@article { 11570_3140168, title = {Hierarchical load balancing as a service for federated cloud networks}, journal = {COMPUTER COMMUNICATIONS}, volume = {129}, year = {2018}, pages = {125{\textendash}137}, keywords = {Cloud networking federation, Computer Networks and Communications, Load balancing, OpenStack, orchestration, Overlay networks, SDN}, doi = {10.1016/j.comcom.2018.07.031}, url = {http://www.journals.elsevier.com/computer-communications/}, author = {Levin, Anna and Lorenz, Dean and Merlino, Giovanni and Panarello, Alfonso and Puliafito, Antonio and Tricomi, Giuseppe} }