Reference Architecture 1: Single Consolidated Edge
Topic Last Modified: 2012-07-14
If your organization requires support for fewer than 15,000 Access Edge service client connections, 1,000 active Lync Server Web Conferencing service client connections, and 500 concurrent A/V Edge sessions, and high availability of the Edge Server is not important, this topology offers the advantages of lower hardware cost and simpler deployment. If you need greater capacity or you require high availability, you need to deploy the scaled consolidated Edge Server topology. For details, see Reference Architecture 2: Scaled Consolidated Edge (DNS Load Balanced).
For simplicity, the following figure does not show any Directors deployed but in a real world production deployment they are recommended. For details about the topology for Directors, see Components and Topologies for Director.
The associated figure, topic on port summary and usage depicts the use of private IP addresses for the Edge Servers. You can also use public IP addresses for each Edge Server external interface and not use NAT. The use of public or private IP addresses is a choice that you make, but you should be aware that the use of public IP addresses increases the number of public IP addresses required for deployment. For details, see Choosing a Topology.
For clarity, the .com DNS zone represents the external interface for both reverse proxy and consolidated edge servers, and the .net DNS zone refers to the internal interfaces. Depending on how your DNS is configured, both interfaces could be in the same zone (for example, in a split-brain DNS configuration).
Hardware Load Balancer Configuration
For details, see the “Hardware Load Balancer Requirements for A/V Edge” section in Components Required for External User Access.
The Lync Server 2010 update that introduced mobility features – formally known as Cumulative Update for Lync Server 2010: November 2011 – is covered in detail in the Planning Mobility and Deploying Mobility sections. If you are planning to deploy mobility, refer to these topics for important planning and deployment information that will affect your decisions. For details, see Planning for Mobility and Deploying Mobility.
Single consolidated edge topology