Cisco RSP7000 Installation And Configuration Manual page 34

Reference Information
Table 5
Bit Number
00 to 03
06
07
08
09
10
11 to 12
13
14
15
1. The factory default value for the configuration register is 0x0101. This value is a combination of the following:
bit 8 = 0x0100 and bits 00 through 03 = 0x0001 (see Table 6).
2. OEM = original equipment manufacturer.
Table 6
Boot Field
00
01
02 to 0F
Changing Settings
To change the configuration register while running the system software, follow these steps:
Step 1
Step 2
Step 3
Step 4
34 7000 Series Route Switch Processor (RSP7000) Installation and Configuration in the Cisco 7000 Series Routers
Software Configuration Register Bit Meanings
1
Hexadecimal
0x0000 to 0x000F
0x0040
0x0080
0x0100
0x0200
0x0400
0x0800 to 0x1000
0x2000
0x4000
0x8000
Explanation of Boot Field (Software Configuration Register Bits 00 to 03)
Meaning
Stays at the system bootstrap prompt
Boots the first system image in onboard Flash memory
Specifies a default netboot filename
Enables boot system commands that override the default netboot filename
Enter the enable command and your password to enter privileged level, as follows:
Router> enable
Password:
router#
At the privileged-level system prompt (router #), enter the
You will be prompted as shown in the following example:
Router# conf t
Enter configuration commands, one per line.
Router(config)#
To set the contents of the configuration register, enter the config-register value
configuration command, where value is a hexadecimal number preceded by 0x
(see Table 5), as in the following:
Router(config)# config-register 0x value
Exit the configuration mode by entering Ctrl-Z. The new value settings will be saved to
memory; however, the new settings do not take effect until the system software is reloaded
by rebooting the router.
Meaning
Boot field (see Table 6)
Causes system software to ignore NVRAM contents
2
OEM bit enabled
Break disabled
Use secondary bootstrap
Internet Protocol (IP) broadcast with all zeros
Console line speed (default is 9600 baud)
Boot default Flash software if network boot fails
IP broadcasts do not have network numbers
Enable diagnostic messages and ignore NVRAM contents
End with CNTL/Z.
command.
configure terminal