This bean represents a machine on which servers may be booted. A server is bound to a machine by calling to ServerMBean.setMachine(). Although it is typical that one MachineMBean refers to one physical machine and vice versa, it is possible to have a multihomed machine represented by multiple MachineMBeans. The only restriction is that each MachineMBean be configured with non-overlapping addresses. A configuration may contain one or more of MachineMBeans which may be looked up by their logical names.