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

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Enhanced Federation

Enhanced federation lifts a security limit imposed within dynamic federation in which an Edge Server will accept only up to 20 SIP messages each second from a partner’s Edge Server. This is a reasonable limit for many organizations, and it helps prevent a partner’s Edge Server from overwhelming a business’s own Edge Server and possibly impacting other services such as remote access.

Enabling enhanced federation for a domain removes this “20 messages per second” limit for the specified partner’s SIP domain, but this obviously requires some form of administrator configuration. Organizations should identify partners they will federate with and plan to enable enhanced federation with those partners. Edge Servers will log events ...

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