Installation ManualH3C S7502 Ethernet Switch Chapter 7 Software Maintenance7-4sends an acknowledgement character; if the check fails, it sends a reject character.Upon the receipt of the acknowledgement, the sending program continues to send thenext packet; upon the receipt of the reject, it retransmits the packet.II. Loading Boot ROMFollow these steps to download the Boot ROM program:Step 1: Press and in the Boot Menu to display the Boot ROM updatemenu:SRPU bootrom update menu:1. Set TFTP protocol parameter2. Set FTP protocol parameter3. Set XMODEM protocol parameter0. Return to boot menuEnter your choice(0-3):3Step 2: Type <3> to download the Boot ROM program using XModem. Press and the system displays the following download speed setting menu:Please select your download baudrate:1. 96002. 192003. 384004. 576005. 1152000. ExitEnter your choice (0-5):5Step 3: Choose an appropriate download baud rate. Type <5> to choose the baud rate115200 bps. Press and the system displays the following information:Are you sure to update SRPU bootrom? Yes or No(Y/N)Step 4: Type to start the downloading or to return to the program downloadingmenu. If you type , the system displays the following information:Download baudrate is 115200 bps. Please change the terminal's baudrate to115200 bps, and select XMODEM protocol.Press enter key when ready.Note:You do not need to modify the HyperTerminal’s baud rate if you have chosen 9600 bps,and thus you can skip Steps 5 and 6 and go to Step 7 directly. At this time, the systemwill not display the above information.
