Installation ManualH3C S7500E Series Ethernet Switches Chapter 6 Software Maintenance6-22z After the system is rebooted, upgrade the Boot ROM program on the LPU throughcommand lines. For the command lines, refer to section 6.4.1 I. 2)”Upgrade theBoot ROM program.” on page 6-18.Caution:z The software of the SRPUs and LPUs must be consistent so that the S7500E seriescan work normally.z After upgrading the host software of the SRPUs of the S7500E series, you mustreboot the LPUs to synchronize the software of the LPUs with that of the SRPUs.z You are recommended to reboot the whole system after upgrading the software ofthe SRPUs.6.5 Handling Upgrade FailureIf an upgrade fails, the system runs the original version. In this case, you need to checkwhether the physical ports are well connected.1) If no, reconnect them correctly and restart the upgrade.2) If yes, check the information displayed on the HyperTerminal during the upgradeprocess for any error. If there is any input error, correct it and restart the upgrade.For example,z If the XMODEM is used for upgrade, the baud rate of the HyperTerminal is notchanged back to 9600 bps after you download the software by using a baud rateother than 9600 bps.z If TFTP is used for upgrade, the IP address of server or switch, the name of the fileto be downloaded, or the working path of TFTP server is wrong.z If FTP is used for upgrade, the IP address of server or switch, the name of the fileto be downloaded, the username, or the password is wrong.3) If the upgrade fails when the physical connection is normal and no input errors arefound, contact the local agents of Hangzhou H3C Technologies Co., Ltd. for help.6.6 Handling Password LossIf you lose the Boot ROM password of the switch, contact the local agents of HangzhouH3C Technologies Co., Ltd.
