Fault-tolerant IaaS management for networked cloud infrastructure with SDN
Heli Amarasinghe, Abdallah Jarray, Ahmed Karmouch · 2017
In this work, we have introduced a fault tolerant IaaS resource management framework for networked cloud Infrastructure. Distributed multiple cloud provider sites (i.e. datacenters) are interconnected with software defined network (SDN). Both datacenter and SDN resources are allocated by formulating and solving integer linear programming based virtual network embedding problem. Two reactive traffic engineering network failure restoration algorithms have been added to the framework along with SDN-based monitoring scheme to dynamically identify and recover from unexpected link failures. We have implemented the framework on an emulated SDN testbed and evaluated the performance of aforementioned algorithms with multiple link failures. Experimental results demonstrate tradeoffs of proposed approaches and their applicability in different application scenarios.