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1. WO2019210948 - CONTROLLER AND SWITCH FOR TRAFFIC ENGINEERING IN A SOFTWARE DEFINED NETWORK

Publication Number WO/2019/210948
Publication Date 07.11.2019
International Application No. PCT/EP2018/061227
International Filing Date 02.05.2018
IPC
H04L 12/851 2013.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
70Packet switching systems
801Flow control or congestion control
851Traffic type related actions, e.g. QoS or priority
H04L 12/911 2013.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
70Packet switching systems
911Network admission control and resource allocation, e.g. bandwidth allocation or in-call renegotiation
H04L 12/715 2013.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
70Packet switching systems
701Routing or path finding
715Hierarchical routing, e.g. clustered networks or inter-domain routing
CPC
H04L 45/64
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
64using an overlay routing layer
H04L 47/2441
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
47Traffic regulation in packet switching networks
10Flow control or congestion control
24depending on the type of traffic, e.g. priority or quality of service [QoS]
2441Flow classification
H04L 47/822
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
47Traffic regulation in packet switching networks
70Admission control or resource allocation
82Miscellaneous aspects
822Collecting or measuring resource availability data
H04L 47/829
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
47Traffic regulation in packet switching networks
70Admission control or resource allocation
82Miscellaneous aspects
829Topology based
Applicants
  • HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
  • POLITECNICO DI MILANO - DIPARTIMENTO DI ELETTRONICA, INFORMAZIONE E BIOINGEGNERIA [IT]/[IT]
Inventors
  • PARIS, Stefano
  • LEGUAY, Jeremie
  • CAPONE, Antonio
  • FILIPPINI, Ilario
  • SANVITO, Davide
Agents
  • KREUZ, Georg
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) CONTROLLER AND SWITCH FOR TRAFFIC ENGINEERING IN A SOFTWARE DEFINED NETWORK
(FR) CONTRÔLEUR ET COMMUTATEUR POUR L'INGÉNIERIE DU TRAFIC DANS UN RÉSEAU DÉFINI PAR LOGICIEL
Abstract
(EN) The present invention relates to traffic engineering in a Software Defined Network (SDN). In particular, the invention presents an SDN controller and a switch configured to detect Bottleneck-Limited Elastic (BLE) flows in the network. In particular, the controller is configured to receive information regarding one or more BLE flow candidates from the switch, to analyze the BLE flow candidates over all links of their routing paths to determine one or more BLE flows, and to modify resources of the determined one or more BLE flows. The switch is configured to determine one or more BLE flow candidates from flows traversing the switch, and to send information regarding the BLE flow candidates to a controller.
(FR) La présente invention concerne l'ingénierie de trafic dans un réseau défini par logiciel (SDN). En particulier, l'invention présente un contrôleur SDN et un commutateur configuré pour détecter des flux élastiques limités par étranglement (Bottleneck-Limited Elastic, BLE) dans le réseau. En particulier, le contrôleur est configuré pour recevoir des informations concernant un ou plusieurs flux BLE candidats à partir du commutateur, pour analyser les flux BLE candidats sur toutes les liaisons de leurs trajets d'acheminement pour déterminer un ou plusieurs flux BLE, et pour modifier les ressources du ou des flux BLE déterminés. Le commutateur est configuré pour déterminer un ou plusieurs flux BLE candidats à partir de flux traversant le commutateur, et pour envoyer des informations concernant flux BLE candidats à un contrôleur.
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