Sdde-721 !full! Jun 2026

+-------------------+ +-------------------+ | Application A | | Application B | +--------+----------+ +----------+--------+ | | +-----v-----+ +-----v-----+ | SDDE‑721 | Secure Channel | SDDE‑721 | | Stack | <----------------> | Stack | +-----+-----+ (MFL over X) +-----+-----+ | | +-----v-----+ +-----v-----+ | Transport| (UDP/QUIC/TCP) | Transport| +-----------+ +-----------+