Real-world use of Linux multipath TCP

LWN looked at the Linux multipath TCPimplementation back in 2013. That code remains out of tree, but it nowseems that it isbeing used in some Samsung phones in Korea. "This serviceenables smartphone users to reach bandwidth of up to 1 Gbps on existingsmartphones. This is probably the fastest commercially deployed mobilenetwork. They achieve this high bandwidth by combining both fast LTE (withcarrier aggregation) and fast WiFi networks on Multipath TCP enabledsmartphones."(Thanks to Oliver Bonaventure).