QUIC should interact with cake in the same way as with fq_codel. Since QUIC
aims to minimise the standing queue by itself, it should usually be seen as
a "sparse" flow which cake will automatically prioritise and avoid dropping
packets from. That, of course, is what you want in a streaming protocol
Cake makes use of Linux' "packet dissecting" infrastructure. If the latter
knows about the tunnelling protocol, Cake should naturally see the IP and
port numbers of the inner payload rather than the outer tunnel.
I don't know, however, precisely what tunnels are supported. At minimum,
don't ever
