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1. (WO2017157457) SDN SUPPORT FOR DISJOINT MULTIPATH CONFIGURATION

Pub. No.:    WO/2017/157457    International Application No.:    PCT/EP2016/055929
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Sat Mar 19 00:59:59 CET 2016
IPC: H04L 12/715
H04L 12/707
H04L 12/735
H04L 12/721
Applicants: NEC LABORATORIES EUROPE GMBH
Inventors: OECHSNER, Simon
HASSELMEYER, Peer
Title: SDN SUPPORT FOR DISJOINT MULTIPATH CONFIGURATION
Abstract:
The present invention relates to SDN support for Disjoint Multipath Configuration. It allows a network controller (2) with network and traffic management functions and having knowledge of the network topology to support and control multipath connections, optimizing path selection and the number of subflows for these connections. These functions can be implemented without any changes to the client network stacks. The invention comprises, by a sender (3), initiating a multipath connection with a receiver (4) and establishing at least one subflow between the sender (3) and the receiver (4) along a first network path, and, by the network controller (2), determining the number of disjoint network paths available between the sender (3) and the receiver (4) and, based on this number, triggering the establishment of additional subflows between the sender (3) and the receiver (4) along network paths being at least partially disjoint to said first network path.