2010/05/28 by Wai-Leong Yeow, Yeow, Wai-Leong, Cédric Westphal +3
Computer Science · Engineering · #Cloud Computing and Resource Management #FOS: Computer and information sciences #Networking and Internet Architecture (cs.NI) #Smart Grid Security and Resilience #Software-Defined Networks and 5G
paper · pdf · doi:10.48550/arxiv.1005.5367
openalex publication_date 2010/05/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In a virtualized infrastructure where physical resources are shared, a single physical server failure will terminate several virtual servers and crippling the virtual infrastructures which contained those virtual servers. In the worst case, more failures may cascade from overloading the remaining servers. To guarantee some level of reliability, each virtual infrastructure, at instantiation, should be augmented with backup virtual nodes and links that have sufficient capacities. This ensures that, when physical failures occur, sufficient computing resources are available and the virtual network topology is preserved. However, in doing so, the utilization of the physical infrastructure may be greatly reduced. This can be circumvented if backup resources are pooled and shared across multiple virtual infrastructures, and intelligently embedded in the physical infrastructure. These techniques can reduce the physical footprint of virtual backups while guaranteeing reliability.