Article ID: 932018 - View products that this article applies to.
This article describes how SoftGrid Networking works together with Microsoft Windows Server 2003 Network Load Balancing.
Note For more information about streaming protocols and about the corresponding ports that are used by SoftGrid, click the following article number to view the article in the Microsoft Knowledge Base:
932017Do this before you set up a load balancer.
(http://support.microsoft.com/kb/932017/ )Introduction to SoftGrid networking
Network Load Balancing (NLB) is built into all versions of Windows Server 2003. Unlike hardware appliance-based solutions, NLB is a kernel-level software driver that runs on each Windows host computer that participates in the SoftGrid Virtual Application Server NLB cluster.
Each host in the cluster receives all incoming virtual IP traffic on a cluster network adapter on each computer. One computer is selected to respond by using an algorithm that is run on each host.
The primary benefit of NLB is significant cost savings over hardware load balancers. Hardware load balancers cost thousands of dollars each. However, NLB has some limitations, as follows:
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