Wicked replaces a lot of old Linux network configuration commands and utilities in SLES 12, making the OS more cloud friendly.
As Linux distributions rapidly become more cloud compatible, network configurations gain complexity and flexibility. SUSE introduced the wicked network management tool to handle cloud and cloud-ready networking.
Source:
http://searchdatacenter.techtarget.com/tip/Linux-network-configuration-turns-positively-wicked
