Patents by Inventor Jacobus Van der Merwe

Jacobus Van der Merwe 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).

  • Publication number: 20090113057
    Abstract: Certain exemplary embodiments can comprise a method, which can comprise automatically providing content to an information device from a content distribution node of a plurality of content distribution nodes. The information device can be adapted to send a request for the content from the first content distribution node utilizing an Internet Protocol (IP) address of the content distribution node.
    Type: Application
    Filed: October 26, 2007
    Publication date: April 30, 2009
    Inventors: Jacobus Van der Merwe, Oliver Spatscheck
  • Publication number: 20080285541
    Abstract: A route control architecture allows a network operator to flexibly control routing between the traffic ingresses and egresses in a computer network, without modifying existing routers. An intelligent route service control point (IRSCP) replaces distributed BGP decision processes of conventional network routers with a route computation that is flexible and logically centralized but physically distributed. One embodiment supplements the traditional BGP decision process with a ranking decision process that allows route-control applications to explicitly rank traffic egresses on a per-destination, per-router basis. A straightforward set of correctness requirements prevents routing anomalies in implementations that are scalable and fault-tolerant.
    Type: Application
    Filed: May 19, 2007
    Publication date: November 20, 2008
    Inventors: Jacobus Van Der Merwe, Dan Pei, Thomas B. Scholl, Aman Shaikh, Alex Snoeren, Patrick Verkaik
  • Publication number: 20070283436
    Abstract: A multi-staged framework for detecting and diagnosing Denial of Service attacks is disclosed in which a low-cost anomaly detection mechanism is first used to collect coarse data, such as may be obtained from Simple Network Management Protocol (SNMP) data flows. Such data is analyzed to detect volume anomalies that could possibly be indicative of a DDoS attack. If such an anomaly is suspected, incident reports are then generated and used to trigger the collection and analysis of fine grained data, such as that available in Netflow data flows. Both types of collection and analysis are illustratively conducted at edge routers within the service provider network that interface customers and customer networks to the service provider. Once records of the more detailed information have been retrieved, they are examined to determine whether the anomaly represents a distributed denial of service attack, at which point an alarm is generated.
    Type: Application
    Filed: June 14, 2006
    Publication date: December 6, 2007
    Inventors: Nicholas Duffield, Jacobus Van Der Merwe, Vyas Sekar, Oliver Spatscheck
  • Publication number: 20070204338
    Abstract: An application provisioning device may be used to manage a profile of a host and provide data corresponding to a selected application for installation at a host. A reverse firewall may use the profile of the host to determine whether to allow or block particular network communication from an application running on the host. An indication of a selected application may be received at the application provisioning device. Configuration information may also be received at the application provisioning device. The application provisioning server may request an update to the profile of a host and transmit such a request. The profile may be updated to reflect the configuration information and/or information of the selected application. Data corresponding to the selected application may be updated and transmitted to a host computer, where it may be installed. Therefore, the installed application running on the host may operate without being prematurely blocked by the reverse firewall.
    Type: Application
    Filed: December 27, 2006
    Publication date: August 30, 2007
    Applicant: AT&T CORP
    Inventors: William Aiello, Charles Kalmanek, William Leighton, Patrick McDaniel, Subhabrata Sen, Oliver Spatscheck, Jacobus Van der Merwe
  • Publication number: 20060291473
    Abstract: Certain exemplary embodiments comprise a method comprising: for selected traffic that enters a backbone network via a predetermined ingress point and is addressed to a predetermined destination, via a dynamic tunnel, automatically diverting the selected traffic from the predetermined ingress point to a processing complex; and automatically forwarding the selected traffic from the processing complex toward the predetermined destination.
    Type: Application
    Filed: September 28, 2005
    Publication date: December 28, 2006
    Inventors: Christopher Chase, Nicholas Duffield, Albert Greenberg, Oliver Spatscheck, Jacobus Van der Merwe
  • Publication number: 20060291446
    Abstract: Certain exemplary embodiments comprise a method comprising a plurality of activities, comprising: for each of the plurality of routing entities in an AS: obtaining IGP topology information; learning available BGP routes associated with the routing entity; utilizing the available BGP routes and the IGP topology information for all routing entities in the AS, assigning the routing entity a customized routing decision comprising a BGP route; and sending the customized routing decision to the routing entity.
    Type: Application
    Filed: November 9, 2005
    Publication date: December 28, 2006
    Inventors: Donald Caldwell, Jennifer Rexford, Aman Shaikh, Jacobus Van Der Merwe
  • Publication number: 20060190998
    Abstract: A reverse firewall for removing undesirable traffic from a computing network, such as a virtual private network (VPN), is disclosed. The reverse firewall uses firewall rules that may be determined and maintained within the enterprise network to control communication sent between computers in the computing network. The reverse firewall rules may be used to identify the communications between computers in the network that are undesirable and/or intrusive. For example, a computer in a network that is infected with a worm or that is surreptitiously hosting a denial-of-service attack may be identified by the reverse firewall and quarantined. The reverse firewall may be implemented in hardware and/or software.
    Type: Application
    Filed: November 30, 2005
    Publication date: August 24, 2006
    Applicant: AT&T Corp
    Inventors: William Aiello, Charles Kalmanek, William Leighton, Patrick McDaniel, Subhabrata Sen, Oliver Spatscheck, Jacobus Van der Merwe
  • Publication number: 20060185014
    Abstract: Certain exemplary embodiments comprise a method comprising: within a backbone network: for backbone network traffic addressed to a particular target and comprising attack traffic and non-attack traffic, the attack traffic simultaneously carried by the backbone network with the non-attack traffic: redirecting at least a portion of the attack traffic to a scrubbing complex; and allowing at least a portion of the non-attack traffic to continue to the particular target without redirection to the scrubbing complex.
    Type: Application
    Filed: September 23, 2005
    Publication date: August 17, 2006
    Inventors: Oliver Spatscheck, Jacobus Van der Merwe
  • Publication number: 20060029035
    Abstract: The invention comprises a method and apparatus for managing route selection in a network. Specifically, the method comprises receiving a set of routes from each of a plurality of routers, filtering each of the sets of routes, and selecting at least one route from each of the filtered sets of routes according to routing information associated with each of the respective routers.
    Type: Application
    Filed: December 22, 2004
    Publication date: February 9, 2006
    Inventors: Christopher Chase, Albert Greenberg, Ali Iloglu, Charles Kalmanek, John Mulligan, Han Nguyen, Jennifer Rexford, Samir Saad, Aman Shaikh, Jacobus Van Der Merwe
  • Publication number: 20060007929
    Abstract: A transmit and receive system for transmitting data between a transmit site and a receive site. The system includes a tunnel source, router and modulator for dividing a transmit data stream having a first bit rate into multiple data streams with each of the multiple data streams having a bit rate which is lower than the first bit rate, transmitting each of the multiple data streams over a plurality of RF channels. The system further includes a demodulator and destination source for recombining the multiple data streams at the receive site to provide a receive data stream having a bit rate equal to the first bit rate.
    Type: Application
    Filed: August 31, 2005
    Publication date: January 12, 2006
    Inventors: Bhavesh Desai, Nemmara Shankaranarayanan, David Shur, Aleksandra Smiljanic, Todd Totland, Jacobus van der Merwe, Sheryl Woodward
  • Patent number: D383336
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: September 9, 1997
    Inventors: Willem Jacobus Van Der Merwe, Johannes Abraham Burger
  • Patent number: D389343
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: January 20, 1998
    Inventors: Willem Jacobus Van Der Merwe, Johannes Abraham Burger