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:
Oct. 24, 2023
Filed:
Jul. 23, 2019
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Takayoshi Hirasawa, Tokyo, JP;
Hitoshi Irino, Tokyo, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
Transfer apparatuses perform communications for path control with a centralized control apparatus that performs centralized control from the outside of a switch cluster including the group of transfer apparatuses, through a path similar to D-plane (main signal). A packet flow controller serving as a separation unit that separates a packet for the inside of the cluster and a packet for the outside of the cluster transmitted through the similar path from each other, and an internal route engine that performs path control of obtaining a path for freely passing through a plurality of paths in the cluster are provided. The packet flow controller separates a path control packet for the inside of the cluster, and the engine performs, when a failure to communicate the path control packet for the inside thus separated occurs, path control of generating a path that bypasses a path with the failure.