3HNA024871-00102机器人模块,ABB如何使用
网络输入/输出支持网络引导固件提供了引导CPU通过ROM调试器使用网络（本地以太网接口）作为引导设备。引导过程分两个不同的阶段执行。❏ 第一阶段允许无盘远程节点发现其
网络标识和要引导的文件的名称。❏ 第二阶段是无盘远程节点读取通过网络将文件引导到其内存中。各种模块和这些模块的依赖关系支持整体网络引导功能，详见以下段落。
3HNA024871-00102机器人模块Intel 82596 LAN协处理器以太网驱动程序此驱动程序管理/包围Intel 82596 LAN协处理器。
管理属于数据包接收的范围数据包传输、接收缓冲区刷新和接口初始化。
该模块确保了以太网数据包在引导PROM中正确完成。
UDP/IP协议模块互联网协议（IP）设计用于互联网络分组交换计算机通信网络系统。
互联网协议提供了数据块的传输从源到目标，其中源和目标是主机由固定长度地址标识。
UDP/IP协议是TFTP和BOOTP所必需的协议；TFTP和BOOTP需要UDP/IP连接。RARP/ARP协议模块反向地址解析协议（RARP）基本上包括无身份节点将“whoami”数据包广播到以太网，并等待答案。RARP服务器填充以太网回复数据包，包括目标的互联网地址和发送它。
地址解析协议（ARP）基本上提供了将协议地址（例如IP地址）转换为局域网地址（例如以太网地址）。RARP协议模块支持不支持BOOTP协议。
Network I/O Support
The Network Boot Firmware provides the capability to boot the
CPU through the ROM debugger using a network (local Ethernet
interface) as the boot device.
The booting process is executed in two distinct phases.
❏ The first phase allows the diskless remote node to discover its
network identify and the name of the file to be booted.
❏ The second phase has the diskless remote node reading the
boot file across the network into its memory.
The various modules and the dependencies of these modules that
support the overall network boot function are described in the
following paragraphs.
Intel 82596 LAN Coprocessor Ethernet Driver
This driver manages/surrounds the Intel 82596 LAN Coprocessor.
Management is in the scope of the reception of packets, the
transmission of packets, receive buffer flushing, and interface
initialization.
This module ensures that the packaging and unpackaging of
Ethernet packets is done correctly in the Boot PROM.
UDP/IP Protocol Modules
The Internet Protocol (IP) is designed for use in interconnected
systems of packet-switched computer communication networks.
The Internet Protocol provides for transmitting of blocks of data
called datagrams (hence User Datagram Protocol, or UDP) from
sources to destinations, where sources and destinations are hosts
identified by fixed length addresses.
The UDP/IP protocols are necessary for the TFTP and BOOTP
protocols; TFTP and BOOTP require a UDP/IP connection. RARP/ARP Protocol Modules
The Reverse Address Resolution Protocol (RARP) basically consists
of an identity-less node broadcasting a "whoami" packet onto the
Ethernet, and waiting for an answer. The RARP server fills an
Ethernet reply packet up with the target's Internet Address and
sends it.
The Address Resolution Protocol (ARP) basically provides a
method of converting protocol addresses (e.g., IP addresses) to
local area network addresses (e.g., Ethernet addresses). The RARP
protocol module supports systems which do not support the
BOOTP protocol.
