Changing Settings - Cisco RSP2 - Route Switch Processor 2 Installation And Configuration Manual

Table 18
Bit Number
14
15
1. The factory default value for the configuration register is 0x0102. This value is a combination of the following: bit 8 =
2. OEM = original equipment manufacturer
Table 19
Boot Field
00
01
02 to 0F

Changing Settings

To change the configuration register while running the system software, follow these steps:
Enter the enable command and your password to enter privileged level, as follows:
Step 1
Router> enable
Password:
Router#
At the privileged-level system prompt (Router #), enter the configure terminal command. You are
Step 2
prompted for further commands, as shown in the following example:
Router# configure terminal
Enter configuration commands, one per line.
Router(config)#
To set the contents of the configuration register, enter the config-register 0xvalue configuration
Step 3
command, where value is a hexadecimal number preceded by 0x (see
Router(config)# config-register 0x value
Exit the configuration mode by entering Ctrl-Z. The new value settings are saved to memory; however,
Step 4
the new settings do not take effect until the system software is reloaded by rebooting the router.
To display the configuration register value currently in effect and the value that will be used at the next
Step 5
reload, enter the show version EXEC command. The value is displayed on the last line of the screen
display, as in the following example:
Configuration register is 0x141 (will be 0x101 at next reload)
Step 6 Reboot the router. The new value takes effect. Configuration register changes take effect only when the
system reloads, such as when you issue a reload command from the console.
This completes the procedure to change the configuration register while running the system software.
80
Software Configuration Register Bit Meanings (Continued)
1
Hexadecimal
0x4000
0x8000
0x0100 and bits 00 through 03 = 0x0001 (see
Explanation of Boot Field (Software Configuration Register Bits 00 to 0F)
Meaning
Stays at the system bootstrap prompt
Boots the first system image in onboard Flash memory
Specifies a default network boot filename
Enables boot system commands that override the default network boot filename
Meaning
IP broadcasts do not have network numbers
Enable diagnostic messages and ignore NVRAM contents
Table 19).
End with CNTL/Z.
Table 19), as in the following:
OL-4923-01 B0