Survivable cloud networking services

Many users are adopting cloud computing services to expand applications across interconnected data-centers. Since these new paradigms require common data exchange, they impose further virtual network (VN) mapping demands for operators. However, to guarantee reliable services, survivability is a key concern, especially for large regional stressors. Hence this paper presents a novel failure region-disjoint VN mapping scheme to achieve efficient survivability. Namely, the solution divides failure regions into two groups and then computes failure region-disjoint VN mapping pairs. The scheme is analyzed using simulation and compared against some existing survivable VN mapping schemes.