The cost of a cloud: research problems in data center networks
ACM SIGCOMM Computer Communication Review
Graphs, Networks and Algorithms
Graphs, Networks and Algorithms
A virtual network mapping algorithm based on subgraph isomorphism detection
Proceedings of the 1st ACM workshop on Virtualized infrastructure systems and architectures
A survey of network virtualization
Computer Networks: The International Journal of Computer and Telecommunications Networking
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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.