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F38-BP: Yes

Rationale

Secure DTN explicitly selects DiffServ enforcement in its existing IPv4 transport. Independent domains classify transport aggregates and apply local policing, shaping and forwarding treatment under compatible agreements.

Assessment method

Primary RFC review and explicit composition selection

Source context

IETF TCPCLv4, AQM and DiffServ specifications

Outstanding qualification

Applies to TCP transport aggregates, not individually visible encrypted bundles. This requires enforcement, not only marking. It does not establish application-requested reservation or BPv7/SABR priority propagation.

Public sources

• https://www.rfc-editor.org/rfc/rfc2475.html#section-2.3
• https://www.rfc-editor.org/rfc/rfc9174.html

Editorial evidence references

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

• round688.html