After communication initialization is complete, Oracle VM Server for SPARC-defined XML messages are sent next. The two general types of XML messages are:
Request and response messages, which use the <LDM_interface> tag. This type of XML message is used for communicating commands and getting results back from the Logical Domains Manager, analogous to executing commands using the command-line interface (CLI). This tag is also used for event registration and unregistration.
Event messages, which use the <LDM_event> tag. This type of XML message is used to asynchronously report events posted by the Logical Domains Manager.