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:
May. 26, 2009
Filed:
Nov. 05, 2006
Abraham R. Matthews, San Jose, CA (US);
Anna Berenberg, Los Altos, CA (US);
Abraham R. Matthews, San Jose, CA (US);
Anna Berenberg, Los Altos, CA (US);
Fortinet, Inc., Sunnyvale, CA (US);
Abstract
Systems and methods are provided for maintaining redundant master control blade management information in switch. According to one embodiment, a network operating system (NOS) is executed on processor elements of a switch. A distributed messaging layer channel is created among a dynamic set of control blades intercommunicating within the switch. Master control blade management information is maintained on a master control blade. Redundant master control blade management information is maintained on one or more standby control blades by performing bulk updates and flash updates to the redundant master control blade management information and the standby control blades periodically performing a consistency check against the redundant information. The bulk updates are triggered by dynamic events. The flash updates are triggered by individual changes to a global database. If the consistency check fails, then the standby control blade requests a bulk update from the master control blade.