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Machine translation
1. (WO2005032061) HIERARCHICAL LAYER 2 NETWORK
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2005/032061 International Application No.: PCT/JP2003/012129
Publication Date: 07.04.2005 International Filing Date: 24.09.2003
IPC:
H04L 12/44 (2006.01) ,H04L 12/56 (2006.01)
Applicants: OKUBO, Akira[JP/JP]; JP (UsOnly)
SHIMIZU, Keiichi[JP/JP]; JP (UsOnly)
KURODA, Masahiro[JP/JP]; JP (UsOnly)
MITSUBISHI DENKI KABUSHIKI KAISHA[JP/JP]; 2-3, Marunouchi 2-chome Chiyoda-ku, Tokyo 100-8310, JP (AllExceptUS)
NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY, INCORPORATED ADMINISTRATIVE AGENCY[JP/JP]; 4-2-1, Nukui-Kitamachi Koganei-shi, Tokyo 184-8795, JP (AllExceptUS)
Inventors: OKUBO, Akira; JP
SHIMIZU, Keiichi; JP
KURODA, Masahiro; JP
Agent: SAKAI, Hiroaki; Sakai International Patent Office Kasumigaseki Building 2-5, Kasumigaseki 3-chome Chiyoda-ku, Tokyo 100-6019, JP
Priority Data:
Title (EN) HIERARCHICAL LAYER 2 NETWORK
(FR) RESEAU BICOUCHE HIERARCHIQUE
(JA) 階層型レイヤ2ネットワーク
Abstract: front page image
(EN) A hierarchical layer 2 network includes a plurality of radio base stations/access points, a plurality of edge switches, and a plurality of branch switches hierarchically arranged between a mobile terminal and an uppermost node gateway switch. For transfer from the lower node of the hierarchy to the upper node, an entry is searched and transferred so as to optimize the route. In a frame forwarding where no address has been learned, transfer is performed to an upper node of the hierarchy, thereby suppressing flooding of the layer 2 switch.
(FR) L'invention porte sur un réseau bicouche hiérarchique comprenant une pluralité de stations de base radio/points d'accès, une pluralité de commutateurs marginaux et une pluralité de commutateurs de section disposés hiérarchiquement entre un terminal mobile et un commutateur de passerelle du noeud supérieur. Pour le transfert du noeud inférieur de la hiérarchie au noeud supérieur, on recherche et on transfère une entrée de manière à optimiser l'acheminement. Au cours de l'envoi d'une trame, s'il n'y a pas d'adresse apprise, le transfert est effectué vers un noeud supérieur de la hiérarchie, ce qui supprime l'acheminement par inondation du commutateur bicouche.
(JA) 移動端末と最上位のゲートウェイスイッチとの間で、複数の無線基地局/アクセスポイント、複数のエッジスイッチ、複数のブランチスイッチを階層的に構成した階層型レイヤ2ネットワークをにおいて、階層の下位方向から上位方向への転送に対してもエントリを検索して転送することで経路最適化をはかり、アドレスが学習されていないフレームのフォワーディングにおいて、階層の上位方向へ転送することでレイヤ2スイッチのフラディングを抑制する。
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)