Hardware Balancing Microsoft Exchange

and Microsoft Lync

High Availability, high-performance communication …anytime, anywhere.

The big changes Microsoft has made to its core server architecture in Exchange 2010 create exciting new opportunities to manage the server infrastructure for always-on reliability and cluster-enabled application acceleration. Most important of these is Microsoft’s Exchange 2010 strategy to emphasize scale-out, rather than scale-up, making the right load balancing solution more critical than ever. Now that Exchange Client Access Server (CAS) is used to handle all client connections, there’s a well-defined endpoint for managing the delivery of an optimal user experience.

KEMP LoadMaster combines versatility with ease-of-use to speed deployment (see our step-by-step guidelines in the LoadMaster Deployment Guide for Load Balancing MS Exchange 2010) of the complete portfolio of advanced messaging applications and protocols used by Exchange 2010, including Outlook Web Access, Outlook Anywhere, ActiveSync, SMTP, POP3 and IMAP and RPC Client Access (Native MAPI). With built-in SSL acceleration and/or overlay, the LoadMaster offloads a key source of CPU drain to improve the capacity of Client Access Servers. Layer 7 healthchecking at the LoadMaster ensures that should one of the servers become inaccessible, the load balancer will take that server off-line, while automatically re-routing and reconnecting users to other functioning servers. Not quite ready to make the move to Exchange 2010? KEMP LoadMasters integrate seamlessly with earlier versions of Exchange as well.

An enterprise highly available deployment of Microsoft Lync Server requires deploying multiple servers in Front End pools, Director pools, and or Edge Server pools, Load balancing is necessary when using multiple servers in a pool and a Load Balancer distributes the traffic among the servers.
Microsoft Lync Server 2010 supports two load balancing solutions: DNS load balancing and hardware load balancing. You can choose different load balancing solutions for each pool in your deployment. Hardware load balancers are also required to provide load balancing for the internal and external web services when DNS load balancing is used.

The KEMP LoadMaster combines versatility with ease-of-use to speed deployment of the complete portfolio of advanced messaging applications and protocols used by Microsoft Lync Server 2010. Layer 7 health checking at the LoadMaster ensures that should one of the servers become inaccessible, the load balancer will take that server off-line, while automatically re-routing and reconnecting users to other functioning servers.

The entire KEMP LoadMaster product line supports Exchange and Lync, and includes a comprehensive first year warranty and technical support agreement. To learn more about how LoadMaster can help keep communication channels reliable and fast contact us.

Example Exchange 2010 Environment with LoadMaster

Example Lync Environment with LoadMaster

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