from the serial port of the MPU
Symptom
No boot information is displayed on the configuration terminal when the MPU starts up.
Solution
Verify that the cable is in good condition and the serial port properties are correct (the Bits per second
field is set to 9600 bps).
Failure to upgrade through TFTP
Symptom
Start the firewall, and upgrade the software through TFTP. The following problems might occur:
• Symptom 1: The CF card has no enough space.
File will be transferred in binary mode
Downloading file from remote TFTP server, please wait...\