Request access to a testbed. The request includes the various resources needed (loosely), the identity of the requester, access credentials andscheduling information. A successful response includes enough information for the federation system to access the testbed and actually request resources. Release an allocation of access to a testbed. This informs the testbed that it is no longer necessary to allow the access mthods negotiated by a RequestAccess cal. A request to create a federated experiment from the included description. Credentials and access information is also provided. On success a logical description of the experiment is returned as well as the information about federated testbeds needed to access local services. A request for the virtual topology of the experiment. Requesters with different access rights may receive different information. A request for the visualization of the experiment. This is really a legacy interface for visual tools that cannot generate their own visualization. Requesters with different access rights may receive different information. A one-stop request for meta-data on the experiment. Includes all the info from a Vtopo and a Vis request. Stop this experiment and deallocate its resources.