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:
Apr. 21, 2026
Filed:
Nov. 17, 2023
Moxa Inc., New Taipei City, TW;
Tsai-Wei Yang, New Taipei City, TW;
Moxa Inc., New Taipei City, TW;
Abstract
A primary network switch, configured in a main network operating with a first redundancy protocol, is used for coupling a subnet operating with a second redundancy protocol, and the primary network switch executes a backup method. The backup method includes sending a first control packet through at least one first port; in response to sending the first control packet, receiving an ACK packet of the first control packet; and in response to receiving the ACK packet of the first control packet, switching a state of a second port, sending a second control packet through the at least one first port according to the first redundancy protocol so as to update a MAC address table of the main network, and sending a third control packet through the second port according to the second redundancy protocol to update a MAC address table of the subnet.