Space Link Extension - Service Management - CCSDS

DRAFT RECOMMENDED STANDARD FOR SPACE LINK EXTENSION SERVICE MANAGEMENT
stored at CM. CM re-evaluates all of the scenarios of the indicated existing Service Packages
that reference the superseded events profile to ensure that it (CM) can continue to provide the
agreed-upon support. If it can continue to provide the services, CM returns the updated
Service Package information, indicating the new, updated events. If it cannot, CM returns the
appropriate error information, but does not update the Service Package to utilize the updated
events profile; i.e., the Service Package is retained as is prior to the ANSLEP-I.
2.2.3.9 CONFIRM_TENTATIVE_SERVICE_PACKAGE
CM invokes a CONFIRM_TENTATIVE_SERVICE_PACKAGE operation to offer a contact
at a time specified within the invocation, as determined by rule-based scheduling performed
by CM. All details of such rule-based scheduling are bilaterally agreed between UM and CM
and are beyond the scope of the SLE Service Management Recommended Standard. A
ConfirmTentativeServicePackageInvocation (CTSP-I) message contains a
description of the tentative Service Package, which has the following restrictions:
a) the Service Package will contain precisely one service scenario;
b) retrieval transfer services are not available via rule-based scheduling;
c) space link event profiles are not available via rule-based scheduling;
d) specification of transfer services cannot be deferred in rule-based schedules.
UM confirms the service package by sending a ConfirmTentativeService-
PackageSuccessfulReturn (CTSP-SR). If UM does not want to use the tentative
service package, it declines by sending a ConfirmTentativeServicePackage-
FailedReturn (CTSP-FR).
2.2.3.10 SERVICE_PACKAGE_CANCELLED
CM invokes a SERVICE_PACKAGE_CANCELLED operation when it is unable to continue
with a commitment to provide the agreed-upon services for an existing Service Package. This
may be the result either of internal CM conditions or of a Service Package that still has items,
such as transfer services or event sequences deferred beyond the mutually agreed minimum
service definition lead time (prior to the start time of the Service Package).
This operation results in a notification to UM of the cancelled Service Package.
2.2.3.11 SERVICE_PACKAGE_MODIFIED
CM invokes a SERVICE_PACKAGE_MODIFIED operation only when it can continue to
support the Service Package if modifications are applied. As condition of performing this
operation, CM ensures that it is within all of the constraints of the CSP-I of the Service
Package and any subsequent RSP-I, or SAS-I, applied to the Service Package. In other
CCSDS 910.11-R-2 Page 2-10 March 2008