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QUIC is a step backwards here; it has no multipath support: https://lwn.net/Articles/964377/ https://lwn.net/Articles/964377/ Multipath: There are several area

QUIC is a step backwards here; it has no multipath support: https://lwn.net/Articles/964377/ https://lwn.net/Articles/964377/ Multipath: There are several areas where TCP still has an advantage over QUIC. One of those is multipath support. Multipath TCP connections can send data on different network paths simultaneously — for example, sending via both WiFi and cellular data — to provide better throughput than either path permits individually. Server connection migration is explicitly forbidden by QUIC: https://github.com/quicwg/base-drafts/pull/2031 https://github.com/quicwg/base-drafts/pull/2031

ajb 2y ago
The draft multipath extension is here: https://datatracker.ietf.org/doc/draft-ietf-quic-multipath/ https://datatracker.ietf.org/doc/draft-ietf-quic-multipath/ It's on the standards track, rather than experimental, so likely to be supported once finished. There seem to be some implementations, including Apple: https://github.com/quicwg/multipath/wiki/QUIC-Implementations-with-multipath-support https://github.com/quicwg/multipath/wiki/QUIC-Implementation...