TCP Extensions for Multipath Operation with Multiple Addresses

Mon, 03/14/2011 - 22:56 by Olivier Bonaventure


TCP/IP communication is currently restricted to a single path per
connection, yet multiple paths often exist between peers. The
simultaneous use of these multiple paths for a TCP/IP session would
improve resource usage within the network, and thus improve user
experience through higher throughput and improved resilience to
network failure.

Multipath TCP provides the ability to simultaneously use multiple
paths between peers. This document presents a set of extensions to
traditional TCP to support multipath operation. The protocol offers
the same type of service to applications as TCP (i.e. reliable
bytestream), and provides the components necessary to establish and
use multiple TCP flows across potentially disjoint paths.

Alan Ford, Costin Raiciu, Mark Handley and Olivier Bonaventure
March 2011.
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