Storage Device Operation Submenu; Upgrading Bootware And Applications Through A Serial Port; Introduction To Xmodem - 3Com H3C SECPATH F5000-A5 ADVANCED VPN FIREWALL 12-PORT GIGABIT ETHERNET MODULE Installation Manual

Table 6-5 BootWare operation submenu
Menu item
<1> Backup Full BootWare
<2> Restore Full BootWare
<3> Update BootWare By Serial
<4> Update BootWare By Ethernet
<0> Exit To Main Menu

Storage Device Operation Submenu

Select 9 on the main menu to enter the storage device operation submenu:
==========================<DEVICE CONTROL>============================
|<1> Display All Available Nonvolatile Storage Device(s)
|<2> Set The Operating Device
|<3> Set The Default Boot Device
|<0> Exit To Main Menu
======================================================================
Enter your choice(0-3):
Items on this submenu are described in Table 6-6.
Table 6-6 Storage device operation submenu
<1> Display All Available Nonvolatile Storage Device(s)
<2> Set The Operating Device
<3> Set The Default Boot Device
<0> Exit To Main Menu

Upgrading BootWare and Applications Through a Serial Port

Introduction to Xmodem

Xmodem is used for upgrading BootWare and applications through a serial port.
Xmodem is a file transfer protocol that is widely used due to its simplicity and high performance.
Xmodem transfers files through a serial port. It supports two types of data packets (128 bytes and 1 KB),
two check methods (checksum and CRC), and error packet retransmission mechanism (generally the
maximum number of retransmission attempts is 10).
An Xmodem transmission procedure is completed by the cooperation of a receiving program and a
sending program. The receiving program sends a negotiation character to negotiate a packet check
method. After the negotiation, the sending program starts to transmit data packets. Upon receiving a
complete data packet, the receiving program checks the packet using the agreed method.
If the check succeeds, the receiving program sends an acknowledgement character and the
sending program proceeds to send another packet.
Back up the entire BootWare.
Restore the entire BootWare.
Upgrade BootWare through a serial port.
Upgrade BootWare through an Ethernet interface.
Return to the main menu.
Menu item
6-10
Description
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Description
Display all available storage devices.
Configure the operating device.
Configure the default boot device.
Return to the main menu.