[Cisco] Configuration Register Values and their Meaning－里歐's 布拉格

Configuration Register Setting	Router Behavior
0x102	Ignores break
0x102	9600 console baud
0x1202	1200 baud rate
0x2101	Boots into bootstrap
	Ignores break
	Boots into ROM if initial boot fails
	9600 console baud rate
0x2102	Ignores break
	Boots into ROM if initial boot fails
	9600 console baud rate default value for most platforms
0x2120	Boots into ROMmon
0x2120	19200 console speed
0x2122	Ignores break
	Boots into ROM if initial boot fails
	19200 console baud rate
0x2124	NetBoot
	Ignores break
	Boots into ROM if initial boot fails
	19200 console speed
0x2142	Ignores break
	Boots into ROM if initial boot fails
	9600 console baud rate
	Ignores the contents of Non-Volatile RAM (NVRAM) (ignores configuration)
0x2902	Ignores break
	Boots into ROM if initial boot fails
	4800 console baud rate
0x2922	Ignores break
	Boots into ROM if initial boot fails
	38400 console baud rate
0x3122	Ignores break
	Boots into ROM if initial boot fails
	57600 console baud rate
0x3902	Ignores break
	Boots into ROM if initial boot fails
	2400 console baud rate
0x3922	Ignores break
	Boots into ROM if initial boot fails
	115200 console baud rate