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:
Nov. 19, 2024
Filed:
Jan. 27, 2020
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
A communication device, in which a protocol is workable, the protocol enabling formation of a redundancy configuration including a plurality of communication devices by use of a virtual IP address, includes: a table storage unit configured to store a table in which, for each of a plurality of destination networks connected to the communication device through a path, the virtual IP address and the destination network are associated with each other; and a control unit configured to identify, in response to detection of a failure in the path connected to one of the destination networks, the virtual IP address associated with the destination network by reference to the table and cause the identified virtual IP address to transition to another communication device, the another communication device forming the redundancy configuration with the communication device.