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F28-CG: No

Rationale

SABR computes candidate routes from contact plans and selects neighboring nodes for forwarding. This gives the routing agent trajectory knowledge and schedule-aware choices, but the selected BP application interface does not expose those routes for sender selection or encode an enforced endpoint-selected intermediary constraint.

Assessment method

Primary specification and pinned code review; no runtime experiment

Source context

BP endpoint service, SABR route computation and LTP engine service

Outstanding qualification

F32 remains Yes for route planning. Supplying a contact plan administratively is distinct from an endpoint selecting a path for its communication. The selected composition adds no route-choice API or source-route extension binding later forwarders to that choice. Local routing policy and rerouting after contact failure remain possible; no general claim that CGR cannot support an additional endpoint-control interface is made.

Public sources

• https://ccsds.org/Pubs/734x3b1.pdf
• https://www.rfc-editor.org/rfc/rfc9171.html#section-3.3

Editorial evidence references

The following identifiers refer to research records not included in this public package; they are not public links.

• round516.html
• round516-sources.json