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. 08, 2009
Filed:
Sep. 03, 2007
Wilson Talaugon, Union City, CA (US);
Sridhar Subramaniam, Cupertino, CA (US);
Bill Chin, Belmont, CA (US);
Itai Aaronson, Belmont, CA (US);
Wilson Talaugon, Union City, CA (US);
Sridhar Subramaniam, Cupertino, CA (US);
Bill Chin, Belmont, CA (US);
Itai Aaronson, Belmont, CA (US);
Fortinet, Inc., Sunnyvale, CO (US);
Abstract
Passive replication methods and systems to facilitate fault tolerance in a network routing system are provided. In one embodiment, a fault associated with a processing engine (PE) of a network routing system is detected by monitoring the health of the network routing system PEs. Responsive to detecting a fault (e.g., a link failure, a failure of a virtual router (VR) or a failure of the PE): VRs that were operating on the PE prior to detection of the fault are identified; configuration information (e.g., a set of command lines in a configuration file) associated with the identified VRs is identified; and the identified VRs are dynamically recreated on a new PE based on the configuration information. For example, a command line interface engine may replay the command line set with a new slot ID and a PE ID of the new PE to recreate the VRs on the new PE.