什么是流量管理器?What is Traffic Manager?

Azure 流量管理器是基于 DNS 的流量负载均衡器。Azure Traffic Manager is a DNS-based traffic load balancer. 此服务让你可以在全球 Azure 区域将流量分布到面向公众的应用程序。This service allows you to distribute traffic to your public facing applications across the global Azure regions. 流量管理器还提供具有高可用性和快速响应能力的公共终结点。Traffic Manager also provides your public endpoints with high availability and quick responsiveness.

流量管理器根据流量路由方法,使用 DNS 将客户端请求定向到合适的服务终结点。Traffic Manager uses DNS to direct the client requests to the appropriate service endpoint based on a traffic-routing method. 流量管理器还为每个终结点提供运行状况监视功能。Traffic manager also provides health monitoring for every endpoint. 终结点可以是托管在 Azure 内部或外部的任何面向 Internet 的服务。The endpoint can be any Internet-facing service hosted inside or outside of Azure. 流量管理器提供多种流量路由方法终结点监视选项来满足不同的应用程序需求和自动故障转移模型。Traffic Manager provides a range of traffic-routing methods and endpoint monitoring options to suit different application needs and automatic failover models. 流量管理器能够灵活应对故障,包括整个 Azure 区域的故障。Traffic Manager is resilient to failure, including the failure of an entire Azure region.

备注

Azure 为方案提供了一套完全托管的负载均衡解决方案。Azure provides a suite of fully managed load-balancing solutions for your scenarios.

  • 若要在应用程序层某个区域中的服务器之间实现负载均衡,请查看应用程序网关If you want to load balance between your servers in a region at the application layer, review Application Gateway.
  • 若要执行网络层负载均衡,请查看负载均衡器To do network layer load balancing, review Load Balancer.

流量管理器提供了以下功能:Traffic Manager offers the following features:

提高应用程序可用性Increase application availability

流量管理器可以监视终结点,在终结点发生故障时提供自动故障转移,实现关键应用程序的高可用性。Traffic Manager delivers high availability for your critical applications by monitoring your endpoints and providing automatic failover when an endpoint goes down.

改善应用程序性能Improve application performance

在 Azure 中,可以运行位于世界各地的数据中心内的云服务和网站。Azure allows you to run cloud services and websites in datacenters located around the world. 流量管理器可以将流量以尽可能低的延迟定向到终结点,从而提高网站的响应能力。Traffic Manager can improve the responsiveness of your website by directing traffic to the endpoint with the lowest latency.

在不停机的情况下进行服务维护Service maintenance without downtime

无需停机即可对应用程序进行计划内维护。You can have planned maintenance done on your applications without downtime. 当维护正在进行时,流量管理器可以将流量定向到备用终结点。Traffic Manager can direct traffic to alternative endpoints while the maintenance is in progress.

组合混合应用程序Combine hybrid applications

流量管理器支持外部非 Azure 终结点,因此可以用于混合云部署和本地部署,包括“云爆发”、“云迁移”和“云故障转移”方案。Traffic Manager supports external, non-Azure endpoints enabling it to be used with hybrid cloud and on-premises deployments, including the "burst-to-cloud," "migrate-to-cloud," and "failover-to-cloud" scenarios.

分发复杂部署的流量Distribute traffic for complex deployments

使用嵌套式流量管理器配置文件,可以组合使用多种流量路由方法来创建复杂、灵活且可缩放的规则来满足更大、更复杂部署的需求。Using nested Traffic Manager profiles, multiple traffic-routing methods can be combined to create sophisticated and flexible rules to scale to the needs of larger, more complex deployments.

定价Pricing

有关定价信息,请参阅流量管理器定价For pricing information, see Traffic Manager Pricing.

后续步骤Next steps