The first half of the 6.6 merge window [LWN.net]

The first half of the 6.6 merge window

Posted Sep 20, 2023 11:40 UTC (Wed) by ghane (guest, #1805)
In reply to: The first half of the 6.6 merge window by Cyberax
Parent article: The first half of the 6.6 merge window

Is MP-TCP in actual use on the public internet? I am not aware of any deployments except test beds.

Information welcome.

--
Sanjeev

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The first half of the 6.6 merge window

Posted Sep 20, 2023 20:48 UTC (Wed) by Cyberax (✭ supporter ✭, #52523) [Link] (2 responses)

Apple uses it for Siri: https://www.tessares.net/apples-mptcp-story-so-far/

The first half of the 6.6 merge window

Posted Sep 20, 2023 23:36 UTC (Wed) by Fowl (subscriber, #65667) [Link] (1 responses)

I’d be surprised if they hadn’t moved to or at least planned to add QUIC/HTTP3.

Wonder how long until we see that in the kernel. SMB3 has a QUIC transport now, for example. Perhaps even the first(?) io_uring exclusive user space API - at least on the server - the browser people like to keep control. /musings

The first half of the 6.6 merge window

Posted Sep 23, 2023 21:06 UTC (Sat) by Cyberax (✭ supporter ✭, #52523) [Link]

It still uses it.

Siri has to work with all kinds of crappy hotel networks, so QUIC is not an option. It relies on UDP which is frequently blocked. MP-TCP is basically just TCP, so it works everywhere.

The first half of the 6.6 merge window

Posted Sep 23, 2023 8:28 UTC (Sat) by mupuf (subscriber, #86890) [Link]

We used it to broadcast cycling competitions over the 4G network in Finland. Each motorcycle-mounted camera had four 4G modems with SIM cards from different providers.

Worked wonderfully well! It was good-enough for live national TV too :)