Patents by Inventor Amogh Dhamdhere

Amogh Dhamdhere has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System and method for determination of routing information in a network
    Patent number: 8811395
    Abstract: A system and method to use network flow records to generate information about changes in network routing and to understand the impact of these changes on network traffic. The inferences made can be determinative, if sufficient information is available. If sufficient information is not available to make determinative inferences, inferences may be made that narrow the range of possible changes that may have occurred to network traffic and the underlying network.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: August 19, 2014
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Alexandre Gerber, Lee Breslau, Subhabrata Sen, Nicholas Duffield, Carsten Lund, Cheng Ee, Amogh Dhamdhere
  • System and method for determination of routing information in a network
    Patent number: 8477772
    Abstract: A system and method to use network flow records to generate information about changes in network routing and to understand the impact of these changes on network traffic. The inferences made can be determinative, if sufficient information is available. If sufficient information is not available to make determinative inferences, inferences may be made that narrow the range of possible changes that may have occurred to network traffic and the underlying network.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: July 2, 2013
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Alexandre Gerber, Lee Breslau, Subhabrata Sen, Nicholas Duffield, Carsten Lund, Cheng Ee, Amogh Dhamdhere
  • Indirect measurement methodology to infer routing changes using statistics of flow arrival processes
    Patent number: 8165019
    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.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: April 24, 2012
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Lee Breslau, Amogh Dhamdhere, Nicholas Duffield, Cheng Ee, Alexandre Gerber, Carsten Lund, Subhabrata Sen
  • Indirect measurement methodology to infer routing changes using statistics of flow arrival processes
    Publication number: 20110013525
    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.
    Type: Application
    Filed: July 14, 2009
    Publication date: January 20, 2011
    Inventors: Lee Breslau, Amogh Dhamdhere, Nicholas Duffield, Cheng Ee, Alexandre Gerber, Carsten Lund, Subhabrata Sen
  • SYSTEM AND METHOD FOR DETERMINATION OF ROUTING INFORMATION IN A NETWORK
    Publication number: 20100150005
    Abstract: A system and method to use network flow records to generate information about changes in network routing and to understand the impact of these changes on network traffic. The inferences made can be determinative, if sufficient information is available. If sufficient information is not available to make determinative inferences, inferences may be made that narrow the range of possible changes that may have occurred to network traffic and the underlying network.
    Type: Application
    Filed: December 16, 2008
    Publication date: June 17, 2010
    Applicant: AT&T MOBILITY II LLC
    Inventors: Alexandre Gerber, Lee Breslau, Subhabrata Sen, Nicholas Duffield, Carsten Lund, Cheng Ee, Amogh Dhamdhere