[$] Upstreaming multipath TCP The
multipath TCP (MPTCP) protocol (and the
Linux implementation of it) have been
under development for a solid decade; MPTCP offers a number of advantages for
devices that have more than one network interface available. Despite
having been deployed widely, though, MPTCP is still not supported by the
upstream Linux kernel. At the 2019 Linux Plumbers Conference, Matthieu
Baerts and Mat Martineau discussed the current state of the Linux MPTCP
implementation and what will be required to get it into the mainline
kernel.