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Multipath TCP: an overviewMultipath TCP: an overviewPosted Apr 1, 2013 21:08 UTC (Mon) by christophpaasch (subscriber, #54567)In reply to: Multipath TCP: an overview by cesarb Parent article: Multipath TCP: an overview
The protocol allows to not use 3G for data-traffic with the "backup-flag" (MP_PRIO-option in RFC 6824).
Or, it is also possible to simply not open up a subflow across 3G and only create it after the phone lost the WiFi connection. MPTCP supports break-before-make scenarios.
It is simply a question of instructing the kernel to do one or the other through some kind of configuration interface (may it be sockopts, sysctl,...)
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