Data center networks (DCNs) have become more extensively applied in cloud computing in recent years. One important mission for DCNs is satisfying the fluctuation of on-demand resources for tenants. During the scaling of virtual clusters (VCs). existing works fail to fully consider placement techniques and the elasticity of the physical resource in the DCN at the same time. https://www.ealisboa.com/bargain-1984-2001-Jeep-Cherokee-XJ-Front-Suspension-Lift-Kit-Bilstein-Shocks-2WD-4WD-flash-choice/