F37-BP: Yes
Rationale
Secure DTN explicitly selects AQM on its IPv4 transport. Router-local queue pressure causes local dropping at the affected egress. This supplies a localized congestion-control action for the TCPCL transport path.
Assessment method
Primary RFC review and explicit composition selection
Source context
IETF TCPCLv4, AQM and DiffServ specifications
Outstanding qualification
Optional underlay witness, not a claim that BP or CGR diagnoses all congested contacts. No bundle-storage control, disconnected-contact feedback, payload inspection or global delivery guarantee follows. Existing implementation qualifications remain.
Public sources
Editorial evidence references
The following identifiers refer to research records not included in this public package; they are not public links.
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