Huston: Multipath TCP

[Posted June 10, 2015 by corbet]

Geoff Huston has written a lengthy column on multipath TCP. "For many scenarios there is little value in being able to use multiple addresses. The conventional behavior is where each new session is directed to a particular interface, and the session is given an outbound address as determined by local policies. However, when we start to consider applications where the binding of location and identity is more fluid, and where network connections are transient, and the cost and capacity of connections differ, as is often the case in todays mobile cellular radio services and in WiFi roaming services, then having a session that has a certain amount of agility to switch across networks can be a significant factor." (See also: LWN's look at the Linux multipath TCP implementation from 2013).

Huston: Multipath TCP

Posted Jun 11, 2015 0:28 UTC (Thu) by shemminger (subscriber, #5739) [Link] (1 responses)

Last I saw the patches were too broad (hit too many places) to realistically be considered acceptable for merging to mainline.

Huston: Multipath TCP

Posted Jun 11, 2015 16:19 UTC (Thu) by bokr (guest, #58369) [Link]

My new Galaxy Tab S 10.5 with 4G (the T805 model) seems to offer
various multipath options (e.g. download boosting, automatic switching
of a browsing session between WiFi and 4G LTE data, etc) The latter
seems to work, the others I haven't tried, but I wonder where in the
Android stack multipath as they have it is implemented, and how much is Linux.

Also hoping for an official Cyanogenmod issue to make this beauty (the screen
really is tops) mine to know in depth, and be free to write my own down-to-the-metal stuff for ;-)
(Sorry if this seems to advertise for Samsung, but credit where due is fair IMO)