Published: 06 Oct 2011
By: Scott Forsyth

Application Request Routing (ARR) does not have high availability built in, so it's up to us to implement a solution to ensure that ARR doesn't become a single point of failure. Options include hardware load balancers, other software load balancers, or two Microsoft options-namely NLB and Clustering Services.

Today's video discusses these options and then takes us on a walkthrough of setting up Microsoft's Network Load Balancing (NLB) solution. There are certain considerations to ensure that NLB works with your network and that it properly health tests to ensure that a failed node is automatically taken out of rotation.

For your reference, the following four links were mentioned in the video:

Catalyst Switches for Microsoft Network Load Balancing Configuration Example
High CPU on Cisco 4500 with MSFT NLB multicast cluster
Monitoring Application Level Health
Configuring IIS 7.0 World Wide Web Publishing Service in a Microsoft Windows Server 2008 failover cluster

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About Scott Forsyth

Senior Systems Engineer at ORCS Web, Inc (www.orcsweb.com) and co-founder of Vaasnet (www.vaasnet.com). Microsoft MVP for IIS. ASPInsider. Strengths are IIS, ASP.NET, DNS, Windows Server, and Hyper-V.

This author has published 50 articles on DotNetSlackers. View other articles or the complete profile here.

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