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Microsoft® Lync® Server 2013 Unleashed Second Edition by Randy Wintle, Alex Lewis, David Ross, Tom Pacyk

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Hardware and Software Load Balancers

As with Lync Server 2010, in Lync Server 2013 Enterprise pools, HTTP connections require a load balancer. This is typically a physical hardware load balancer, but a number of software load balancers, which can run virtualized, are supported.

At the time of writing, the following software load balancers are supported:

• A10 Networks 64-bit AX Series

• Citrix Systems Netscaler VPX

• KEMP LoadMaster VLM-100, VLM-1000

• Riverbed Technology Stingray Traffic Manager

Again, if these virtual appliances are to be collocated on a host with Lync Servers, their virtual hardware requirements should be considered. Be aware of any limitations in scalability of virtual load balancers in comparison to their hardware equivalents. ...

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