$ 0 0 Oracle HOWTO Understanding WebLogic Server Clustering https://docs.oracle.com/en/middleware/fusion-middleware/weblogic-server/12.2.1.4/clust/overview.html#GUID-7082EB65-5A7B-4211-B90D-B0482DCABCA4 Communications in a Cluster https://docs.oracle.com/en/middleware/fusion-middleware/weblogic-server/12.2.1.4/clust/features.html#GUID-77742802-F67B-4C6D-B58E-BC5E352CA558 See also https://danielveselka.blogspot.com/2009/09/using-weblogic-clusters.html