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Password loss, Cooling system failures, Symptom – H3C Technologies H3C SecPath F5000-A5 Firewall User Manual

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1.

Make sure the AUX port is operating in flow mode.

2.

Power off the firewall, connect the RJ-45 connector of the console cable to the AUX port, and then
connect the DB-9 (female) connector to the serial port of the configuration terminal.

3.

Power on the firewall.

NOTE:

Username and password are required for AUX port login and the user level should be specified.

The AUX port can operate in flow or protocol mode, but must be operating in flow mode to be used as
a backup for the console port.

By default, the AUX port operates in flow mode.

Use the async mod { flow | protocol } command to switch between the flow mode and the protocol
mode. For more information, see the firewall command references.

Password loss

For troubleshooting console login password loss and user privilege level password loss, see H3C SecPath
Series Firewalls and UTM Devices System Management and Maintenance Configuration Guide
.

Cooling system failures

Symptom

When the temperature inside the firewall exceeds 75°C (167°F), the following information appears on
the configuration terminal:

%May 14 21:37:35:271 2007 H3C DRVMSG/3/Temp2High:

Environment temperature too high in Slot 0, index is 2.

#May 14 21:37:35:713 2007 H3C DEV/1/BOARD TEMPERATURE UPPER:

Trap 1.3.6.1.4.1.2011.2.23.1.12.1.16: frame Index is 0, slot

Index 0.0

%May 14 21:37:35:713 2007 H3C DEV/4/BOARD TEMP TOOHIGH:

Board temperature is too high on Frame 0 Slot 0, type is MPU.

The output shows that the temperature inside the firewall has exceeded the upper threshold 75°C (167°F).
In this case, the fans of the firewall rotate at full speed.

Generally, after the fans rotate at full speed for certain time, the temperature inside the firewall will drop
down below 75°C (167°F), and the following information appears on the configuration terminal:

%May 14 22:25:17:804 2007 H3C DRVMSG/3/TempHOK:

Environment temperature recovered from OT in Slot 0, index is 2.

#May 14 22:25:18:713 2007 H3C DEV/1/BOARD TEMPERATURE NORMAL:

Trap 1.3.6.1.4.1.2011.2.23.1.12.1.17: fr

ameIndex is 0, slotIndex 0.0