Xiangying Zhu

Learn More
Cloud data centers today usually lack network resource isolation. Meanwhile, it is easy to deploy and terminate large number of malicious virtual machines (VMs) in a few seconds while the administrator is probably difficult to identify these malicious VMs immediately. These features open doors for attackers to launch denial-of-service (DoS) attacks that(More)
Network bandwidth is a critical resource for tenants in cloud datacenter. Early researches assume that tenants are aware of bandwidth demands of the virtual machines, and a fixed bandwidth capacity can be satisfying. However, bandwidth demands of different virtual machines are complex and time-varying and it is insufficient to re-allocate the resource when(More)
  • 1