The enhancements support for WebLogic Server messages is provided by T3. These enhancements include object replacement, which work in WebLogic Server clusters’ context and HTTP. Java Object Serialization, RMI predation is done by T3. T3 is a superset of java Object. Serialization and RMI can be done over T3. Between WebLogic Servers and between programmatic clients and a WebLogic Server cluster, T3 is mandated. To communicate between processes and
WebLogic Server, the protocols HTTP, and IIOP can be used and optional. The HTTP is used to communicate between a browser and WebLogic Server. The IIOP is used to communicate between an Object Request Broker and WebLogic Server.