Multicast Vs. Unicast with WebLogic Clustering
By Sabha on Feb 09, 2012
WebLogic Clusters manage membership via messaging within its members. The members join/leave the cluster as well as update other members via messages to the entire cluster. There are two ways for cluster messaging in WLS - Multicast or Unicast. In this post, I hope to clarify the inner workings of WLS clustering membership around Unicast vs Multicast messaging while providing some guidence on the option to be used based on the requirements and constraints.