The conventional wisdom certainly is that ECN should be left off simple
1-RTT request-response protocols,
Just to avoid any misunderstandings:
- Babel does not use ECN; the marking is due to Dave's local hack;
- Babel is an asynchronous protocol that runs (mostly) over multicast,
not a request-response protocol, so there's no obvious way to carry
an echo bit in it;
- Babel is designed to work well over extremely lossy links (with the
standard implementation working reasonably well at 85% pre-ARQ loss).
[Shouldn't we be dropping people from the CC?]
-- Juliusz
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