An SDN orchestrator for resources chaining in cloud data centers

The oversubscription of intra-Data Center links and the high volatility of Virtual Machine deployments require a flexible and agile control of the Data Center network infrastructure, possibly coordinated with computing and storage resources control. In this scenario, the Software-Defined Networking paradigm opens up new opportunities to design orchestrated resources control strategies able to meet the dynamically-changing traffic demands of instantiated Virtual Machines. This paper presents the architectural design of an SDN-based orchestrator for dynamic computing and communication resources chaining, able to assure better than best effort VMs data exchanges across Cloud Data Centers. Moreover, the paper evaluates a number of different chaining strategies able to dynamically compose proper pool of resources based on their variable load. Such strategies are compared against specific management objectives using both simulations and experiments showing their effectiveness in terms of resource usage and service provisioning rate.

[1]  Stefano Giordano,et al.  On virtualization-aware traffic engineering in OpenFlow Data Centers networks , 2014, 2014 IEEE Network Operations and Management Symposium (NOMS).

[2]  Yueping Zhang,et al.  Evaluating the impact of data center network architectures on application performance in virtualized environments , 2010, 2010 IEEE 18th International Workshop on Quality of Service (IWQoS).

[3]  Piero Castoldi,et al.  Network virtualization for cloud computing , 2010, Ann. des Télécommunications.

[4]  Lisandro Zambenedetti Granville,et al.  On tackling virtual data center embedding problem , 2013, 2013 IFIP/IEEE International Symposium on Integrated Network Management (IM 2013).

[5]  Fulvio Risso,et al.  Research Directions in Network Service Chaining , 2013, 2013 IEEE SDN for Future Networks and Services (SDN4FNS).

[6]  Vasileios Pappas,et al.  Improving the Scalability of Data Center Networks with Traffic-aware Virtual Machine Placement , 2010, 2010 Proceedings IEEE INFOCOM.

[7]  Stefano Giordano,et al.  Datacenter in a Box: Test Your SDN Cloud-Datacenter Controller at Home , 2013, 2013 Second European Workshop on Software Defined Networks.