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:
Dec. 29, 2015
Filed:
Jun. 17, 2013
The Board of Trustees of the University of Illinois, Urbana, IL (US);
Ahmed Khurshid, Champaign, IL (US);
Matthew Chapman Caesar, Buffalo Grove, IL (US);
Philip Brighten Godfrey, Champaign, IL (US);
The Board of Trustees of the University of Illinois, Urbana, IL (US);
Abstract
A network-wide verification system may be adapted with a data plane verification layer positioned between a set of multiple network devices and a controller in network communication with the devices, where the controller is configured to transmit packet-forwarding rules to the devices. The data plane verification layer monitors network rule modifications, such as monitoring modifications initiated by the network devices and/or by the controller, and verifies the validity of invariants of the monitored network according to multiple stored network invariants. The verification may be executed on parts of the network taking actions that are capable of being influenced by a new rule modification. The network invariants include conditions expected to be upheld in valid network operation as related to packet routing and the packet-forwarding rules.