Patents by Inventor Kalpesh Zinjuwadia
Kalpesh Zinjuwadia 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: 9077607Abstract: A BGP capable packet network device is located at the boundary of an autonomous network and in communication with a peer BGP capable packet network device in a neighboring autonomous network. The BGP capable packet network device is comprised of one or more line cards for receiving and, processing and sending packets of information, and for receiving and forwarding routing update information to a route processor comprising the packet network device. The route processor runs a border gateway protocol which is configured with one or more policies that operate to filter the routing update information received from the line card. The routing update information filter is comprised of at least one variable length path attribute and the filter operates such that it only applies the variable length path attribute one time to the routing update information.Type: GrantFiled: July 23, 2010Date of Patent: July 7, 2015Assignee: Force10 Networks, Inc.Inventors: Kalpesh Zinjuwadia, Srikanth Rao
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Patent number: 8630297Abstract: A packet network system, such as an autonomous system, includes a plurality of packet network devices some of which are edge routers and some of which are core routers. Each of the edge and core routers include functionality that operates to receive network traffic, process the traffic as needed and to forward the traffic to its destination. Additionally, each router includes a traffic distribution function that operates to calculate path bandwidths for all of the paths over which the traffic can be forwarding through the system and to use the volume of traffic ingressing to the system, link utilization information and the calculated path bandwidth to redistribute the traffic in the system such that traffic loss in the system in minimized.Type: GrantFiled: February 8, 2011Date of Patent: January 14, 2014Assignee: Force10 Networks, Inc.Inventors: Krishnamurthy Subramanian, Kalpesh Zinjuwadia
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Patent number: 8611251Abstract: A packet network device, such as a router or switch, includes functionality that operates to receive network traffic, process the traffic as needed and to forward the traffic to its destination. Additionally, each router includes a weighted equal cost multipath routing function that operates to identify equal cost paths over which to forward the network traffic, to calculate a path weighting that is dependent upon the path bandwidth and to forward the traffic ingressing to it over each of the equal cost paths according to the calculated path weighting.Type: GrantFiled: February 8, 2011Date of Patent: December 17, 2013Assignee: Force10 Networks, Inc.Inventors: Krishnamurthy Subramanian, Kalpesh Zinjuwadia
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Publication number: 20130301640Abstract: A packet network device, such as a router or switch, includes functionality that operates to receive network traffic, process the traffic as needed and to forward the traffic to its destination. Additionally, each router includes a weighted equal cost multipath routing function that operates to identify equal cost paths over which to forward the network traffic, to calculate a path weighting that is dependent upon the path bandwidth and to forward the traffic ingressing to it over each of the equal cost paths according to the calculated path weighting.Type: ApplicationFiled: February 8, 2011Publication date: November 14, 2013Applicant: Force10 Networks, Inc.Inventors: Krishnamurthy Subramanian, Kalpesh Zinjuwadia
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Patent number: 8432914Abstract: A packet network device includes a route processor that operates to maintain one or more forwarding tables and it includes one or more line cards that operate to process information received by the packet network device from the network and to forward the information to its correct destination. The route processor also operates to identify which incoming prefixes can be used to update the forwarding tables or to identify prefixes stored in the packet network device that can be redistributed from one network protocol to another network protocol running on the route processor. A table management function running on the route processor operates to identify the best match between an incoming prefix and information included in policy statement associated with both an ordered prefix-list and a radix tree structure.Type: GrantFiled: November 22, 2010Date of Patent: April 30, 2013Assignee: Force 10 Networks, Inc.Inventors: Kalpesh Zinjuwadia, Srikanth Rao
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Publication number: 20120201241Abstract: A packet network device, such as a router or switch, includes functionality that operates to receive network traffic, process the traffic as needed and to forward the traffic to its destination. Additionally, each router includes a weighted equal cost multipath routing function that operates to identify equal cost paths over which to forward the network traffic, to calculate a path weighting that is dependent upon the path bandwidth and to forward the traffic ingressing to it over each of the equal cost paths according to the calculated path weighting.Type: ApplicationFiled: February 8, 2011Publication date: August 9, 2012Applicant: Force10 Networks, Inc.Inventors: Krishnamurthy Subramanian, Kalpesh Zinjuwadia
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Publication number: 20120201252Abstract: A packet network system, such as an autonomous system, includes a plurality of packet network devices some of which are edge routers and some of which are core routers. Each of the edge and core routers include functionality that operates to receive network traffic, process the traffic as needed and to forward the traffic to its destination. Additionally, each router includes a traffic distribution function that operates to calculate path bandwidths for all of the paths over which the traffic can be forwarding through the system and to use the volume of traffic ingressing to the system, link utilization information and the calculated path bandwidth to redistribute the traffic in the system such that traffic loss in the system in minimized.Type: ApplicationFiled: February 8, 2011Publication date: August 9, 2012Applicant: Force10 Networks, Inc.Inventors: KRISHNAMURTH SUBRAMANIAN, Kalpesh Zinjuwadia
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Publication number: 20120127997Abstract: A packet network device includes a route processor that operates to maintain one or more forwarding tables and it includes one or more line cards that operate to process information received by the packet network device from the network and to forward the information to its correct destination. The route processor also operates to identify which incoming prefixes can be used to update the forwarding tables or to identify prefixes stored in the packet network device that can be redistributed from one network protocol to another network protocol running on the route processor. A table management function running on the route processor operates to identify the best match between an incoming prefix and information included in policy statement associated with both an ordered prefix-list and a radix tree structure.Type: ApplicationFiled: November 22, 2010Publication date: May 24, 2012Applicant: Force 10 Networks, Inc.Inventors: KALPESH ZINJUWADIA, Srikanth Rao
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Publication number: 20120020364Abstract: A BGP capable packet network device is located at the boundary of an autonomous network and in communication with a peer BGP capable packet network device in a neighboring autonomous network. The BGP capable packet network device is comprised of one or more line cards for receiving and, processing and sending packets of information, and for receiving and forwarding routing update information to a route processor comprising the packet network device. The route processor runs a border gateway protocol which is configured with one or more policies that operate to filter the routing update information received from the line card. The routing update information filter is comprised of at least one variable length path attribute and the filter operates such that it only applies the variable length path attribute one time to the routing update information.Type: ApplicationFiled: July 23, 2010Publication date: January 26, 2012Applicant: Force10 Networks, Inc.Inventors: KALPESH ZINJUWADIA, Srikanth Rao
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Patent number: 7864706Abstract: A method is disclosed for preventing an unstable BGP Peer from repeatedly initializing unstable BGP connections. In one embodiment, BGP speakers are penalized for causing errors that result in BGP restarts. When a speaker accumulates enough penalty points, its peer notifies it that it has been dampened (prevented from establishing a BGP connection). A memory decay function allows the speaker to automatically attempt a new connection once a given amount of time has passed. The method allows at least two, and possibly more, BGP speakers to avoid network and processor costs from servicing unstable BGP peerings.Type: GrantFiled: April 4, 2008Date of Patent: January 4, 2011Assignee: Force 10 Networks, Inc.Inventors: Kalpesh Zinjuwadia, Arun Viswanathan