88Step4 If the temperature inside the router exceeds 90°C (194°F), power off the router immediately and contactyour local sales agent.NOTE:For more information about the display environment command, see theH3C SR6600 RoutersFundamentals Command Reference.Interface module, cable, and connection failureAfter an HIM/MIM is installed and the router is powered on, the LEDs on the HIM/MIM panel mayindicate abnormal operation.Follow these steps to solve this problem:Step1 Check whether the HIM/MIM cable is correctly selected.Step2 Check whether the HIM/MIM cable is correctly connected.Step3 Use the display command to check whether the interface of the interface module has been correctlyconfigured and is working properly.Software upgrade failuresNo response from the serial port of the MPUThe serial port of the MPU gives no response.To solve the problem, check whether the serial port settings are correct (whether the Bits per second fieldis set to 9600 kbps).NOTE:For more information about the serial port settings, see “Setting terminal parameters.”TFTP upgrade failureStart 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 modeDownloading file from remote TFTP server, please wait...\Failed to write data into storage device, maybe no enough space on deviceTo solve this problem, delete some files in the CF card or use a new CF card so that enough space isavailable for the application program.2. The file to be downloaded is not found.File will be transferred in binary modeDownloading file from remote TFTP server, please wait...File not found.To solve this problem, type the correct file name.3. The configuration of the network port is incorrect.
