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High Availability, high-performance load balancing for MS Lync Server

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 (see our step-by-step guidelines in the LoadMaster Deployment Guide for Load Balancing Microsoft Lync 2010) 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 family, including the Virtual LoadMaster (VLM) supports Microsoft Lync 2010, and includes a comprehensive first year warranty and technical support agreement. To learn more about how KEMP's Loadmaster can be used as part of your Microsoft Lync Deployment please contact us for a free full functional trial.

High Availability, high-performance Load Balancers for Exchange 2010

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.

The entire KEMP LoadMaster product line supports Exchange, and includes a comprehensive first year warranty and technical support agreement starting at only € 1.300. To learn more about how LoadMaster can help keep communication channels reliable and fast contact us. View our LoadMaster Sizing Guide for MS Exchange to see which of our products is best for you.

The LoadMaster LM Exchange and Virtual LoadMaster VLM Exchange are purpose built for Microsoft Exchange 2010.

Bringing Affordable Server Load Balancing to Windows Terminal Services

KEMP Technologies now offers full support for Microsoft Windows Terminal Services (WTS). With the addition of WTS, KEMP delivers a solution that helps organizations best maximize the efficiency and effectiveness of their networks, at an SMB-affordable price point.With WTS enabled, users are able to maintain persistence as well as perform resource monitoring for Window servers running multiple services. The LoadMaster resource monitoring feature offers useful data on both memory and CPU, ensuring users experience the most efficient load balancing possible on each server.

KEMP is also now able to integrate seamlessly with MS Session Directory - providing a more reliable re-connect when a remote desktop connection to the server is disconnected. While the LoadMaster provides full support for Microsoft's Session Directory, one of the most distinguishing features is its ability to provide RDP-based Layer 7 Persistence. The LoadMaster's Layer 7 Persistence incorporates client session reconnect, which can be utilized without the need for the Session Directory service to be installed.

Additional benefits of WTS include service checking for servers running Microsoft WTS, and extended capabilities for the increasing segment of remote workers. The KEMP product line currently includes five hardware models - the LoadMaster LM-2200, LM-2600, LM-3600 and LM-5500 - as well as the Virtual LoadMaster (VLM) series. All of these models come WTS enabled, and include a comprehensive first year warranty and technical support agreement.

Bringing Affordable Server Load Balancing to E-Commerce

Today, according to even the most conservative estimates, the number of people and businesses that purchase goods and services on the Internet is well into hundreds of millions. Several leading experts are estimating the dollar value of these transactions to be in several hundreds of billions.

As a small or medium business (SMB) joining the e-Commerce world, you face a unique set of technical and business challenges to the design and management of your web and application infrastructure. In terms of technology, inadequate server capacity, scalability concerns, and fault-tolerant reliability, as well as the increasing size and complexity of e-Commerce applications, continue to place added pressures on your already over-burdened IT staff and budget.

A properly functioning site that is continuously up-and-running, while providing optimum performance is the key factor to the success of any e-Commerce initiative. Users of your site must be provided with a consistently positive experience, both in terms of performance and accessibility. Sluggishness in performance or inability to complete a transaction for any reason will invariably cause your users to go elsewhere, with potentially disastrous results to your bottom-line.
During the past five years, application delivery and server load balancers have emerged as one of the most important technologies in solving the problem of performance and accessibility for e-Commerce applications. In its most basic form, a load balancer provides the ability to direct users to the best performing, accessible server. Should one of the servers (or applications on that server) become inaccessible, the load balancer will take that server off-line, while automatically re-routing users to other functioning servers.
In addition, using various load balancing algorithms, an intelligent load balancer can distribute users to servers that offer the best possible performance by dynamically interrogating key server elements such as number of concurrent connections and CPU/memory utilization.
To further enhance and secure the user experience, more advanced load balancers also provide SSL acceleration. SSL acceleration in the load balancer enables you to offload the SSL handshake and encryption/decryption processes from the e-Commerce application servers. This offloading dramatically increases the servers performance, while decreasing the time and costs associated with server's SSL certificate management.


For years, large corporations and institutions with e-Commerce initiatives were able to take advantage of server load balancing technology to significantly improve performance, availability and scalability of their sites. However, at an average cost of over $40,000 per each redundant configuration, deploying intelligent server load balancing required fairly deep pockets. For a small-to-medium sized business, the high cost of acquisition placed this technology out of reach.

However, that has all changed with KEMP Technologies' introduction of the LoadMaster. Integrating powerful, stable, full-featured application delivery and server load balancing with the latest advancements in layer-7 content switching and SSL acceleration technologies, KEMP has created an ideal product for the small-to-medium e-Commerce business. At a starting price of only 1.890 €, including 1st year support, the LoadMaster family of products bring affordable, advanced e-Commerce technology to the SMB.

Bringing Affordable Server Load Balancing to Higher Education

The network needs of today's K-12, colleges and university campuses are continually growing. Whether increasing the efficiency of online student registration and content access, or improving communications between faculty, staff, and students, educational institutions are looking to optimize their current assets, while introducing new applications and services. This requires the capacity to accommodate peak loads, fast end-user response time, and a method to easily secure information and applications while on a limited budget. Network administrators need a solution to address these challenges that leverage existing network resources to provide increased capacity, while providing an architecture that enables cost-effective and flexible scaling capabilities as the demand grows.

Deploying high-performance, high-availability web and application infrastructure presents a unique set of technical and business challenges to the design and management of the underlining network infrastructure. In terms of technology, inadequate server capacity, scalability concerns, and fault-tolerant reliability, as well as the increasing size and complexity of applications, continue to place added pressures on an already over-burdened K-12, college and university IT staff and budget.


Ensuring proper functionality of critical applications that are continuously up-and-running, while providing optimum performance is the key factor to the success of any web and intranet application initiative. Users of these applications must be provided with a consistently positive experience, both in terms of performance and accessibility. Sluggishness in performance, or inability to access critical data such as student records and educational content in a timely manner may prove disastrous to the institution.

During the past five years, application delivery controllers and intelligent server load balancing has emerged as one of the most important technologies in solving the problem of performance and accessibility for mission-critical applications. In its most basic form, a load balancer provides the ability to direct users to the best performing, accessible server. Should one of the servers (or applications on that server) become inaccessible, the load balancer will take that server off-line, while automatically re-routing users to other functioning servers. In addition, using various load balancing algorithms, an intelligent load balancer can distribute users to servers that offer the best possible performance, by dynamically interrogating key server elements such as number of concurrent connections and CPU/memory utilization. To further enhance the user experience, several more advanced load balancers can provide SSL acceleration by offloading security encryption/decryption processes from application servers, thereby dramatically increasing their performance, while decreasing the time and costs associated with certificate management.

For years, large corporations and institutions with mission-critical application initiatives were able to take advantage of server load balancing technology to significantly improve performance, availability and scalability of their applications. However, at an average cost of over $40,000 per each redundant configuration, deploying intelligent server load balancing required fairly deep pockets. For smaller educational facilities or institutions with a tight IT budget, the high cost of acquisition had placed this technology out of reach, thereby significantly hampering their efforts in taking advantage of web-based applications.

However, that has all changed with KEMP Technologies' introduction of the LoadMaster. Integrating powerful, stable, full-featured application delivery and server load balancing with the latest advancements in layer-7 content switching and SSL acceleration technologies, KEMP has created an ideal product for the small-to-medium sized educational institutions. At a starting price of only 1.890 €, including 1st year support, the LoadMaster family of products bring affordable, advanced e-Commerce technology to the SMB.

Bringing Affordable Server Load Balancing to Healthcare

Advances in the medical arena are commonplace. E-Healthcare is rapidly becoming one of those advances - so rapid, in fact, that it has caught up to, and moved beyond the "buzz" that surrounded it in the late 1990s. Hospitals are deploying networked applications to compile computer-based patient records, to schedule physicians and facilities throughout the campus, to archive digital images, to support telemedicine programs, and to improve a host of other day-to-day operations.

In hospitals all around the world, real benefits are being achieved as these e-Healthcare applications have become more powerful and sophisticated, and the web and application infrastructure supporting them has become more efficient and cost-effective. Costs are being reduced, because processes are being streamlined, business operations are becoming more efficient, and patients are receiving more immediate and more effective care. More than anything else, e-Healthcare simply improves the way hospitals work.


Deploying high-performance, high-availability e-healthcare applications presents a unique set of technical and business challenges to the design and management of the underlining network infrastructure. In terms of technology, inadequate server capacity, scalability concerns, and fault-tolerant reliability, as well as the increasing size and complexity of e-healthcare applications continue to place added pressures on an already over-burdened IT staff and budget.

Ensuring proper functionality and availability of critical applications that must be continuously up-and-running, while providing optimum performance is the key factor to the success of any e-healthcare initiative. Users of these applications must be provided with a consistently positive experience, both in terms of performance and accessibility. Sluggishness in performance or inability to access critical data such as patient records in a timely manner may prove disastrous.

During the past five years, application delivery controllers and server load balancers have emerged as one of the most important technologies in solving the problem of performance and accessibility for mission critical applications. In its most basic form, a load balancer provides the ability to direct users to the best performing, accessible server. Should one of the servers (or applications on that server) become inaccessible, the load balancer will take that server off-line, while automatically re-routing users to other functioning servers. In addition, using various load balancing algorithms, an intelligent load balancer can distribute users to servers that offer the best possible performance by dynamically interrogating key server elements such as number of concurrent connections and CPU/memory utilization. To further enhance the user experience, more advanced load balancers can provide SSL acceleration by offloading security encryption/decryption processes from application servers, thereby dramatically increasing their performance, while decreasing the time and costs associated with certificate management.

For years, large corporations and institutions with mission-critical application initiatives were able to take advantage of server load balancing technology to significantly improve performance, availability and scalability of their applications. However, at an average cost of over $40,000 per each redundant configuration, deploying intelligent server load balancing required fairly deep pockets. For a small-to-medium sized hospital or healthcare facility, the high cost of acquisition has placed this technology out of reach, thereby significantly hampering their efforts in taking advantage of e-healthcare applications.

However, that has all changed with KEMP Technologies' introduction of the LoadMaster. Integrating powerful, stable, full-featured application delivery and server load balancing with the latest advancements in layer-7 content switching and SSL acceleration technologies, KEMP has created an ideal product for the small-to-medium healthcare institution. At a starting price of only 1.890 €, including 1st year support, the LoadMaster family of products brings affordable, advanced e-Commerce technology to the SMB.

Services Provider License Agreement (SPLA) Program

Our SPLA Program seeks to create a relationship with service providers to bring your customers the best value for the least cost. Our aggressive pricing structure and flexible licensing is designed to minimize risk and maximize the value we bring to a hosting provider.

• SaaS delivery and billing model closely parallels hosting providers' offerings, resulting in zero-risk financial exposure due to early service terminations.
• No hardware to procure, provision and maintain - allowing for near real-time provisioning (and de-provisioning) of dedicated, high-value load balancing services; leading to unparalleled ROI.
• "Virtual Appliance" model reduces or eliminates costs associated with power consumption, cooling, rack-space and other environmental dependencies of hardware appliances.
• Easy to use Web-based UI and support for SSH allows for fast configurations and simplified "device" management, significantly increasing "managed services" ROI and reducing end-user support requirements.
• Pricing structure, combined with SaaS delivery model provides for aggressive marketing and business development opportunities in high-value services while achieving a high degree of differentiation.

Benefits of Virtual Load Balancing

KEMP Technologies has announced the launch of its Virtual LoadMaster (VLM). This new virtual-appliance application delivery controller (ADC) will be sold under a Service Provider Licensing Agreement (SPLA) with extremely low monthly license costs and with no startup or setup fees. The SPLA pricing model enables managed hosting providers (MHPs) and managed service providers (MSPs) to offer a dedicated server load balancer with the same functionality as KEMP's hardware appliances at a price point affordable to a much broader range of business customers while significantly reducing operating costs.

The "Virtual Appliance" model reduces or eliminates costs associated with power consumption, cooling, rack-space and other environmental dependencies of hardware appliances. All of these factors allow you to provide your users with additional value for minimal additional cost.

LoadMaster's easy to use Web-based UI and support for SSH allows for fast configurations and simplified "device" management, significantly increasing "managed services" ROI and reducing end-user support requirements.

Our pricing structure, combined with the SaaS delivery model provides for aggressive marketing and business development opportunities in high-value services while achieving a high degree of differentiation.

Bringing Affordable Server Load Balancing to Software & Application Developers

Existing middleware-based load balancing services do not adequately address several key requirements such as server-side transparency, centralized load balancing, support for stateless replication and load/health monitoring. This forces continuous re-development of application-specific load balancing services.
Not only does re-development increase deployment costs of distributed applications, it also increases the potential of producing non-optimal load balancing implementations, since proven load balancing service optimizations cannot be reused directly.

During the past five years, application delivery controllers and server load balancers have emerged as one of the most important technologies in solving the problem of performance and accessibility for distributed application systems.
In its most basic form, a load balancer provides the ability to direct application users to the best performing, accessible server. Should one of the servers (or applications on that server) become inaccessible, the load balancer will take that server off-line, while automatically re-routing users to other functioning servers. In addition, using various adaptive load balancing algorithms, an intelligent load balancer can distribute users to servers that offer the best possible performance by dynamically interrogating key server elements such as number of concurrent connections and CPU/memory utilization.
To further enhance the user experience, advanced load balancers can provide SSL acceleration by offloading encryption/decryption processes from the application servers, thereby dramatically increasing their performance, while decreasing the time and costs associated with certificate management.


In general terms, use of external application delivery controllers and intelligent load balancers can provide the following benefits:


For years, large corporations and institutions with resource-intensive, distributed application initiatives were able to take advantage of appliance-based server load balancing technology to significantly improve performance, availability and scalability of their applications. However, at an average cost of over $40,000 per each redundant configuration, deploying intelligent load balancing required fairly deep pockets. For small-to-medium sized companies, the high cost of acquisition has placed this technology out of reach.

However, that has all changed with KEMP Technologies' introduction of the LoadMaster. Integrating powerful, stable, full-featured server load balancing with the latest advancements in layer-7 content switching and SSL acceleration technologies, KEMP has created an ideal server load balancing appliance for small-to-medium companies that desire to dramatically reduce costs and development time of their resource-intensive applications. At a starting price of only 1.890 €, including 1st year support, the LoadMaster family of products brings affordable, advanced application infrastructure technology to the applications development process.