Updated June 2014 - Lync Server is a real-time unified communications application that relies on an optimized network infrastructure to deliver high-quality media sessions. This guide provides a model for managing the network infrastructure for Lync Server 2010 and Lync Server 2013—planning, monitoring, and troubleshooting.
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An updated version of the Networking Guide is now available including the new Microsoft Call Quality Methodology Scorecard for Lync Server. This scorecard should be used to implement the Lync Call Quality Methodology or CQM as outlined in Appendix C. CQM is a holistic way to systematically define and assert call quality based upon the methods outlined in the Networking Guide. CQM divides a Lync implementation into ten discrete areas that impact quality, defining targets and a remediation plan for each one. CQM is a framework to tackle call quality problems – you can modify or extend it to address the particular conditions on your network. Appendix D includes techniques to troubleshoot poor streams that CQM surfaces.
The Networking Guide download now includes the list of Lync Server 2010 and an updated list of Lync Server 2013 KHIs to validate server health, a complete set of CQM queries, and a PowerShell script file to collect KHI data.
Lync Server communications software is a real-time unified communications application that enables peer-to-peer audio and video (A/V) calling, conferencing, and collaboration and relies on an optimized, reliable network infrastructure to deliver high-quality media sessions between clients. This guide provides a model for managing the network infrastructure for Lync Server 2010 and Lync Server 2013, consisting of three phases—planning, monitoring, and troubleshooting. These phases can apply to new Lync Server deployments or to existing deployments. In new Lync Server deployments, your organization must begin from the planning phase. In existing deployments, your organization can start at the planning phase for major upgrades or for integrating new sites into the Lync Server ecosystem. Organizations with existing deployments can also begin from the monitoring or troubleshooting phases, if you are trying to achieve a healthy state.
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TechEd NA 2014 session http://channel9.msdn.com/Events/TechEd/NorthAmerica/2014/OFC-B347#fbid