On the load balancing of virtual networks in distributed clouds

The distribution of computing resources in different geographical regions and the promotion of full integration with network resources are important issues of new architectures for Cloud computing. Such scattered Cloud deployments, called Distributed Clouds (D-Clouds), can directly reach users due to their inherently distributed infrastructure and the ownership of the network. Thus, D-Clouds can comply with geographically-based requirements and network-based quality of service. One of the challenges in this area is the resource management. In this way, a clever resource allocation algorithm is needed to satisfy service requirements and an owner's management objectives. This paper proposes algorithms for allocation of computing and network resources in a D-Cloud with the objectives of balancing the load in the virtualized infrastructure and of considering constraints, such as processing power, memory, storage, and network delay. The evaluation of the algorithm shows that it is indeed adequate for link allocation across different physical networks.