On Thu, 12 Jan 2023, Dmitry Karpov via curl-library wrote:
Daniel, a question about the "Happy eyeballs everything!" section in the blog. Is the "happy eyeballs" interval between H3 and H2 going to be controlled by the same option as the interval between IPv6 and IPv4 or there will be a special option for that?
I imagine that we start out with a fixed mostly arbitrary delay that we think works and then if someone insists and gives a good reason we make it an option.
I am asking because QUIC in H3 is supposed to provide a very quick connection start, so the HE interval between H3 and H2 can be made shorter than between IPv6 and IPv4, thus allowing faster switch to H2/H1 if UDP is blocked.
Sure, but we also have to accept that you might try a h3 request to an old server on the other side of the globe via a slow network.
A 50-100 ms delay maybe? -- / daniel.haxx.se | Commercial curl support up to 24x7 is available! | Private help, bug fixes, support, ports, new features | https://curl.se/support.html -- Unsubscribe: https://lists.haxx.se/listinfo/curl-library Etiquette: https://curl.se/mail/etiquette.html
