itions to an admitted, and finally to an active, state due to BS action (this is possible under both static and dynamic service models). Transition to the admitted state involves the invocation of admission control in the BS and (soft) resource reservation, and transition to the active state involves actual resource assignment for the service flow. The service flow can directly transit from provisioned state to active state without going through admitted state. 4. A service flow can also transition in the reverse from an active to an admitted to a provisioned state. 5. A dynamically created service flow may also be modified or deleted. As mentioned earlier, management information bases are collections of various network objects that are operated with the use of a Simple Network Management Protocol or SNMP [8,13]. The exact structure of the objects included in the management information base will depend on the configu- ration of the particular SNMP. However, additional extensions can allow for the addition of new objects outside the initial structure. Both the initial management information base and its extensions can be related to specific functions within a network. Some MIBs may be related to the definition of the domain name system, while other extensions may be associated with network objects like the fiber distributed data interface. While the initial management information base is usually defined as part of the SNMP, the extensions are generally set up as part of the basic management information base. The Subscriber Station Management Primitives are a set of primitives to manage the status of mobile station. A management entity in the NCMS can change the status of mobile terminal. Those primitives are also used to notify the NCMS of information or events which are related to the status of the mobile terminal. The NCMS is a layer-independent entity that may be viewed as a management entity or control entity. 3.1.6 Service Access Point A Service Access Point is defined as a reference point in a protocol stack