Lync Server 2013 的負載平衡需求Load balancing requirements for Lync Server 2013

 

主題上次修改日期: 2012-10-05Topic Last Modified: 2012-10-05

如果您有前端集區、Director 集區或 Edge Server 集區,則需要為這些集區部署負載平衡。If you have Front End pools, Director pools, or Edge Server pools, you need to deploy load balancing for these pools. 負載平衡會在集區中的伺服器之間分散流量。Load balancing distributes the traffic among the servers in a pool.

Lync Server 2013 支援用戶端對伺服器流量的兩種負載平衡解決方案:網域名稱系統 (DNS) 負載平衡與硬體負載平衡。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 負載平衡提供數種優點,包括簡化管理、更有效率的疑難排解,以及隔離任何可能的「Lync Server」流量以避免任何可能的硬體負載平衡器問題的功能。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.

決定哪一種負載平衡解決方案適合您部署中的每個集區,請記住下列限制:Decide which load balancing solution is appropriate for each pool in your deployment, keeping in mind the following restrictions:

  • 內部 Edge 介面和外部 Edge 介面必須使用相同類型的負載平衡。The internal Edge interface and external Edge interface must use the same type of load balancing. 您無法在一個介面上使用 DNS 負載平衡,另一個在另一個介面上使用硬體負載平衡。You cannot use DNS load balancing on one interface and hardware load balancing on the other.

  • 某些類型的流量需要硬體負載平衡器。Some types of traffic require a hardware load balancer. 例如,HTTP 流量需要硬體負載平衡器,而不是使用 DNS 負載平衡。For example, HTTP traffic requires a hardware load balancer instead of DNS load balancing. DNS 負載平衡無法搭配用戶端對伺服器的 web 流量使用。DNS load balancing does not work with client-to-server web traffic.

如需選擇硬體負載平衡器解決方案的詳細資訊,請參閱 Lync Server 2013 的硬體負載平衡器需求For more details about choosing a hardware load balancer solution, see Hardware load balancer requirements for Lync Server 2013.

如果您選擇針對集區使用 DNS 負載平衡,但仍需要針對流量(例如 HTTP 流量)執行硬體負載平衡器,則可大幅簡化硬體負載平衡器的管理。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,設定硬體負載平衡器會變得更簡單,因為它只會管理 HTTP 和 HTTPS 流量,而所有其他通訊協定都會透過 DNS 負載平衡來管理。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. 如需詳細資訊,請參閱 Lync Server 2013 中的 DNS 負載平衡For details, see DNS load balancing in Lync Server 2013.

針對伺服器對伺服器流量,Lync Server 2013 使用拓撲感知負載平衡。For server-to-server traffic, Lync Server 2013 uses topology-aware load balancing. 伺服器讀取中央管理存放區中已發佈的拓撲,以取得拓撲中的伺服器 Fqdn,並在伺服器間自動散佈流量。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. 管理員不需要設定或管理這種類型的負載平衡。Administrators do not need to set up or manage this type of load balancing.

如果您使用 DNS 負載平衡,而且需要封鎖特定電腦的流量,只是移除集區 FQDN 的 IP 位址專案是不夠的。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. 您也必須移除電腦的 DNS 專案。You must remove the DNS entry for the computer as well.