Fair network bandwidth allocation in iaa s datacenters via a cooperative game approach
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This paper presents a cooperative game approach for fair network bandwidth allocation in IaaS datacenters, addressing the lack of VM-level guarantees. The proposed algorithm, FALLoc, enables bandwidth to be allocated based on VMs' base requirements while sharing residual bandwidth proportionally. Experimentation shows that FALLoc achieves fairness and high utilization across datacenter networks.
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Fair network bandwidth allocation in iaa s datacenters via a cooperative game approach
- 1. Fair Network Bandwidth Allocation in IaaS Datacenters via a Cooperative Game Approach Abstract: With wide application of virtualization technology, tenants are able to access isolated cloud services by renting the shared resources in Infrastructure-as-a- Service (IaaS) datacenters. Unlike resources such as CPU and memory, datacenter network, which relies on traditional transport-layer protocols, suffers unfairness due to a lack of virtual machine (VM)-level bandwidth guarantees. In this paper, we model the datacenter bandwidth allocation as a cooperative game, toward VM-based fairness across the datacenter with two main objectives: 1) guarantee bandwidth for VMs based on their base bandwidth requirements, and 2) share residual bandwidth in proportion to the weights of VMs. Through a bargaining game approach, we propose a bandwidth allocation algorithm, Falloc, to achieve the asymmetric Nash bargaining solution (NBS) in datacenter networks, which exactly meets our objectives. The cooperative structure of the algorithm is exploited to develop an online algorithm for practical real-world implementation. We validate Falloc with experiments under diverse scenarios and show that by adapting to different network requirements of VMs, Falloc can achieve fairness among VMs and balance the tradeoff between bandwidth guarantee and proportional bandwidth sharing. Our large-scale trace-driven simulations verify that Falloc achieves high utilization while maintaining fairness among VMs in datacenters.