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MultiPath TCP
From Gentoo Wiki (test)
MultiPath TCP (MPTCP) is an effort towards enabling the simultaneous use of several IP-addresses/interfaces by a modification of TCP that presents a regular TCP interface to applications, while in fact spreading data across several subflows. Benefits of this include better resource utilization, better throughput and smoother reaction to failures.
Installation
Get sources from mptcp or manually patch the Linux kernel.
Kernel
Now, configure the kernel with the following option:
KERNEL
'"`UNIQ--pre-00000000-QINU`"'
Using Coupled Congestion Control will guarantee fairness across a shared bottleneck, enable it:
KERNEL
'"`UNIQ--pre-00000003-QINU`"'