Cisco UBR924 - uBR 924 Router Przewodnik Instalacji Pobierz pdf (Strona 175)

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Cisco uBR7100 Series Universal Broadband Router Software Configuration Guide

OL-2238-03

APPENDIX

Configuration Register Information for the Cisco

uBR7100 Series Universal Broadband Routers

The following information is found in this appendix:

• Configuration Bit Meanings, page A-1

• Displaying the Configuration Register While Running Cisco IOS, page A-5

• Displaying the Configuration Register While Running ROM Monitor, page A-6

• Setting the Configuration Register While Running Cisco IOS, page A-6

• Setting the Configuration Register While Running ROM Monitor, page A-7

Configuration Bit Meanings

Use the processor configuration register information contained in this appendix to do the following:

• Set and display the configuration register value

• Force the system into the bootstrap program

• Select a boot source and default boot filename

• Enable or disable the Break function

• Control broadcast addresses

• Set the console terminal baud rate

• Load operating software from ROM

• Enable booting from a Trivial File Transfer Protocol (TFTP) server

Table A-1 lists the meaning of each of the configuration memory bits. Following the table is a more

in-depth description of each setting.

Table A-1 Configuration Register Bit Settings

Bit No. Hex Meaning

00–03 0x0000–0x000F Boot field

06 0x0040 Causes the system software to ignore nonvolatile random-access

memory (NVRAM) contents

07 0x0080 OEM (original equipment manufacturer) bit enabled

1 2 ... 170 171 172 173 174 175 176 177 178 179 180 ... 187 188

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Cisco UBR924 - uBR 924 Router Przewodnik Instalacji Strona 175