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.

Date of Patent:
Mar. 06, 2018

Filed:

Apr. 15, 2016
Applicant:

Tsinghua University, Beijing, CN;

Inventors:

Ke Xu, Beijing, CN;

Fan Yang, Beijing, CN;

Meng Shen, Beijing, CN;

Wenlong Chen, Beijing, CN;

Youjian Zhao, Beijing, CN;

Assignee:

TSINGHUA UNIVERSITY, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/56 (2006.01); H04L 12/755 (2013.01); H04L 12/721 (2013.01); H04L 12/851 (2013.01); H04L 12/703 (2013.01); H04L 12/46 (2006.01);
U.S. Cl.
CPC ...
H04L 45/021 (2013.01); H04L 12/4625 (2013.01); H04L 45/28 (2013.01); H04L 45/38 (2013.01); H04L 47/2483 (2013.01);
Abstract

The present disclosure provides a method and system for detecting normalization of forwarding behavior of a router in a core routing area. The method includes: obtaining data flow received by ports of a core router; performing matching check to the data flow according to the data flow state table; if the data flow does not match the data flow state table, checking state of the data flow to calculate a state check result S(i); determining whether the data flow state table needs to be updated, if yes, updating the data flow state table; and determining whether the state check result S(i) is a trigger state, if yes, calculate state r of the forwarding behavior of the core router, and determining whether the forwarding behavior of the core router is abnormal according to the state r of the forwarding behavior of the core router, if yes, generating an alert log.


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