Patents by Inventor Ken Kuwabara
Ken Kuwabara 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).
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Patent number: 9106506Abstract: A router receives a packet at an ingress interface. The router classifies the received packet based on at least a first field value contained in the header of the packet. According to the classification of the received packet, the router associates one of the plurality of forwarding tables to the packet. The router then performs a lookup operation in the associated forwarding table according to at least a second field value contained in the header of the packet. Based on the lookup operation, the router determines an egress interface and transmits the received packet from the determined egress interface.Type: GrantFiled: September 9, 2010Date of Patent: August 11, 2015Assignee: Juniper Networks, Inc.Inventors: Ken Kuwabara, Steven Lin, Michael Langdon
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Publication number: 20110007743Abstract: A router receives a packet at an ingress interface. The router classifies the received packet based on at least a first field value contained in the header of the packet. According to the classification of the received packet, the router associates one of the plurality of forwarding tables to the packet. The router then performs a lookup operation in the associated forwarding table according to at least a second field value contained in the header of the packet. Based on the lookup operation, the router determines an egress interface and transmits the received packet from the determined egress interface.Type: ApplicationFiled: September 9, 2010Publication date: January 13, 2011Applicant: Juniper Networks, Inc.Inventors: Ken KUWABARA, Steven Lin, Michael Langdon
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Publication number: 20100284407Abstract: A router receives destination address information for a packet and determines, among entries in a first forwarding table, a closest match for the received destination address information. The router receives a pointer to a second forwarding table in accordance with the closest match determined in the first forwarding table and determines, among entries in the second forwarding table, a closest match for the received destination address information.Type: ApplicationFiled: July 23, 2010Publication date: November 11, 2010Applicant: JUNIPER NETWORKS, INC.Inventors: Manoj Leelanivas, Ravi Vaidyanathan, Ken Kuwabara, Steven Lin
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Patent number: 7813346Abstract: A router receives a packet at an ingress interface. The router classifies the received packet based on at least a first field value contained in the header of the packet. According to the classification of the received packet, the router associates one of the plurality of forwarding tables to the packet. The router then performs a lookup operation in the associated forwarding table according to at least a second field value contained in the header of the packet. Based on the lookup operation, the router determines an egress interface and transmits the received packet from the determined egress interface.Type: GrantFiled: November 21, 2001Date of Patent: October 12, 2010Assignee: Juniper Networks, Inc.Inventors: Ken Kuwabara, Steven Lin, Michael Langdon
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Patent number: 7787466Abstract: A router receives destination address information for a packet and determines, among entries in a first forwarding table, a closest match for the received destination address information. The router receives a pointer to a second forwarding table in accordance with the closest match determined in the first forwarding table and determines, among entries in the second forwarding table, a closest match for the received destination address information.Type: GrantFiled: July 26, 2006Date of Patent: August 31, 2010Assignee: Juniper Networks, Inc.Inventors: Manoj Leelanivas, Ravi Vaidyanathan, Ken Kuwabara, Steven Lin
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Patent number: 7519735Abstract: A network router employs a single board architecture that includes both a forwarding engine and an interface card concentrator. All of the circuits involved in routing are incorporated into a single board, reducing the system cost of the router. A single processor performs various functions in connection with these circuits, such as management of interface cards and the forwarding engine. In addition to lowering the system cost, the compact architecture allows higher density installation of interface cards.Type: GrantFiled: May 8, 2001Date of Patent: April 14, 2009Assignee: Juniper Networks, Inc.Inventors: Hann-Hwan Ju, Ashok Krishnamurthi, Ross Heitkamp, Antony Chatzigianis, Ken Kuwabara
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Patent number: 7277386Abstract: Techniques are described for distribution of label switched packets, such as multiprotocol label switched (MPLS) packets, across multiple physical data paths. The techniques may, for example, be used to load balance the label switched packets across an aggregated link having two or more logically associated physical interconnects. A network device, for example, includes an interface card to receive packets associated with a common label switched path (LSP), and a control unit to distribute the packets across multiple paths. The network device may include label data that maps ranges of labels, such as MPLS labels, to types of payloads carried by the label switched packets. In accordance with the label data, the control unit extracts flow information from the label switched packets and distributes the label switched packets across the paths based on the flow information.Type: GrantFiled: November 12, 2002Date of Patent: October 2, 2007Assignee: Juniper Networks, Inc.Inventors: Dennis C Ferguson, Nischal Sheth, Ken Kuwabara
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Patent number: 7106740Abstract: A router receives destination address information for a packet and determines, among entries in a first forwarding table, a closest match for the received destination address information. The router receives a pointer to a second forwarding table in accordance with the closest match determined in the first forwarding table and determines, among entries in the second forwarding table, a closest match for the received destination address information.Type: GrantFiled: March 29, 2002Date of Patent: September 12, 2006Assignee: Juniper Networks, Inc.Inventors: Manoj Leelanivas, Ravi Vaidyanathan, Ken Kuwabara, Steven Lin