Network I/O Support
http://www.mcg.mot.com/literature
3-19
3
RARP/ARP Protocol Modules
The Reverse Address Resolution Protocol (RARP) 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) provides a method of converting
protocol addresses (i.e., IP addresses) to local area network addresses (i.e.,
Ethernet addresses). The RARP protocol module supports systems which
do not support the BOOTP protocol (next paragraph).
BOOTP Protocol Module
The Bootstrap Protocol (BOOTP) allows a diskless client machine to
discover its own IP address, the address of a server host, and the name of
a file to be loaded into memory and executed.
TFTP Protocol Module
The Trivial File Transfer Protocol (TFTP) is a simple protocol to transfer
files. It is implemented on top of the Internet User Datagram Protocol
(UDP or Datagram) so it may be used to move files between machines on
different networks implementing UDP. The only thing it can do is read and
write files from/to a remote server.
Network Boot Control Module
The "control" capability of the Network Boot Control Module is needed to
tie together all the necessary modules (capabilities) and to sequence the
booting process. The booting sequence consists of two phases: the first
phase is labeled "address determination and bootfile selection" and the
second phase is labeled "file transfer". The first phase will utilize the
RARP/BOOTP capability and the second phase will utilize the TFTP
capability.
Network I/O Error Codes
The 162Bug returns an error code if an attempted network operation is
unsuccessful.
Содержание MVME162LX 200 Series
Страница 1: ...MVME162LX 200 300 Series Embedded Controller Installation and Use V162LX2 3A IH3 ...
Страница 6: ......
Страница 14: ...xiv ...
Страница 66: ...1 52 Computer Group Literature Center Web Site Board Level Hardware Description 1 ...
Страница 84: ...2 18 Computer Group Literature Center Web Site Hardware Preparation and Installation 2 ...
Страница 108: ...3 24 Computer Group Literature Center Web Site Debugger General Information 3 ...
Страница 156: ...IOT Command Parameters for Supported Floppy Types B 6 Computer Group Literature Center Web Site B ...
Страница 158: ...C 2 Computer Group Literature Center Web Site C ...
Страница 164: ...Ethernet Interconnections E 2 Computer Group Literature Center Web Site E ...
Страница 200: ...J 4 Computer Group Literature Center Web Site J ...
Страница 208: ...Index IN 8 Computer Group Literature Center Web Site I N D E X ...