In general, you can use the following dmctl command to change the value of any basic-type attribute (string, boolean, integer, float, and so on) of any object:
dmctl -s <Domain Manager instance name> put <class::instance::attribute> <value>
Upon issuing a dmctl command, you might be prompted for a username and password. Respond with your user account. For example, to specify the default administrative account, enter username admin and password changeme.
For MPLS Manager, you use the dmctl put command to override parameter settings in the mpls.conf file, the REMOTEPING.conf file, and the vpn-tagging.conf file.