Patents by Inventor Ashok Krishnamurthi
Ashok Krishnamurthi 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: 10880235Abstract: Provided is a novel approach for connecting servers to peripherals, such as NICs, HBAs, and SAS/SATA controllers. Also provided are methods of arranging peripherals within one or more I/O directors, which are connected to the servers over an Ethernet network. Such arrangement allows sharing the same resource among multiple servers.Type: GrantFiled: April 3, 2018Date of Patent: December 29, 2020Assignee: ORACLE INTERNATIONAL CORPORATIONInventors: Ariel Cohen, Ashok Krishnamurthi, Viswanath Krishnamurthy, Frank Salzmann, David S. Allison, Cheng Tang
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Publication number: 20180227248Abstract: Provided is a novel approach for connecting servers to peripherals, such as NICs, HBAs, and SAS/SATA controllers. Also provided are methods of arranging peripherals within one or more I/O directors, which are connected to the servers over an Ethernet network. Such arrangement allows sharing the same resource among multiple servers.Type: ApplicationFiled: April 3, 2018Publication date: August 9, 2018Applicant: ORACLE INTERNATIONAL CORPORATIONInventors: Ariel Cohen, Ashok Krishnamurthi, Viswanath Krishnamurthy, Frank Salzmann, David S. Allison, Cheng Tang
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Patent number: 9973446Abstract: Provided is a novel approach for connecting servers to peripherals, such as NICs, HBAs, and SAS/SATA controllers. Also provided are systems for arranging peripherals within one or more I/O directors, which are connected to the servers over an Ethernet network. Such arrangement allows sharing the same resource among multiple servers.Type: GrantFiled: August 20, 2009Date of Patent: May 15, 2018Assignee: ORACLE INTERNATIONAL CORPORATIONInventors: Ariel Cohen, Ashok Krishnamurthi, Viswanath Krishnamurthy, Frank Salzmann, David S. Allison, Cheng Tang
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Patent number: 9331963Abstract: Mechanisms provide hosts such as servers and mobile devices with access to virtualized I/O resources including virtual Host Bus Adapters (vHBAs) and virtual Network Interface Cards (vNICs) over a wireless I/O interconnect. Host applications access virtualized I/O resources using virtual device drivers that communicate with virtualized I/O resources on an I/O director using a reliable communication protocol running over a wireless network. I/O data is throttled if necessary based on wireless network considerations.Type: GrantFiled: September 24, 2010Date of Patent: May 3, 2016Assignee: ORACLE INTERNATIONAL CORPORATIONInventors: Ashok Krishnamurthi, Ariel Cohen
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Patent number: 9083550Abstract: Mechanisms are provided to allow servers connected over an InfiniBand fabric to communicate using multiple private virtual interconnects (PVIs). In particular embodiments, the PVIs appear as virtual Ethernet networks to users on individual servers and virtual machines running on the individual servers. Each PVI is represented on the server by a virtual network interface card (VNIC) and each PVI is mapped to its own InfiniBand multicast group. Data can be transmitted on PVIs as Ethernet packets fully encapsulated, including the layer 2 header, within InfiniBand messages. Broadcast and multicast frames are propagated using InfiniBand.Type: GrantFiled: October 29, 2012Date of Patent: July 14, 2015Assignee: Oracle International CorporationInventors: Ariel Cohen, Ashok Krishnamurthi
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Publication number: 20140122675Abstract: Mechanisms are provided to allow servers connected over an InfiniBand fabric to communicate using multiple private virtual interconnects (PVIs). In particular embodiments, the PVIs appear as virtual Ethernet networks to users on individual servers and virtual machines running on the individual servers. Each PVI is represented on the server by a virtual network interface card (VNIC) and each PVI is mapped to its own InfiniBand multicast group. Data can be transmitted on PVIs as Ethernet packets fully encapsulated, including the layer 2 header, within InfiniBand messages. Broadcast and multicast frames are propagated using InfiniBand.Type: ApplicationFiled: October 29, 2012Publication date: May 1, 2014Inventors: Ariel Cohen, Ashok Krishnamurthi
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Publication number: 20130138836Abstract: Provided is a novel approach for connecting servers to peripherals, such as NICs, HBAs, and SAS/SATA controllers. Also provided are methods of arranging peripherals within one or more I/O directors, which are connected to the servers over an Ethernet network. Such arrangement allows sharing the same resource among multiple servers.Type: ApplicationFiled: August 20, 2009Publication date: May 30, 2013Applicant: Xsigo SystemsInventors: Ariel Cohen, Ashok Krishnamurthi, Viswanath Krishnamurthy, Frank Salzmann, David S. Allison, Cheng Tang
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Patent number: 8291148Abstract: Methods and apparatus are provided for virtualizing resources including peripheral components and peripheral interfaces. Peripheral component such as hardware accelerators and peripheral interfaces such as port adapters are offloaded from individual servers onto a resource virtualization switch. Multiple servers are connected to the resource virtualization switch over an I/O bus fabric such as PCI Express or PCI-AS. The resource virtualization switch allows efficient access, sharing, management, and allocation of resources.Type: GrantFiled: April 12, 2012Date of Patent: October 16, 2012Assignee: Xsigo Systems, Inc.Inventors: Shreyas Shah, Subramaniam Vinod, Ramalingam K. Anand, Ashok Krishnamurthi
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Patent number: 8180949Abstract: Methods and apparatus are provided for virtualizing resources including peripheral components and peripheral interfaces. Peripheral component such as hardware accelerators and peripheral interfaces such as port adapters are offloaded from individual servers onto a resource virtualization switch. Multiple servers are connected to the resource virtualization switch over an I/O bus fabric such as PCI Express or PCI-AS. The resource virtualization switch allows efficient access, sharing, management, and allocation of resources.Type: GrantFiled: September 9, 2011Date of Patent: May 15, 2012Assignee: Xsigo Systems, Inc.Inventors: Shreyas Shah, Subramaniam Vinod, Ramalingam K. Anand, Ashok Krishnamurthi
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Publication number: 20120079143Abstract: Mechanisms provide hosts such as servers and mobile devices with access to virtualized I/O resources including virtual Host Bus Adapters (vHBAs) and virtual Network Interface Cards (vNICs) over a wireless I/O interconnect. Host applications access virtualized I/O resources using virtual device drivers that communicate with virtualized I/O resources on an I/O director using a reliable communication protocol running over a wireless network. I/O data is throttled if necessary based on wireless network considerations.Type: ApplicationFiled: September 24, 2010Publication date: March 29, 2012Applicant: XSIGO SYSTEMS, INC.Inventors: Ashok Krishnamurthi, Ariel Cohen
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Patent number: 8081654Abstract: A bandwidth divider and method for allocating bandwidth between a plurality of packet processors. The bandwidth divider includes a plurality of counters for measuring the bandwidth of data packets transferred from the bandwidth divider to a respective packet processor; and a controller for analyzing the plurality of counters and transferring a data packet to a selected packet processor based on the contents of the counters. The method monitors the bandwidth consumed by the packet processors; determines, based on the bandwidth consumed by the packet processors, which packet processor has consumed the least amount of bandwidth; and allocates a next data packet to the packet processor which has consumed the least amount of bandwidth.Type: GrantFiled: March 12, 2010Date of Patent: December 20, 2011Assignee: Juniper Networks, Inc.Inventors: Stefan Dyckerhoff, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam Krishnamurthi Anand
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Patent number: 8041875Abstract: Methods and apparatus are provided for virtualizing resources including peripheral components and peripheral interfaces. Peripheral component such as hardware accelerators and peripheral interfaces such as port adapters are offloaded from individual servers onto a resource virtualization switch. Multiple servers are connected to the resource virtualization switch over an I/O bus fabric such as PCI Express or PCI-AS. The resource virtualization switch allows efficient access, sharing, management, and allocation of resources.Type: GrantFiled: October 14, 2008Date of Patent: October 18, 2011Assignee: Xsigo Systems, Inc.Inventors: Shreyas Shah, Subramaniam Vinod, Ramalingam K. Anand, Ashok Krishnamurthi
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Publication number: 20110235642Abstract: A network device includes one or more sprayers, multiple packet processors, and one or more desprayers. The sprayers receive packets on at least one incoming packet stream and distribute the packets according to a load balancing scheme that balances the number of bytes of packet data that is given to each of the packet processors. The packet processors receive the packets from the sprayers and process the packets to determine routing information for the packets. The desprayers receive the processed packets from the packet processors and transmit the packets on at least one outgoing packet stream based on the routing information.Type: ApplicationFiled: June 6, 2011Publication date: September 29, 2011Applicant: JUNIPER NETWORKS, INC.Inventors: Stefan DYCKERHOFF, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam K. Anand, Dennis C. Ferguson, Chang-Hong Wu
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Patent number: 7983290Abstract: A network device includes one or more sprayers, multiple packet processors, and one or more desprayers. The sprayers receive packets on at least one incoming packet stream and distribute the packets according to a load balancing scheme that balances the number of bytes of packet data that is given to each of the packet processors. The packet processors receive the packets from the sprayers and process the packets to determine routing information for the packets. The desprayers receive the processed packets from the packet processors and transmit the packets on at least one outgoing packet stream based on the routing information.Type: GrantFiled: March 25, 2010Date of Patent: July 19, 2011Assignee: Juniper Networks, Inc.Inventors: Stefan Dyckerhoff, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam K Anand, Dennis C Ferguson, Chang-Hong Wu
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Publication number: 20100177777Abstract: A network device includes one or more sprayers, multiple packet processors, and one or more desprayers. The sprayers receive packets on at least one incoming packet stream and distribute the packets according to a load balancing scheme that balances the number of bytes of packet data that is given to each of the packet processors. The packet processors receive the packets from the sprayers and process the packets to determine routing information for the packets. The desprayers receive the processed packets from the packet processors and transmit the packets on at least one outgoing packet stream based on the routing information.Type: ApplicationFiled: March 25, 2010Publication date: July 15, 2010Applicant: JUNIPER NETWORKS, INC.Inventors: Stefan DYCKERHOFF, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam K. Anand, Dennis C. Ferguson, Chang-Hong Wu
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Publication number: 20100165870Abstract: A bandwidth divider and method for allocating bandwidth between a plurality of packet processors. The bandwidth divider includes a plurality of counters for measuring the bandwidth of data packets transferred from the bandwidth divider to a respective packet processor; and a controller for analyzing the plurality of counters and transferring a data packet to a selected packet processor based on the contents of the counters. The method monitors the bandwidth consumed by the packet processors; determines, based on the bandwidth consumed by the packet processors, which packet processor has consumed the least amount of bandwidth; and allocates a next data packet to the packet processor which has consumed the least amount of bandwidth.Type: ApplicationFiled: March 12, 2010Publication date: July 1, 2010Applicant: JUNIPER NETWORKS, INC.Inventors: Stefan DYCKERHOFF, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam Krishnamurthi Anand
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Patent number: 7715449Abstract: A network device includes one or more sprayers, multiple packet processors, and one or more desprayers. The sprayers receive packets on at least one incoming packet stream and distribute the packets according to a load balancing scheme that balances the number of bytes of packet data that is given to each of the packet processors. The packet processors receive the packets from the sprayers and process the packets to determine routing information for the packets. The desprayers receive the processed packets from the packet processors and transmit the packets on at least one outgoing packet stream based on the routing information.Type: GrantFiled: January 17, 2006Date of Patent: May 11, 2010Assignee: Juniper Networks, Inc.Inventors: Stefan Dyckerhoff, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam K. Anand, Dennis C. Ferguson, Chang-Hong Wu
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Patent number: 7706357Abstract: A bandwidth divider and method for allocating bandwidth between a plurality of packet processors. The bandwidth divider includes a plurality of counters for measuring the bandwidth of data packets transferred from the bandwidth divider to a respective packet processor; and a controller for analyzing the plurality of counters and transferring a data packet to a selected packet processor based on the contents of the counters. The method monitors the bandwidth consumed by the packet processors; determines, based on the bandwidth consumed by the packet processors, which packet processor has consumed the least amount of bandwidth; and allocates a next data packet to the packet processor which has consumed the least amount of bandwidth.Type: GrantFiled: September 5, 2006Date of Patent: April 27, 2010Assignee: Juniper Networks, Inc.Inventors: Stefan Dyckerhoff, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam K. Anand
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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: 7502884Abstract: Methods and apparatus are provided for virtualizing resources including peripheral components and peripheral interfaces. Peripheral component such as hardware accelerators and peripheral interfaces such as port adapters are offloaded from individual servers onto a resource virtualization switch. Multiple servers are connected to the resource virtualization switch over an I/O bus fabric such as PCI Express or PCI-AS. The resource virtualization switch allows efficient access, sharing, management, and allocation of resources.Type: GrantFiled: July 11, 2005Date of Patent: March 10, 2009Assignee: XSIGO SystemsInventors: Shreyas Shah, Subramaniam Vinod, Ramalingam K. Anand, Ashok Krishnamurthi