Lync Server 2013 的负载平衡要求Load balancing requirements for Lync Server 2013

 

上次修改的主题: 2012-10-05Topic Last Modified: 2012-10-05

如果有前端池、控制器池或边缘服务器池,则需要为这些池部署负载平衡。If you have Front End pools, Director pools, or Edge Server pools, you need to deploy load balancing for these pools. 负载平衡会将流量分配到池中的各台服务器上。Load balancing distributes the traffic among the servers in a pool.

Lync Server 2013 支持两种类型的用于客户端到服务器流量的负载平衡解决方案:域名系统 (DNS) 负载平衡和硬件负载平衡。Lync Server 2013 supports two types of load balancing solutions for client-to-server traffic: Domain Name System (DNS) load balancing and hardware load balancing. DNS 负载平衡提供了多项优势,包括更简单的管理、更高效的故障排除以及从任何潜在的硬件负载平衡器问题中隔离大部分 Lync Server 流量的功能。DNS load balancing offers several advantages including simpler administration, more efficient troubleshooting, and the ability to isolate much of your Lync Server traffic from any potential hardware load balancer problems.

在决定哪种负载平衡解决方案适合您部署中的每个池时,请记住以下限制:Decide which load balancing solution is appropriate for each pool in your deployment, keeping in mind the following restrictions:

  • 内部边缘接口和外部边缘接口必须使用同一类型的负载平衡。您不能在一个接口上使用 DNS 负载平衡的同时,在另一个接口上使用硬件负载平衡。The internal Edge interface and external Edge interface must use the same type of load balancing. You cannot use DNS load balancing on one interface and hardware load balancing on the other.

  • 某些类型的流量需要硬件负载平衡器。例如,HTTP 流量需要硬件平衡负载器而非 DNS 负载平衡。DNS 负载平衡对客户端到服务器的 Web 流量不起作用。Some types of traffic require a hardware load balancer. For example, HTTP traffic requires a hardware load balancer instead of DNS load balancing. DNS load balancing does not work with client-to-server web traffic.

有关选择硬件负载平衡器解决方案的更多详细信息,请参阅 Lync Server 2013 的硬件负载平衡器要求For more details about choosing a hardware load balancer solution, see Hardware load balancer requirements for Lync Server 2013.

如果选择对某个池使用 DNS 负载平衡,但仍需对流量(如 HTTP 流量)使用硬件负载平衡器,则会大大简化硬件负载平衡器的管理。If you choose to use DNS load balancing for a pool but still need to implement hardware load balancers for traffic such as HTTP traffic, the administration of the hardware load balancers is greatly simplified. 例如,配置硬件负载平衡器会更简单,因为它将只管理 HTTP 和 HTTPS 流量,而所有其他协议都将通过 DNS 负载平衡进行管理。For example, configuring the hardware load balancer will be simpler as it will only manage the HTTP and HTTPS traffic, while all other protocols will be managed by DNS load balancing. 有关详细信息,请参阅 Lync Server 2013 中的 DNS 负载平衡For details, see DNS load balancing in Lync Server 2013.

对于服务器到服务器的流量,Lync Server 2013 使用拓扑感知负载平衡。For server-to-server traffic, Lync Server 2013 uses topology-aware load balancing. 服务器在中央管理存储中读取已发布的拓扑,以获取拓扑中的服务器的 Fqdn,并自动在服务器之间分布流量。Servers read the published topology in the Central Management store to obtain the FQDNs of servers in the topology, and automatically distribute the traffic among the servers. 管理员无需设置或管理此类型的负载平衡。Administrators do not need to set up or manage this type of load balancing.

如果使用 DNS 负载平衡,并且需要阻止到特定计算机的流量,则只需从池 FQDN 中删除 IP 地址条目是不够的。If you use DNS load balancing and you need to block traffic to a specific computer, it is not sufficient to just remove the IP address entries from the Pool FQDN. 您还必须删除计算机的 DNS 条目。You must remove the DNS entry for the computer as well.