Space Link Extension - Service Management - CCSDS

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DRAFT RECOMMENDED STANDARD FOR SPACE LINK EXTENSION SERVICE MANAGEMENT Table 3-30: State Table for Three-Phase Operation—Invoker View State Initial Invoked Acknowledged Event op-I sent -> Invoked - - op-AR - -> Acknowledged - op-SR - - -> Final op-FR - - FAIL -> Final Exception response - FAIL -> Final Two-phase Timeout - Contact performer -> - Expected Disposition Timeout Final - - Contact performer -> Final Table 3-31: State Table for Three-Phase Operation—Performer View State Initial Validating Performing Event op-I received op-AR -> Validating - Validation complete: valid -> Performing Validation complete: not op-FR -> Final valid Operation performed - op-SR -> Final Operation not performed - op-FR -> Final 3.4.2.5 Activity Diagram Figure 3-24 is the activity diagram for the three-phase operation procedure pattern. CCSDS 910.11-R-2 Page 3-53 March 2008
CCSDS 910.11-R-2 Page 3-54 March 2008 ThreePhaseOperationProcedurePatternActivity {invoker, performer, Invocation, AcknowledgedReturn, SuccessfulReturn, FailedReturn*, routineThreePhaseTimeout, urgentThreePhaseTimeout} invoker performer routineThreePhaseTimeout urgentThreePhaseTimeout Create Invocation Invocation SLE-SM message SLE-SM message routineThree PhaseTimeout urgentThree PhaseTimeout Unrecognized MessageSet Response Contact performer by other means to determine operation status start disposition timer Document Exchange Protocol [disposition timer expired without having received response or return] Invalid Message Response performer may use the diagnostic information supplied in the exception Responses to troubleshoot inform invoker by other means of return contents generate expected DispositionTime Perform Service Management Validation terminate invoker processing of operation [correlated with known Invocation] [uncorrelated with known Invocation] [valid AcknowledgedReturn] [correlated with known return] [uncorrelated with known return] Document Exchange Protocol Unrecognized MessageSet Response Generate operation Acknowledged Return Acknowledged Return invoker may use the diagnostic information supplied in the exception responses to create an alternative operation invocation or troubleshoot [invalid return] Perform Service Management Validation SLE-SM message [invalid return] SLE-SM message [operation unable to complete by expiration of disposition timer] start disposition timer Perform Service Management Validation [(Invocation not valid OR resources not available) AND disposition timer not expired] invoker updates data system to reflect successful operation [valid SuccessfulReturn] [valid FailedReturn*] invoker may use the diagnostic Information supplied in the failure return to create an alternative operation invocation Document Exchange Protocol Unrecognized MessageSet Response Failed Return* Generate operation FailedReturn* [Invocation valid AND resources available AND disposition timer not expired] Success fulReturn Generate operation SuccessfulReturn [disposition timer not expired] SLE-SM message SLE-SM message Perform Operation FailedReturn* designates either a FailedReturn or FailedReturnWithDenial, as appropriate to the specific operation. Figure 3-24: Three-Phase Operation Procedure Pattern Activity Diagram DRAFT RECOMMENDED STANDARD FOR SPACE LINK EXTENSION SERVICE MANAGEMENT
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Space Link Extension - Service Management - CCSDS

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