Welcome! Log In Create A New Profile

Advanced

Re: Running nginx-quic in a real environment

Sergey Kandaurov
September 27, 2022 08:08AM
> On 27 Sep 2022, at 14:11, João Sousa Andrade <joao.andrade@protocol.ai> wrote:
>
> Thank you for the clarification Sergey.
>
> We have been running http3 in production for the past couple of weeks. There's something we have noticed which I'm not entirely sure as to what is causing it.
>
> We have been getting lots of errors of the form: "[error] 34#34: *338736 quic no available client ids for new path while handling decrypted packet, client: $IP, server: 0.0.0.0:443". I tried looking through the code to little avail. I'm wondering what's causing these errors. Is it something which could be tweaked through configuration?

This happens when QUIC connection continues over a new network path,
known as QUIC connection migration, which should by done by switching
to a new connection ID, but the client didn't previously supply enough
Connection ID to chose from. Normally both peers maintain a set of
unused Connection IDs, which may be needed not only for migration,
but also due to NAT rebinding. Assuming that peers that initiate
connection migration maintain enough connection IDs, a likely reason
of the network path change failure as seen in the above error can be
due to NAT rebinding with the client implementation that doesn't a notion
of connection migration so it didn't sent NEW_CONNECTION_ID frames.
In the case of NAT rebinding the server should send probing frames
over a new network path using next available client Connection ID,
but there were no any, as seen in the above error.
Hope that helps.

--
Sergey Kandaurov

_______________________________________________
nginx mailing list -- nginx@nginx.org
To unsubscribe send an email to nginx-leave@nginx.org
Subject Author Posted

Running nginx-quic in a real environment

João Sousa Andrade via nginx September 08, 2022 06:30AM

Re: Running nginx-quic in a real environment

Sergey Kandaurov September 15, 2022 08:06AM

Re: Running nginx-quic in a real environment

João Sousa Andrade via nginx September 27, 2022 06:14AM

Re: Running nginx-quic in a real environment

Sergey Kandaurov September 27, 2022 08:08AM

Re: Running nginx-quic in a real environment

Maxim Dounin September 27, 2022 05:06PM

Re: Running nginx-quic in a real environment

Sergey Kandaurov September 29, 2022 09:56AM

Re: Running nginx-quic in a real environment

Maxim Dounin September 29, 2022 03:36PM



Sorry, only registered users may post in this forum.

Click here to login

Online Users

Guests: 92
Record Number of Users: 6 on February 13, 2018
Record Number of Guests: 421 on December 02, 2018
Powered by nginx      Powered by FreeBSD      PHP Powered      Powered by MariaDB      ipv6 ready