Cloud Networking has emerged as a promising direction for cost efficient and reliable service delivery across data communication networks. The dynamic location of service facilities and the virtualization of hardware and software elements are stressing the communication network and protocols, especially when data centers are interconnected through the Internet. Although the "computing" aspects of Cloud technologies have been largely investigated, lower attention has been devoted to the "networking" aspects. The 2nd IEEE International Conference on Cloud Networking (IEEE CloudNet 2013), part of the IEEE Cloud Computing Initiative, precisely addresses these aspects.