Ignored the unrecognised element and carried on: completed a handshake carrying a reserved transport parameter.
The client did what the clause requires.
What was measured
- Client
- ngtcp2 — ngtcp2 + nghttp3 (direct), 3c23148
- Test
- Reserved transport parameter (31·N+27) —
q-reserved-transport-param - Clause
- RFC 9000 §18.1 (MUST)
- Class
- extensibility — Ignored something unknown and carried on.
- Required behaviour
- Ignore the unknown parameter and complete the handshake normally.
- Measured
- 2026-09-18
Reproduce it
The suite is the judge, so the reproduction is to point the same client at the same test and let the server report what it saw.
SESSION=$(curl -sX POST https://conformance.pqcrypta.com/session | jq -r .id)
# then drive ngtcp2 at the test URL and read the verdict:
curl -s https://conformance.pqcrypta.com/report/$SESSION.json | jq '.results["q-reserved-transport-param"]'What this suite is · The full grid · All clients · All tests · Findings