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mptcp

Multipath TCP

Edited 4 days ago
"Valkey 9.0.0 released" article from @lwn mentions:

> Notable features of this release include (native) Multipath TCP (MPTCP) support

🎉

https://lwn.net/Articles/1042851/

#Valkey #MPTCP #Linux
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mptcp

Multipath TCP

New blog post 📰! What happened the last 9 months around MPTCP 🔀, and which new features will be available in the future LTS v6.18 Linux kernel version: https://blog.mptcp.dev/2025/10/16/v6.18-with-many-features.html

- Better load-balancer deployment support on the client side 🔄
- New 'laminar' endpoints for better controlling addresses signalled by a server 📢
- mptcpd: security review and improvements 🔐
- More apps natively supporting MPTCP 🧑‍💻
- Misc.: PM, counters, CI, perf, socket options, adaptive ADD_ADDR timeout and future work. 📈

MPTCP or Multipath TCP is an extension to the standard TCP to allow devices to make use of multiple interfaces at once. See https://mptcp.dev for more details.

Thanks to @nlnet for funding part of this work 🎉

#MPTCP #MultipathTCP #Linux
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mptcp

Multipath TCP

The MPTCP dev team will be represented by @matttbe at the IETF 123 in Madrid this week. Don't hesitate to join the Hackathon 👩‍💻 and participate to the two suggested extensions at the tcpm session! 📰

#MPTCP #IETF
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mptcp

Multipath TCP

A 🆕 TCP-in-UDP tool is available, using eBPF 🐝 to translate TCP packets into UDP 🚇 to avoid middleboxes interfering with some TCP extensions like MPTCP 🔀.

Blog post: https://blog.mptcp.dev/2025/07/14/TCP-in-UDP.html

Code and instructions: https://github.com/multipath-tcp/tcp-in-udp

#eBPF #BPF #TCP #MPTCP
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mptcp

Multipath TCP

The last Traefik versions 2.11.26 and 3.4.2 have MPTCP support enabled by default 🎉

#Traefik is the Cloud Native Application Proxy: https://traefik.io
#MPTCP is short for Multipath TCP, an extension to TCP to make use of multiple interfaces at once to send and receive TCP packets over a single MPTCP connection: https://mptcp.dev
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mptcp

Multipath TCP

The next version of Valkey (8.2) will natively support MPTCP 🔀, thanks to Zhenwei 🎉 and Valkey maintainers:

- https://www.mptcp.dev/apps.html
- https://github.com/valkey-io/valkey/pulls?q=MPTCP

#valkey #MPTCP #Redis #Linux
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mptcp

Multipath TCP

A new page has just been added to the MPTCP website to help deploy it behind a stateless L4 load-balancer 🔀
It would be great if CDNs can support MPTCP 😇

https://www.mptcp.dev/load-balancer.html

#MPTCP #Linux #loadbalancer
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mptcp

Multipath TCP

MPTCP changes for Linux 6.15 have just been added to our ChangeLog section:

v6.15: Single subflow optimisation + prepare PM extension

- Optimise MPTCP performance in single subflow mode by ~29%.
- Expose TCP ULP diagnostic info (MPTCP subflows) to non-admin users.
- PM: a lot of cleanups and preparation work (e.g. new pm_kernel.c file) to allow future extensions
- PM: net.mptcp.path_manager (and net.mptcp.available_path_managers) Sysctl knob deprecates net.mptcp.pm_type
- Misc small optimisations and code coverage

https://github.com/multipath-tcp/mptcp_net-next/wiki#changelog

#MPTCP #Linux #kernel
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mptcp

Multipath TCP

The new networking features for the future6.15 have been accepted in Linus' tree. At the top, we can find:

- Optimize MPTCP performance in single subflow mode by 29%.

🎉

Thanks Paolo for having worked on that!
https://lore.kernel.org/20250326163652.2730264-1-kuba@kernel.org
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mptcp

Multipath TCP

There will be a presentation and discussions about #MPTCP at #Netdev 0x19 this afternoon! See you there!
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mptcp

Multipath TCP

OpenWrt 24.10.0 is available: "Activate kernel support for Multipath TCP on devices with big flash sizes." 🎉

All ready to run a transparent proxy to let all clients connected to the router benefit from multiple paths.

https://openwrt.org/releases/24.10/notes-24.10.0

#OpenWrt #MPTCP
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mptcp

Multipath TCP

Live from @godevroom 🎉
#MPTCP will be enabled by default on Linux on the server side in the next version!
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mptcp

Multipath TCP

There will be an official MPTCP community meetup at FOSDEM this year!

No need to have improvised meetings outside in a cold weather anymore, we can meet on Saturday from 17.30 in H.3242. Feel free to come!

https://fosdem.org/2025/schedule/event/fosdem-2025-6750-mptcp-community-meetup-bof/

#MPTCP #FOSDEM #Brussels
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mptcp

Multipath TCP

Edited 9 months ago
#iperf3's next version should support #MPTCP thanks to a new '-m' (or --mptcp) option 🎉

Our PR, initially created in 2021, has recently been merged! It will no longer be needed to use iperf3 with "mptcpize run" on both sides to get MPTCP support, and it is enough to add -m only on the client side!

https://www.mptcp.dev/apps.html
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mptcp

Multipath TCP

Nice blog post from Marek (Cloudflare)!

Improvements for the client side are coming (and even already available with an up-to-date kernel ;-) )! Do not hesitate to tell Cloudflare it would be nice if they can support MPTCP on the server side ;-) https://blog.cloudflare.com/multi-path-tcp-revolutionizing-connectivity-one-path-at-a-time/
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mptcp

Multipath TCP

Interested to use #SSH with #MPTCP 🔀? While waiting for a native support in OpenSSH, there are workarounds: a new entry has just been added in our FAQ ⤵️
https://www.mptcp.dev/faq.html#how-to-enable-mptcp-support-with-openssh
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mptcp

Multipath TCP

"#Systemd 257 has been released. As usual, the list of changes is long; it includes support for multipath TCP in socket units" 🎉

https://lwn.net/Articles/1001657/
#MPTCP

Simply add this in your SSH server service file and it will support MPTCP:

[Socket]
SocketProtocol=mptcp
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mptcp

Multipath TCP

What happened around #MPTCP 🔀 last month?
Improvements, bug fixes, security audit, mptcpd 0.13, what's next, etc. Read on to find out more about that ⤵️

https://blog.mptcp.dev/2024/12/04/more-improvements-for-end-users.html
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mptcp

Multipath TCP

#MPTCP is supported by all major GNU/Linux distributions 🐧 but mptcpd daemon 😈 (and mptcpize) is not packaged in some of them. Anybody willing to help packaging mptcpd in these distro, e.g. #AlpineLinux and #NixOS? 🙂

A new page on mptcp.dev now lists the Linux distributions: https://www.mptcp.dev/apps.html#linux-distributions
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mptcp
repeated
matttbe@fosstodon.org

Matthieu Baerts

What happened around 🔀 in the last couple of months? Bug-fixes 🐛, improvements 🆕, app support ☑️, conferences 🎙️, what’s next 🔮: read on to find out more about what happened recently 👩‍💻⤵️

https://blog.mptcp.dev/2024/10/28/summer-update.html

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