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Additional Configuration and Maintenance Tasks
56
Performance Route Processor Installation and Configuration Guide
OL-11656-01
Table 8 defines the bits in the software configuration register.
Note Valid software configuration register values may be combinations of settings,
rather than the individual settings listed in Table 8. For example, the factory
default value 0x0102 for the software configuration register is a composite of
several settings.
Table 8 Software Configuration Register Bit Meanings
Bit Number
1
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.
Hexadecimal Value Meaning/Function
00 to 03 0x0000 to 0x000F Comprises the boot field for defining the source of a default
Cisco IOS software image required to run the router
(see Table 9)
06 0x0040 Causes system software to ignore the contents of NVRAM
07 0x0080 Enables the OEM
2
bit
2. OEM = original equipment manufacturer.
08 0x0100 Disables the Break function
09 0x0200 Uses a secondary bootstrap
10 0x0400 Broadcasts Internet Protocol (IP) with all zeros
11 and 12 0x0800 to 0x1000 Defines the console baud rate (the default setting is 9600 bps)
13 0x2000 Boots the default Flash memory software if the network boot
fails
14 0x4000 Excludes network numbers from IP broadcasts
15 0x8000 Enables diagnostic messages and ignores the contents of
NVRAM