I am confused between two statement:
while reading through password recovery mechanism and said that
Power on router again
press break key.
How come it accepts break if config-register is 2102.
May be it very easy to understand but I am not able to. Please help.
Yes Mahesh this is the meaning, it is done when router is reloading.
There is another command "no service password-recovery" you can find information about it on this link:
The Purpose of the Configuration Register
The configuration register can be used to change router behavior in several ways, such as:
how the router boots (into ROMmon, NetBoot)
options while booting (ignore configuration, disable boot messages)
console speed (baud rate for a terminal emulation session)