Lync Server 2013 的网络基础结构要求Network infrastructure requirements for Lync Server 2013

 

上次修改的主题: 2012-10-18Topic Last Modified: 2012-10-18

Lync Server 2013 拓扑中每台服务器的网络适配器卡必须至少支持1千兆位/秒 (Gbps) 。The network adapter card of each server in the Lync Server 2013 topology must support at least 1 gigabit per second (Gbps). 通常情况下,应使用低延迟和高带宽本地局域网 (LAN) 在 Lync Server 拓扑中连接所有服务器角色。In general, you should connect all server roles within the Lync Server topology using a low latency and high bandwidth local area network (LAN). LAN 的大小取决于拓扑的大小:The size of the LAN is dependent on the size of the topology:

  • 在标准版拓扑中,服务器应位于支持 1 Gbps 以太网或等效项的网络中。In Standard Edition topologies, servers should be in a network that supports 1 Gbps Ethernet or equivalent.

  • 在前端池拓扑中,大多数服务器应位于支持超过 1 Gbps 的网络中,尤其是在支持音频/视频 (A/V) 会议和应用程序共享时。In Front End pool topologies, most servers should be in a network that supports more than 1 Gbps, especially when supporting audio/video (A/V) conferencing and application sharing.

对于公用电话交换网 (PSTN) 集成,可以使用 T1/E1 线路或 SIP 中继进行集成。For public switched telephone network (PSTN) integration, you can integrate by using either T1/E1 lines or SIP trunking.

音频/视频网络要求Audio/Video Network Requirements

在 Lync Server 部署中,音频/视频 (A/V) 的网络要求包括以下各项:Network requirements for audio/video (A/V) in a Lync Server deployment include the following:

  • 如果要使用 DNS 负载平衡部署单个边缘服务器或边缘池,则可以将外部防火墙配置为 NAT。If you are deploying a single Edge Server or an Edge pool using DNS load balancing, you can configure the external firewall as a NAT. 不能配置内部防火墙作为 NAT。You cannot configure the internal firewall as a NAT. 有关这些要求的详细信息,请参阅规划文档中的 确定 Lync Server 2013 的外部 A/V 防火墙和端口要求For details about these requirements, see Determine external A/V firewall and port requirements for Lync Server 2013 in the Planning documentation.

    重要

    如果你有一个边缘池,并且使用的是硬件负载平衡器,则必须在每台边缘服务器上使用公用 IP 地址,并且无法将 NAT 用于 NAT 设备上的服务器或池 (例如,防火墙或将 NAT 入站或出站通信) 的其他基础结构设备。If you have an Edge pool and are using a hardware load balancer, you must use public IP addresses on each of the Edge Servers and you cannot use NAT for the servers or the pool at your NAT device (for example, the firewall, or other infrastructure device that would NAT inbound or outbound traffic). 有关详细信息,请参阅规划外部用户访问文档中的在 Lync Server 2013 中的端口摘要-扩展的合并边缘和硬件负载平衡 器。For details, see Port summary - Scaled consolidated edge with hardware load balancers in Lync Server 2013 in the Planning for External User Access documentation.

  • 如果您的组织使用了服务质量 (QoS) 基础结构,则媒体子系统应设计为在此现有基础结构中工作。If your organization uses a Quality of Service (QoS) infrastructure, the media subsystem is designed to work within this existing infrastructure.

  • 如果使用 Internet 协议安全性 (IPsec),建议在用于 A/V 流量的端口范围内禁用 IPsec。If you use Internet Protocol security (IPsec), we recommend disabling IPsec over the port ranges used for A/V traffic. 有关详细信息,请参阅规划文档中的 Lync Server 2013 中的 IPsec 例外For details, see IPsec exceptions in Lync Server 2013 in the Planning documentation.

要确保最佳媒体质量,请执行以下操作:To ensure optimal media quality, do the following:

  • 设置网络链接,使之在高峰使用时段支持每个音频流 65 千位每秒 (Kbps) 和每个视频流(如果启用)500 Kbps 的吞吐量。一个双向音频或视频会话由两个流构成。Provision your network links to support throughput of 65 kilobits per second (Kbps) per audio stream and 500 Kbps per video stream, if enabled, during peak usage periods. A bidirectional audio or video session consists of two streams.

  • 若要处理此级别以上流量中的意外峰值和时间增加的使用率,Lync Server 媒体终结点可适应不同的网络条件,并支持三倍于吞吐量的负载。在仍然保留可接受质量的同时, (查看上一段) 的音频和视频。To cope with unexpected spikes in traffic above this level and increased usage over time, Lync Server media endpoints can adapt to varying network conditions and support loads of three times the throughput (see previous paragraph) for audio and video while still retaining acceptable quality. 但是,不要认为这种适应性能支持未充分设置的网络。However, do not assume that this adaptability will support an under-provisioned network. 在预配网络中,Lync Server 媒体终结点能够动态处理不同的网络 (条件,例如,降低了临时数据包丢失) 。In an under-provisioned network, the ability of the Lync Server media endpoints to dynamically deal with varying network conditions (for example, temporary high packet loss) is reduced.

  • 如果网络链路的设置成本很高,而且难于操作,可能就需要考虑设置较低的流量。For network links where provisioning is extremely costly and difficult, you may need to consider provisioning for a lower volume of traffic. 在这种情况下,让 Lync Server 媒体终结点的弹性能够吸收流量量与峰值流量水平之间的差异,以降低语音质量的成本为代价。In this scenario, let the elasticity of the Lync Server media endpoints absorb the difference between the traffic volume and the peak traffic level, at the cost of some reduction in the voice quality. 此外,可用于吸收流量中的突发峰值的空间也会减少。Also, there is a decrease in the headroom otherwise available to absorb sudden peaks in traffic.

  • 对于短期内无法正确配置的链路(例如 WAN 链路很差的站点),考虑对某些用户禁用视频。For links that cannot be correctly provisioned in the short term (for example, a site with very poor WAN links), consider disabling video for certain users.

  • 配置网络,确保在高峰负载下的最大端到端延迟为 150 毫秒 (ms)。Provision your network to ensure a maximum end-to-end delay (latency) of 150 milliseconds (ms) under peak load. 延迟是 Lync Server 媒体组件无法降低的网络障碍,查找和消除薄弱点很重要。Latency is the one network impairment that Lync Server media components cannot reduce, and it is important to find and eliminate the weak points.

  • 对于运行防病毒软件的服务器,请在例外列表中包括运行 Lync Server 的所有服务器,以便提供最佳性能和音频质量。For servers running antivirus software, include all servers running Lync Server in the exception list in order to provide optimal performance and audio quality.

会议网络要求Conferencing Network Requirements

从 Internet 信息服务 (IIS) server 中下载会议内容所使用的带宽取决于上载的内容的大小。The bandwidth that is used to download conference content from the Internet Information Services (IIS) server depends on the size of the content that is uploaded.