Switching between NetworkManager and traditional network setup

When a system is configured for both NetworkManager and the traditional network setup, and the goal is to switch between both modes in a quick way.

The rcnetwork script is able to do that for the current session. It needs to be called in the following way to switch temporarily from NetworkManager to ifup:

rcnetwork restart -o netcontrol

To switch back to NetworkManager use:

rcnetwork restart -o nm

This does not affect the general setting for the network architecture. After a reboot it will switch back to the default setting selected with YaST. To switch to a different type permanently, use YaST.