Table 18 - Cisco PRP-2 Installation And Configuration Manual

Additional Configuration and Maintenance Tasks
The RP ROM monitor is loaded into the RP Flash ROM when the RP is manufactured. You can use
it to boot the system from local Flash memory devices. The RP ROM monitor software can be
upgraded in the field, if necessary.
Note
Read boot system commands from the configuration file stored in NVRAM.
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Table 18

Table 18
Bit Number
00 to 03
06
07
08
09
10
11 and 12
13
14
15
1. The factory default value for the software configuration register is 0x0102. This value is a combination of binary bit 8 =
0x0100 and binary bits 00 through 03 = 0x0002.
2. OEM = original equipment manufacturer.
Valid software configuration register values may be combinations of settings, rather than the individual
Note
settings listed in
register is a composite of several settings.
60
All PRP-2 cards shipped prior to the release of Cisco IOS release 12.0(30)S are provided with a
ROM monitor version installed at the factory. This ROM monitor version cannot be changed
while using IOS images older than 12.0(30)S. When using software release 12.0(30)S or later,
the ROM monitor software can be updated normally.
If you attempt to upgrade the ROM monitor software while running a release prior to 12.0(30)S,
you will receive the following error message:
Unknown device (mfg id 0x01, dev id 0xA3
Error: Unknown Flash Device type!
GRP ROM monitor upgrade won't continue
If you are running a PRP-2 on a software release prior to 12.0(30)S and you receive an error
message that you must upgrade the ROM monitor software, ignore this error message.
defines the bits in the software configuration register.
Software Configuration Register Bit Meanings
1
Hexadecimal Value
0x0000 to 0x000F
0x0040
0x0080
0x0100
0x0200
0x0400
0x0800 to 0x1000
0x2000
0x4000
0x8000
Table 18. For example, the factory default value 0x0102 for the software configuration
Meaning/Function
Comprises the boot field for defining the source of a default
Cisco IOS software image required to run the router
(see Table 19)
Causes system software to ignore the contents of NVRAM
2
Enables the OEM bit
Disables the Break function
Uses a secondary bootstrap
Broadcasts Internet Protocol (IP) with all zeros
Defines the console baud rate (the default setting is 9600 bps)
Boots the default Flash memory software if the network boot
fails
Excludes network numbers from IP broadcasts
Enables diagnostic messages and ignores the contents of
NVRAM
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