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:
Feb. 09, 2021
Filed:
Mar. 06, 2019
Yaoqing Liu, Potsdam, NY (US);
Garegin Grigoryan, Potsdam, NY (US);
Yaoqing Liu, Potsdam, NY (US);
Garegin Grigoryan, Potsdam, NY (US);
Clarkson University, Potsdam, NY (US);
Abstract
A system and method for building a data structure for determining if multiple routing or forwarding tables yield the same or different forwarding behaviors. VeriTable uses a single tree/trie traversal to quickly check if multiple forwarding tables are forwarding equivalent, yield routing loops, or black holes. VeriTable also uses the Longest Prefix Matching rule for lookups, e.g., checking if route updates in control plane are consistent with the ones in forwarding plane. VeriTable can be applied to network-wide abnormality diagnosis of network problems, such as scalable and efficient forwarding loop detection and avoidance in the data plane of a network. In addition, VeriTable can be extended to handle incremental updates applied to the forwarding tables in a network.