H3C LS-5500-28C-PWR-SI-OVS Installation Manual

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H3C LS-5500-28C-PWR-SI-OVS Installation Manual Manual pdf 69 page image

Installation ManualH3C S5500-SI Complete Series Ethernet Switches Chapter 5 Boot ROM and Host Software Loading5-3BOOT MENU1. Download application file to flash2. Select application file to boot3. Display all files in flash4. Delete file from flash5. Modify bootrom password6. Enter bootrom upgrade menu7. Skip current configuration file8. Set bootrom password recovery9. Set switch startup mode0. RebootEnter your choice(0-9):5.2.2 Loading Software Using XMODEM Through Console PortI. Introduction to XMODEMXMODEM is a file transfer protocol that is widely used due to its simplicity and goodperformance. XMODEM transfers files via Console port. It supports two types of datapackets (128 bytes and 1 KB), two check methods (checksum and CRC), and errorpacket retransmission mechanism (generally the maximum number of retransmissionattempts is ten).The XMODEM transmission procedure is completed by the cooperation of a receivingprogram and a sending program. The receiving program sends a negotiation packet tonegotiate a packet check method. After the negotiation, the sending program starts totransmit data packets. When receiving a complete packet, the receiving programchecks the packet using the agreed method. If the check succeeds, the receivingprogram sends an acknowledgement packet and the sending program proceeds tosend another packet; otherwise, the receiving program sends a negativeacknowledgement packet and the sending program retransmits the packet.II. Loading Boot ROM softwareStep 1: At the prompt "Enter your choice(0-9):" select 6 in the Boot Menu and thenpress to enter the Boot ROM update menu shown below:Bootrom update menu:1. Set TFTP protocol parameter2. Set FTP protocol parameter3. Set XMODEM protocol parameter0. Return to boot menuEnter your choice(0-3):