On Sat, Dec 27, 2025 at 12:50 AM Pedro Prado via NANOG < nanog@lists.nanog.org> wrote:
Yup, sure it’s UDP; I was just curious wether those providers were also trying to find a way to affect QUIC…
Quic, being modern, has many of these ideas built-in. For example, it has a spin bit and active pmtu discovery along with general lower mss built in.
Sent from my iPhone
On 27 Dec 2025, at 06:44, Marco Moock via NANOG <nanog@lists.nanog.org> wrote:
On 26.12.2025 22:47 Pedro Prado via NANOG <nanog@lists.nanog.org> wrote:
Is QUIC also affected in any way?
It uses UDP, so it is affected by NAT, but not by MSS-clamping. If PMTUD fails and people use MSS-Clamping, QUIC will fail.
-- kind regards Marco
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