You can customize Logical for System Routing command according to requirements.
Compute Length of Physical Route Component (LSR_GetLengthOfPhyRouteComponent) Compute Length of Route Component (LSR_GetLengthOfRouteComponent) Compute Pathway Attributes (LSRRouting_ComputePathwAttrib) Validate Multi Routable Objects (LSRRouting_ValidateMultiRoutableObjects) Validate Whole Route (LSRRouting_ValidateRoute) Validate Whole Physical Route (LSRRouting_ValidatePhysicalRoute) Validate Route Component (LSR_ValidateRouteComponent) Validate Physical Route Component (LSR_ValidatePhyRouteComponent) Validate Physical Segment (LSRRouting_ValidateSegment) Validate Pathway Segment (LSRRouting_ValidatePathwaySegment)