H3C S12500 Installation Instructions Manual

Also see for S12500 Series: Installation guide Quick start guide Software Upgrade Configuration Examples Interface configuration guide

Contents

5-10Menu item 9 is not supported currently.When loading the host program through the BootWare menu, you must configure correct attributes ofthe serial interface (such as the bits per second, data bit, parity, stop bits, and flow control). Otherwise,the HyperTerminal does not respond. For details, refer to Chapter 4 “Commissioning the Switch”.Updating software through console port (XModem)z Brief introduction to XModemXModem, a type of file transfer protocol, is broadly applied for its simplicity and good performance. Ittransmits files through serial interfaces, supporting 128 bytes and 1 KB in terms of data unit, checksumand CRC in terms of checking mode, and multiple retransmissions (usually ten attempts) in the eventthat packet errors are found.XModem completes transmission by the receiving program (receiver) and the sending program(sender). In XModem, the transmission begins with the sending of negotiation characters from thereceiver for the purpose of check mode negotiation. After passing the negotiation, the sender is allowedto send the first data packet. Upon the receipt of the complete packet, the receiver checks the packetusing the agreed checking mode and will send an ACK if the packet has passed the check and a NAK ifnot. Receiving the ACK, the sender will send the next packet; receiving the NAK instead, the sender willretransmit the previously sent packet.z Xmodem applicationStep1 In the BootWare menu, enter 2, press Enter, and the system will access the serial interface submenu:=====================================================|Note:the operating device is cfa0 ||<1> Download Application Program To SDRAM And Run ||<2> Update Main Application File ||<3> Update Backup Application File ||<4> Update Secure Application File ||<5> Update User Private File ||<6> Modify Serial Interface Parameter ||<0> Exit To Main Menu |==========================================================================Enter your choice(0-6):Step2 Enter 6 in the serial interface submenu and press Enter to access the following interface for setting theparameters of the downloading serial interface:============================================================|Note:'*'indicates the current baudrate || Change The HyperTerminal's Baudrate Accordingly ||------------------------------------------------------||<1> 9600(Default)* ||<2> 19200 ||<3> 38400 ||<4> 57600 |