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:
Sep. 17, 2019
Filed:
Dec. 23, 2017
Fortinet, Inc., Sunnyvale, CA (US);
Yong Zhang, Belmont, CA (US);
Fortinet, Inc., Sunnyvale, CA (US);
Abstract
Methods and systems for standby controller aided failover are provided. According to one embodiment, an active control channel and an active data channel are established by an active controller with a managed device via a management protocol. A standby control channel and a standby data channel are established by a standby controller with the managed device via the management protocol. A keep-alive message is periodically sent by the standby controller to the active controller. When a response to the keep-alive message is not received by the standby controller within a predefined time, failover from the active controller to the standby controller is initiated by: (i) taking over for the active controller; and (ii) notifying the managed device to direct subsequent management protocol messages to the standby controller via the standby control channel.