apply config-file

[Johnson_Mo]

Hi team,

after copying a config file from tftp to cisco router, in order for the config file to be applied, I reload the device. is there a command to quickly force the config file to take place? 

I did the followings and still the config file wont apply. this is a test lab on GNS3

Router# Copy tftp:config.txt flash:

Once the copy is done

Router# copy flash:config.txt running-config

Router# Wr mem

thanks 

[pieterh]

Router# Copy tftp:config.txt flash:
Once the copy is done
Router# copy flash:config.txt running-config

that should do the job!
NB! the copy to running-config is ADDING lines to the config, so it will not replace the current config
copy to running-config will not remove lines unless explicitly commanded in the config.txt ,
but it will replace a line like "hostname...." and it will remove lines if explicit commanded like "no access-list ...."

if you want to replace the whole config you can 
     Copy tftp:config.txt startup-config
     reload  ! (dont save the config when asked)

[Johnson_Mo]

thanks for the wonderful response!

[Joseph W. Doherty]

See if your IOS supports the "configure replace" command.