VirtualWire: system support for live migrating virtual networks across clouds

Virtualization Technologies in Distributed Computing Pub Date : 2013-06-18 DOI:10.1145/2465829.2465838

H. Jamjoom

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引用次数: 5

Abstract

Despite significant advances in enabling live virtual machine (VM) migration within a virtualized--cloud--infrastructure, cross-cloud live migration remains an ad hoc, complex process. To create a network environment in which live migration can occur, clouds are beginning to expose virtual networks as a service. Connecting, managing and maintaining membership and routing information for--possibly incompatible--virtual networks as VMs migrate between clouds is non-trivial for both cloud providers and cloud users. This talk presents VirtualWire, a system in which cloud providers offer--instead of a virtual network abstraction--a connect/disconnect primitive that is much easier to manage. VirtualWire offers cloud users a consistent method to create complex logical network topologies in which the virtual network fabric itself is able to be elastically stretched or live migrated within or between clouds. Leveraging nested virtualization, we have implemented and evaluated VirtualWire across third-party clouds, including Amazon EC2, achieving cross-cloud live migration of VMs and network components with as low as 1.4 s of downtime.

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VirtualWire:系统支持跨云实时迁移虚拟网络

尽管在虚拟化——云——基础设施中支持实时虚拟机(VM)迁移方面取得了重大进展，但跨云实时迁移仍然是一个特殊的、复杂的过程。为了创建可以进行实时迁移的网络环境，云开始将虚拟网络作为服务公开。当vm在云之间迁移时，连接、管理和维护虚拟网络的成员资格和路由信息(可能不兼容)对于云提供商和云用户来说都是非常重要的。这次演讲介绍了VirtualWire，在这个系统中，云提供商提供了一个更容易管理的连接/断开原语，而不是虚拟网络抽象。VirtualWire为云用户提供了一种创建复杂逻辑网络拓扑的一致方法，在这种方法中，虚拟网络结构本身能够在云内部或云之间进行弹性拉伸或实时迁移。利用嵌套虚拟化，我们已经跨第三方云(包括Amazon EC2)实现和评估了VirtualWire，实现了虚拟机和网络组件的跨云实时迁移，停机时间低至1.4秒。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Virtualization Technologies in Distributed Computing

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