Cabletron Systems CSMIM-T1 Manual De Usuario
Auto-initializing the ROMs
CSMIM-T1 Hardware Installation Guide
2-11
2.7
AUTO-INITIALIZING THE ROMS
The CSMIM-T1 is distributed without an IP address or preferred load
host (UNIX/IP or MOP) defined in ROM. When the device is booted, the
CSMIM-T1 attempts to auto-initialize its ROMs using BOOTP (bootstrap
protocol) and RARP (Reverse Address Resolution Protocol).
host (UNIX/IP or MOP) defined in ROM. When the device is booted, the
CSMIM-T1 attempts to auto-initialize its ROMs using BOOTP (bootstrap
protocol) and RARP (Reverse Address Resolution Protocol).
The CSMIM-T1 supports the BOOTP and RARP protocols. The ROMs
use these protocols to obtain boot information without requiring any
manual set up on the CSMIM-T1.
use these protocols to obtain boot information without requiring any
manual set up on the CSMIM-T1.
•
BOOTP is a bootstrap protocol that allows a diskless client to
determine its Internet address, the Internet address of the server, and
the name of the file to be loaded into memory.
determine its Internet address, the Internet address of the server, and
the name of the file to be loaded into memory.
•
RARP (Reverse Address Resolution Protocol) maps a hardware
address into an Internet address.
address into an Internet address.
The ROM invokes these methods of acquiring boot information when a
boot is initiated and the CSMIM-T1’s Internet Address is not initialized.
Under this condition, the CSMIM-T1 first tries to get boot information via
BOOTP; if BOOTP fails, it tries to get boot information via RARP. If
neither protocol is successful, the CSMIM-T1 attempts to load an image
by transmitting an IPX advertisement request for service and a MOP
multicast boot request. Although it will attempt to load an IPX image, the
module WILL NOT BOOT FROM IPX.
boot is initiated and the CSMIM-T1’s Internet Address is not initialized.
Under this condition, the CSMIM-T1 first tries to get boot information via
BOOTP; if BOOTP fails, it tries to get boot information via RARP. If
neither protocol is successful, the CSMIM-T1 attempts to load an image
by transmitting an IPX advertisement request for service and a MOP
multicast boot request. Although it will attempt to load an IPX image, the
module WILL NOT BOOT FROM IPX.
If all requests fail, the CSMIM-T1 will return to the ROM Monitor (if in
test mode) or continue the auto initializing procedure indefinitely (if in
normal mode).
test mode) or continue the auto initializing procedure indefinitely (if in
normal mode).