The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2002
Filed:
Jul. 27, 1998
Kenichi Nagami, Chiba-ken, JP;
Junko Ami, Kanagawa-ken, JP;
Yasuhiro Katsube, Kanagawa-ken, JP;
Takeshi Saito, Tokyo, JP;
Hiroshi Esaki, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Kawaskai, JP;
Abstract
A packet transfer scheme for transferring packets at a boundary of a plurality networks is disclosed. A network interconnection apparatus (router) communicates with a previous hop node in one of the plurality of networks by a first control message including a first identification information for identifying an upstream path from the previous hop node and a specification information for specifying a group of packets to be transferred on the upstream path, and with a next hop node in another of the plurality of networks by a second control message including a second identification information for identifying a downstream path to the next hop node and a specification information for specifying a group of packets to be transferred on the downstream path. Then, the network interconnection apparatus stores a first identifier at a layer lower than layer of the upstream path and a second identifier at a layer lower than layer of the downstream path corresponding to the upstream path, according to the first and second control messages, and transfers a packet from the upstream path to the corresponding downstream path, referring to the memory.