H3C Technologies H3C SR6600-X - Manual (Page 81)

71
To troubleshoot the cooling system failure:
1. Check whether the fans are running properly.
2. Check whether the working environment of the module is well ventilated.
3. Use the display environment command to check whether the temperature in the module keeps
rising.
4. If the temperature inside the module still reaches the critical temperature threshold, power off the
router immediately and contact your local sales agent.
NOTE:
For more information about the display environment command, see H3C SR6600 Router Series
Fundamentals Command Reference.
Interface module, cable, and connection failure
After an HIM/MIM is installed and the router is powered on, the LEDs on the HIM/MIM panel may
indicate abnormal operation.
To solve this problem:
1. Check whether the HIM/MIM cable is correctly selected.
2. Check whether the HIM/MIM cable is correctly connected.
3. Use the display command to check whether the interface of the interface module has been
correctly configured and is working properly.
Software upgrade failures
No response from the serial port
The serial port gives no response.
To solve the problem, check whether the serial port settings are correct (whether the Bits per second field
is set to 9600 kbps).
NOTE:
For more information about the serial port settings, see “ Setting terminal parameters .”
TFTP upgrade failure
Start the router, and upgrade the software through TFTP. The following problems may occur:
1. The CF card has no enough space.
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
To solve this problem, delete some files in the CF card or use a new CF card so that enough space
is available for the application program.
2. The file to be downloaded is not found.
File will be transferred in binary mode