IaaS环境下虚拟机运行时VIF策略动态加载机制

发布时间：2018-10-23 17:56

【摘要】：针对采用VEB(virtual ethernet bridge)模式的IaaS(infrastructure as a service)虚拟网络架构面临的虚拟机网络策略有效性问题,研究保障虚拟机全生命周期网络策略有效性的策略动态加载机制。通过解耦合虚拟机网络策略于虚拟机默认配置文件、分析影响虚拟机网络策略有效性的因素并定义虚拟机网络策略加载要素,提出了虚拟机运行时VIF(virtual network interface)网络策略动态加载机制,以虚拟机状态变化过程为依据选取合适时间点加载网络策略至正确位置。实验结果表明,该机制可以在毫秒级耗时内完成虚拟机网络策略加载,保障虚拟机在全生命周期中不出现策略空白;同时,基于虚拟机网络策略的独立性,该机制可按需扩展网络策略并支持虚拟机运行时策略动态变更。
[Abstract]:In order to solve the problem of virtual machine network policy effectiveness in IaaS (infrastructure as a service) virtual network architecture based on VEB (virtual ethernet bridge) mode, this paper studies the policy dynamic loading mechanism to ensure the virtual machine lifetime network policy effectiveness. By decoupling the virtual machine network policy into the virtual machine default configuration file, the factors that affect the virtual machine network policy effectiveness are analyzed and the virtual machine network policy loading elements are defined. A dynamic loading mechanism of VIF (virtual network interface) network policy is proposed when the virtual machine is running. According to the process of virtual machine state change, the network policy is loaded to the correct position at the appropriate time point according to the process of virtual machine state change. Experimental results show that the mechanism can complete the policy loading of virtual machine network in millisecond, and ensure that there is no policy blank in the whole life cycle of virtual machine, at the same time, based on the independence of virtual machine network policy, the network policy of virtual machine can be loaded in millisecond. This mechanism can extend network policy on demand and support dynamic change of virtual machine runtime policy.
【作者单位】：四川大学计算机学院网络与可信计算研究所;
【基金】：国家科技支撑计划资助课题(2012BAH18B05)
【分类号】：TP302

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