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Microsoft® Lync Server 2010 Unleashed by Tom Pacyk, Andrew Abbate, Alex Lewis

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Hardware Load Balancer Configuration

This section discusses the hardware load balancer configuration for an Edge Server. There are two perspectives to look at for load balancing Edge Servers because the external-facing adapter and internal-facing adapter have their own requirements. An Edge Server must be load balanced on both sides to function properly, but each side has slightly different requirements.

Warning

Many load balancers have the option to balance “All Ports” for a given pool. Avoid this configuration, no matter how tempting and easy it seems. Instead, load balance only the ports found in the tables that follow.

Starting with the external interfaces, the load balancer should have three publicly routable virtual IP (VIP) addresses: ...

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