Towards Bandwidth Guarantee In Multi-tenancy
Cloud Computing Networks
Jing Zhu*, Dan Li*, Jianping Wu*, Hongnan Liu*, Ying Zhang
t
, Jingcheng Zhang*
efciently utilize their infrastructure and thus
increase their revenue, cloud providers need mechanisms to
provide resource allocation and performance isolation for dif
ferent tenants in the shared platform. In particular, network
bandwidth sharing is a critical yet still an open problem to
most cloud providers. In this paper, we study the problem
of virtual machine (VM) allocation under the consideration of
providing bandwidth guarantees. We rst propose an online
allocation algorithm for tenants with homogeneous bandwidth
demand, which improves on the accuracy of existing algorithms.
Subsequently, we extend it to handle heterogeneous bandwidth
demand. Extensive simulations show that our algorithm makes
much more ecient utilization of the network resource than
existing algorithms, and performs close to the optimal oine
allocation.