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:
Apr. 24, 2012
Filed:
Jul. 14, 2009
Indirect measurement methodology to infer routing changes using statistics of flow arrival processes
Lee Breslau, Basking Ridge, NJ (US);
Amogh Dhamdhere, La Jolla, CA (US);
Nicholas Duffield, Summit, NJ (US);
Cheng EE, Rockaway, NJ (US);
Alexandre Gerber, Madison, NJ (US);
Carsten Lund, Berkeley Heights, NJ (US);
Subhabrata Sen, New Providence, NJ (US);
Lee Breslau, Basking Ridge, NJ (US);
Amogh Dhamdhere, La Jolla, CA (US);
Nicholas Duffield, Summit, NJ (US);
Cheng Ee, Rockaway, NJ (US);
Alexandre Gerber, Madison, NJ (US);
Carsten Lund, Berkeley Heights, NJ (US);
Subhabrata Sen, New Providence, NJ (US);
AT&T Intellectual Property I, L.P., Atlanta, GA (US);
Abstract
Statistical methods are used to observe packet flow arrival processes and to infer routing changes from those observations. Packet flow arrivals are monitored using NetFlow or another packet flow monitoring arrangement. Packet flow arrivals are quantified by counting arrivals per unit time, or by measuring an inter-arrival time between flows. When a change in packet flow arrivals is determined to be statistically significant, a change in network routing protocol is reported.