Multipath TCP for Linux (2022)

Re:Multipath TCP for Linux (2022) by infogulch on Friday April 19, 2024 @04:39PM (#40091664)

I found [1] which describes the architectural difference between MPTCP and QUIC, and also introduces the authors' proposed MPQUIC protocol:

> QUIC multiplexes application streams on a single UDP ﬂow, whereas MPTCP splits a single stream on multiple TCP subﬂows. MPQUIC combines both features by multiplex- ing application streams on multiple UDP subﬂows.

[1]: "Multipath QUIC: A Deployable Multipath Transport Protocol" https://www.researchgate.net/publication/327122884_Multipath...

Now I'm curious about how these protocols compare in production operation. Anybody have experience with both?

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Re:Multipath TCP for Linux (2022) by matttbe on Saturday April 20, 2024 @04:40AM (#40095813)

Note that MPQUIC is still being discussed at the IETF. At the last IETF meeting, more changes have been discussed. Unfortunately, that slows down its adoption. https://lwn.net/Articles/964377/

But both tries to achieve the same goal. Technically, you can have a very similar behaviour. MPTCP is implemented in the Linux kernel, while QUIC is on the userspace side.

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