3Com 7757 Configuration Manual page 838

838 C 77: B ROM
HAPTER OOT
n
Loading Software Using
XMODEM through
Console Port
H S L
AND OST OFTWARE OADING
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Copyright(c) 2004-2007 3Com Corporation
Creation date : Apr 15 2007, 14:48:52
CPU type : MPC8245
CPU Clock Speed : 300Mhz
BUS Clock Speed : 33Mhz
BOOT_FLASH type : AMD29LV040B
Flash Size : 32MB
Memory Size : 256MB
S7757 main board self testing................................
SDRAM Data lines Selftest.................................OK!
SDRAM Address lines Selftest..............................OK!
SDRAM fast selftest.......................................OK!
Please check LEDs.....................LEDs selftest finished!
CPLD selftest.............................................OK!
FPGA selftest.............................................OK!
The switch Mac address is .....................000F.E22E.5576
Press Ctrl+B to enter Boot Menu... 5
Press <Ctrl+B>. The system displays:
Password :
To enter the Boot Menu, you should press <Ctrl+B> within five seconds after the
information "Press Ctrl-B to enter Boot Menu..." appears. Otherwise, the system
starts to decompress the program; and if you want to enter the Boot Menu at this
time, you will have to restart the switch.
Input the correct BootROM password (no password is need by default). The system
enters the Boot Menu:
BOOT MENU
1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify bootrom password
0. Reboot
Enter your choice(0-5):
Introduction to XMODEM
XMODEM is a file transfer protocol that is widely used due to its simplicity and
good performance. XMODEM transfers files via Console port. It supports two
types of data packets (128 bytes and 1 KB), two check methods (checksum and
CRC), and multiple attempts of error packet retransmission (generally the
maximum number of retransmission attempts is ten).
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