3Com S7906E Getting Started Manual

Also see for S7902E: Product guide Datasheet Command reference guide Configuration guide

Contents

3Com S7906E Getting Started Manual Manual pdf 125 page image

6-6Attaching network interfPrepare for loading...OK!Loading..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................done!Free flash Space : 65932288 bytesWriting flash............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................done!1. Set TFTP protocol parameter2. Set FTP protocol parameter3. Set XMODEM protocol parameter0. Return to boot menuEnter your choice(0-3):After the above steps, you have completed the downloading of the host software package.To complete the host software upgrade, you need to set the main/backup attribute of the host software.For details, refer to “Setting the Main and Backup Host Software Through the Boot Menu” on page 6-11.If you need to upgrade the Boot ROM on the SRPUs through the boot menu, refer to section “UpdatingBoot ROM Through a File on the Flash” on page 6-12.Downloading Through the Console Port Using XMODEMIntroduction to XMODEMThe XMODEM protocol is a file transfer protocol widely used due to its simplicity and good performance.XMODEM transfers files through the console port, supporting data packets of 128 bytes and 1 KB. Withrespect to reliability, XMODEM supports checksum, CRC, and error packet retransmission mechanism.Normally, the maximum number of transmission attempts is 10.XMODEM transmission is completed by the receiving and sending program. The receiving programinitiates packet checking method negotiation by sending the negotiation character. After negotiation, thesending program starts packet transmission. Upon the receipt of a complete packet, the receivingprogram checks it using the negotiated checking method. If the check succeeds, the receiving programsends an acknowledgement character; if the check fails, it sends a negative acknowledgementcharacter. Upon the receipt of an acknowledgement, the sending program continues to send the nextpacket; upon the receipt of a negative acknowledgement, it retransmits the packet.