What is new for NLB in Windows Server 2008R2?

  In Windows Server 2008 R2 several improvements have been made to the Network Load Balancing (NLB) technology.    Extended Affinity In the past, affinity was only honored for open connections when a failover occurs.  In 2008 R2 we added what is known as “Extended Client Affinity”.  When Extended Affinity is enabled and node membership… Read more

Network Load Balancing in R2: Using ETW Tracing

Hi,   We are going to talk about a new feature in Windows Server 2008 R2 for Failover Clustering, ETW tracing.  With this added functionality, we have provided a mechanism of tracing why NLB has decided to drop or accept a given network packet.   This blog provides the following information on the new ETW… Read more

How to create the cluster.log in Windows Server 2008 Failover Clustering

Windows Server Failover Clustering logs information about cluster activities including normal operations like updates between nodes as well as errors and warnings related to problems that occurred on the cluster in a text file called cluster.log.  The information in the cluster.log is very valuable when trying to troubleshoot just about any problem encountered with a… Read more