Configuration Register Values and their Meaning

Configuration Register Setting
Router Behavior
0×102

·         Ignores break

·         9600 console baud

0×1202

·         1200 baud rate

0×2101

·         Boots into bootstrap

·         Ignores break

·         Boots into ROM if initial boot fails

·         9600 console baud rate

0×2102

·         Ignores break

·         Boots into ROM if initial boot fails

·         9600 console baud rate default value for most platforms

0×2120

·         Boots into ROMmon

·         19200 console speed

0×2122

·         Ignores break

·         Boots into ROM if initial boot fails

·         19200 console baud rate

0×2124

·         NetBoot

·         Ignores break

·         Boots into ROM if initial boot fails

·         19200 console speed

0×2142

·         Ignores break

·         Boots into ROM if initial boot fails

·         9600 console baud rate

·         Ignores the contents of Non-Volatile RAM (NVRAM) (ignores configuration)

0×2902

·         Ignores break

·         Boots into ROM if initial boot fails

·         4800 console baud rate

0×2922

·         Ignores break

·         Boots into ROM if initial boot fails

·         38400 console baud rate

0×3122

·         Ignores break

·         Boots into ROM if initial boot fails

·         57600 console baud rate

0×3902

·         Ignores break

·         Boots into ROM if initial boot fails

·         2400 console baud rate

0×3922

·         Ignores break

·         Boots into ROM if initial boot fails

·         115200 console baud rate