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1. WO2019212268 - METHOD AND DEVICE FOR MANAGING MOBILE NODE OF SDN CONTROLLER

Publication Number WO/2019/212268
Publication Date 07.11.2019
International Application No. PCT/KR2019/005291
International Filing Date 02.05.2019
IPC
H04L 12/721 2013.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
70Packet switching systems
701Routing or path finding
721Routing procedures, e.g. shortest path routing, source routing, link state routing or distance vector routing
H04W 40/36 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
40Communication routing or communication path finding
34Modification of an existing route
36due to handover
H04L 29/12 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
12characterised by the data terminal
CPC
H04L 2101/35
H04L 45/38
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
38Flow based routing
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 45/745
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
45Routing or path finding of packets in data switching networks
74Address processing for routing
745Address table lookup or address filtering
H04W 40/36
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
40Communication routing or communication path finding
34Modification of an existing route
36due to handover
H04W 80/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
80Wireless network protocols or protocol adaptations to wireless operation
04Network layer protocols, e.g. mobile IP [Internet Protocol]
Applicants
  • 성균관대학교 산학협력단 RESEARCH&BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY [KR]/[KR]
Inventors
  • 추현승 CHOO, Hyun Seung
  • 김영경 KIM, Young Kyoung
  • 사이드무하마드 라자 SYED, Muhammad Raza
  • 전세일 JEON, Se Il
  • 응웬띠엔 중 NGUYEN, Tien Dung
  • 정재엽 JEONG, Jae Yeop
Agents
  • 특허법인 로얄 ROYAL PATENT & LAW OFFICE
Priority Data
10-2018-005072802.05.2018KR
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD AND DEVICE FOR MANAGING MOBILE NODE OF SDN CONTROLLER
(FR) PROCÉDÉ ET DISPOSITIF POUR GÉRER UN NOEUD MOBILE DE CONTRÔLEUR SDN
(KO) SDN 컨트롤러의 모바일 노드 관리 방법 및 장치
Abstract
(EN) A method for managing a mobile node of an SDN controller according to an aspect of the present invention comprises the steps of: receiving a router solicitation message of a mobile node delivered by means of a first AP operated by an SDN controller; allocating a prefix to each flow on the basis of information relating to the flow type comprised in the router solicitation message, by means of the mobile node; storing the allocated prefix information in a binding cache entry (BCE) for each mobile node; transmitting, to the mobile node and by means of the first AP, a router advertisement message confirming that the information relating to the flow type has been registered to the SDN controller; and transmitting the flow being transmitted in the mobile node to a destination node in accordance with the prefix information stored in the BCE, wherein, in the router solicitation message, recorded is the information for distinguishing a first type which does not require session maintenance of the flow, a second type which requires session maintenance of the flow or a third type in which the IP of the flow is fixed, recorded by means of the mobile node, and, in the step for allocating the prefixes, a first prefix is allocated to the first-type and third-type flows, and a second prefix is allocated to the second-type flow.
(FR) Un procédé de gestion d'un noeud mobile d'un contrôleur SDN selon un aspect de la présente invention, comprend les étapes consistant à : recevoir un message de sollicitation de routeur d'un noeud mobile, délivré au moyen d'un premier AP exploité par un contrôleur SDN; attribuer un préfixe à chaque flux sur la base d'informations relatives au type de flux compris dans le message de sollicitation de routeur, au moyen du noeud mobile; stocker les informations de préfixe attribuées dans une entrée de mémoire cache de liaison (BCE) pour chaque noeud mobile; transmettre, au noeud mobile et au moyen du premier PA, un message d'annonce de routeur confirmant que les informations relatives au type de flux ont été enregistrées dans le contrôleur SDN; et transmettre le flux en cours de transmission dans le noeud mobile à un noeud de destination en fonction des informations de préfixe stockées dans le BCE. Dans le message de sollicitation de routeur, sont enregistrées des informations pour distinguer un premier type qui ne nécessite pas de maintien de session du flux, un deuxième type qui nécessite un maintien de session du flux ou un troisième type dans lequel l'IP du flux est fixe, enregistré au moyen du noeud mobile, et, dans l'étape d'attribution des préfixes, un premier préfixe est attribué au flux de premier type et de troisième type, et un second préfixe est attribué au flux de second type.
(KO) 본 발명의 일 측면에 따른 SDN컨트롤러의 모바일 노드 관리 방법방법은 상기 SDN 컨트롤러에 의하여 운영되는 제 1 AP를 통해 전달되는 모바일 노드의 라우터 접속 요청(Router Solicitation) 메시지를 수신하는 단계; 상기 모바일 노드에 의하여 상기 라우터 접속 요청 메시지에 포함된 플로우 유형에 대한 정보에 기초하여 각 플로우에 대해 접두부(prefix)를 할당하는 단계; 상기 할당된 접두부 정보를 상기 모바일 노드 별로 BCE(Binding cache entry)에 저장하는 단계; 상기 플로우 유형에 대한 정보가 SDN 컨트롤러에 등록되었음을 확인하는 라우터 광고(Router Advertisement) 메시지를 상기 제 1 AP를 통해 상기 모바일 노드에 전송하는 단계 및 상기 모바일 노드에서 전송되는 플로우를 상기 BCE에 저장된 접두부 정보에 따라 목적지 노드로 전송하는 단계를 포함하되, 상기 라우터 접속 요청 메시지에는 상기 모바일 노드가 기록한 플로우의 세션 유지가 불필요한 제 1 유형, 플로우의 세션 유지가 필요한 제 2 유형 또는 플로우의 IP가 고정되는 제 3 유형을 구분하는 정보가 기록되고, 상기 접두부를 할당하는 단계는 상기 제 1 유형 및 제 3 유형의 플로우에 대하여 제 1 접두부를 할당하고, 상기 제 2 유형의 플로우에 대하여 제 2 접두부를 할당하는 것이다.
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