Patents Assigned to Packet Design, Inc.
  • System and method for identifying tunnel information without frequently polling all routers for all tunnel information
    Patent number: 8937946
    Abstract: A system and method uses messages and traps to identify routers to selectively request information about tunnels on a network in order to maintain tunnel information about a network to minimize the impact of maintaining such information.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: January 20, 2015
    Assignee: Packet Design, Inc.
    Inventors: Satish Kanna, Siddharth Taneja, Cengiz Alaettinoglu
  • SYSTEM AND METHOD FOR IDENTIFYING AN INGRESS ROUTER OF A FLOW WHEN NO IP ADDRESS IS ASSOCIATED WITH THE INTERFACE FROM WHICH THE FLOW WAS RECEIVED
    Publication number: 20140369238
    Abstract: A system and method collects information for VPN traffic from non edge routers that are coupled to edge routers and identifies the path the traffic took and the 5 customer corresponding to the VPN. The system and method also identifies the ingress router coupled to the non edge router from which the traffic was collected. The system and method may assign identifiers to-route targets.
    Type: Application
    Filed: September 1, 2014
    Publication date: December 18, 2014
    Applicant: Packet Design, Inc.
    Inventors: Cengiz Alaettinoglu, Hariharan Ananthakrishnan, Satish K. Kanna
  • System and method for identifying VPN traffic paths and linking VPN traffic and paths to VPN customers of a provider
    Patent number: 8422502
    Abstract: A system and method collects information for VPN traffic from non edge routers that are coupled to edge routers and identifies the path the traffic took and the customer corresponding to the VPN. The system and method also identifies the ingress router coupled to the non edge router from which the traffic was collected. The system and method may assign identifiers to route targets.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: April 16, 2013
    Assignee: Packet Design, Inc.
    Inventors: Cengiz Alaettinoglu, Hariharan Ananthakrishnan, Constantinos Bassias, Satish K Kanna, Roopesh Palasdeokar, Siddharth Taneja, Amit Yajurvedi
  • System and method for assisting in troubleshooting a network handling voice over internet protocol traffic
    Patent number: 8274901
    Abstract: A system and method allocates dropped packets from a call detail record in a voice over Internet Protocol to links or nodes the call traversed, and to events that occurred during the call and prefixes corresponding to the phones used in the call, along with a report in decreasing order of the dropped packets for the nodes, links, events and prefixes, to allow a system administrator to help identify the source of the dropped packets.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: September 25, 2012
    Assignee: Packet Design, Inc.
    Inventors: Stephen L Casner, Kedar Poduri, Rodrigo G Alonso, Cengiz Alaettinoglu, Van Jacobson
  • Method and system for causing intra-AS network traffic to be more evenly balanced
    Patent number: 8135834
    Abstract: A system and method enables the balancing of inter-AS traffic from a primary AS to a target AS by adding a virtual node in the primary AS that appears connected to the edge routers that advertise via (I)BGP the ability to forward communications the target AS, and modifying the (I)BGP messages reflected to the primary AS to indicate that only the virtual node may forward communications to the target AS.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: March 13, 2012
    Assignee: Packet Design, Inc.
    Inventors: Van Jacobson, Haobo Yu, Cengiz Alaettinoglu
  • System and method for identifying cost metrics for a network
    Patent number: 7688740
    Abstract: A system and method identifies the costs to be assigned to each link in a network that can more evenly balance the utilization of links in the network.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: March 30, 2010
    Assignee: Packet Design, Inc.
    Inventors: Van Jacobson, Haobo Yu
  • System and method for securing route processors against attack
    Patent number: 7539191
    Abstract: A system and method impedes attacks on route processors in an autonomous system using one device with a routable IP address that checks the format of routing messages and forwards them to one or more route processors without routable IP addresses.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: May 26, 2009
    Assignee: Packet Design, Inc.
    Inventors: Van Jacobson, Kedar Poduri, Satish K Kanna, Cengiz Alaettinoglu
  • Method and apparatus for allocating traffic among routers on a computer network
    Patent number: 7334045
    Abstract: A system and method allocates ranges of addresses that are reachable by more than one border router to one of the border routers capable of reaching those ranges of addresses and advertises those addresses as being reachable only by the border router to which each such range of addresses were assigned.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: February 19, 2008
    Assignee: Packet Design, Inc.
    Inventors: Van Jacobson, Haobo Yu
  • System and method for identifying cost metrics for a network
    Patent number: 7277393
    Abstract: A system and method identifies the costs to be assigned to each link in a network that can more evenly balance the utilization of links in the network.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: October 2, 2007
    Assignee: Packet Design, Inc.
    Inventors: Van Jacobson, Haobo Yu
  • System and method for identifying addresses to modify and the effects thereof
    Patent number: 7197573
    Abstract: A system and method identifies ranges of addresses that can be reallocated and/or split to cause traffic to be redirected in a network to reduce the utilization of the most utilized links in an autonomous system. The system and method then identifies the utilization of the autonomous system after the reallocation and/or split and reports on the differences of utilization pre- and post-split.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: March 27, 2007
    Assignee: Packet Design, Inc.
    Inventors: Van Jacobson, Haobo Yu, Cengiz Alaettinoglu
  • System and method for secure communication of routing messages
    Patent number: 7120792
    Abstract: A system and method distributes encryption and/or authentication capabilities among route processors in a manner that allows route processors in a set of route processors to back each other up in case one or more of the route processors in the set fail.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: October 10, 2006
    Assignee: Packet Design, Inc.
    Inventors: Van Jacobson, Kedar Poduri, Satish K Kanna, Cengiz Alaettinoglu, Archibald L Cobbs