edocs Home > Oracle WebLogic Server Documentation > Administration Console Online Help > Clusters: Create a Cluster
Clusters: Create a Cluster
This page allows you to set properties for a new cluster.
Clusters use messaging for sharing session, load balancing and failover, JMS, and other information between cluster members. Clusters can use either Unicast or Multicast messaging. Multicast is a simple broadcast technology that jenables multiple applications to subscribe to a given IP address and port number and listen for messages, but requires both network and hardware configuration and support. Unicast provides the same type of communication within a cluster, but does not have these requirements.
Multicast is the default messaging metho to support backward compatibility. However, it is recommended that you use Unicast when creating new clusters.
![]()