Space Link Extension - Service Management - CCSDS

DRAFT RECOMMENDED STANDARD FOR SPACE LINK EXTENSION SERVICE MANAGEMENT
3PI-0010
3PI-0011
If an AcknowledgedReturn, a SuccessfulReturn or a FailedReturn* fails any service
management validation requirement specified for its return type, the return shall be deemed to be service
management-invalid. The Invoker is not required to further interpret or act upon the service managementinvalid
return.
If a SuccessfulReturn or FailedReturn* is not received for the operation by the time the
associated disposition timer expires, the Invoker shall contact the Performer to determine the disposition of
the operation.
3.4.2.6.2 Performer Requirements for Three-Phase Operation Procedures
Table 3-33: Performer Requirements for the Three-Phase Operation Procedures
3PP-0101
3PP-0102
3PP-0103
3PP-0104
3PP-0105
The Performer shall receive and validate the operation Invocation in conformance with the Receiver
Requirements for the SLE-SM Document Exchange Protocol as defined in 3.3.3.2.
If the Invocation passes message set validation as specified in 3PP-0101, the Performer shall
generate and send an AcknowledgedReturn message to the Invoker’s message port in accordance
with the Sender Requirements for the SLE-SM Document Exchange Protocol as defined in 3.3.3.2.
a) If the urgent parameter of the invocation is ‘true’, the Performer shall set the
expectedDispositionTime parameter of the AcknowledgedReturn message to no later
than the messageTimestamp of the Invocation plus the value of the urgent timeout
parameter of the referenced Service Agreement. Otherwise, the Performer shall set the
expectedDispositionTime parameter to no later than the messageTimestamp of the
Invocation plus the value of the routine timeout parameter of the referenced Service Agreement.
b) The Performer shall transmit the AcknowledgedReturn to the Invoker such that the return is
received by the Invoker at or before the messageTimestamp of the operation Invocation
plus the value of the routine timeout or urgent timeout parameter of the referenced Service
Agreement, as appropriate (see 3PI-0002).
c) The Performer shall transmit the AcknowledgedReturn prior to transmitting the
SuccessfulReturn or FailedReturn* message (see 3PP-0103).
d) The Performer shall start a local disposition timer for the operation and set it to timeout with
sufficient lead time before the expectedDispositionTime to allow the final return for the
operation to be received by the Invoker prior to the expectedDispositionTime.
NOTE – See 3.4.2.2, Note 1, for considerations in setting the disposition timer.
The Performer shall perform operation-specific service management validation on the Invocation.
a) If the Invocation passes service management validation, the Performer shall perform the
operation and generate and transmit a SuccessfulReturn to the Invoker’s message set port in
accordance with the Sender Requirements for the SLE-SM Document Exchange Protocol as defined
in 3.3.3.1. The parameters of the SuccessfulReturn are operation-specific.
b) If the invocation fails service management validation, the Performer shall cease interpreting and
acting upon the Invocation, generate a FailedReturn*, and transmit the FailedReturn*
to the Invoker’s message set port in accordance with the Sender Requirements for the SLE-SM
Document Exchange Protocol.
The Performer shall transmit the SuccessfulReturn or FailedReturn to the Invoker before the
expiration of the associated disposition timer. If the invoked operation cannot be successfully completed
or failed for other reasons by the expiration of that timer, the Performer shall terminate the operation and
return a FailedReturn* with diagnostic value ‘operation timeout’.
The Performer shall validate exception responses received from the Invoker on the exception response
port in accordance with the Sender Requirements for the SLE-SM Document Exchange Protocol as
defined in 3.3.3.1.
CCSDS 910.11-R-2 Page 3-56 March 2008