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).

  • Patent number: 10880235
    Abstract: 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: Grant
    Filed: April 3, 2018
    Date of Patent: December 29, 2020
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventors: Ariel Cohen, Ashok Krishnamurthi, Viswanath Krishnamurthy, Frank Salzmann, David S. Allison, Cheng Tang
  • Publication number: 20180227248
    Abstract: 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: Application
    Filed: April 3, 2018
    Publication date: August 9, 2018
    Applicant: ORACLE INTERNATIONAL CORPORATION
    Inventors: Ariel Cohen, Ashok Krishnamurthi, Viswanath Krishnamurthy, Frank Salzmann, David S. Allison, Cheng Tang
  • Patent number: 9973446
    Abstract: 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: Grant
    Filed: August 20, 2009
    Date of Patent: May 15, 2018
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventors: Ariel Cohen, Ashok Krishnamurthi, Viswanath Krishnamurthy, Frank Salzmann, David S. Allison, Cheng Tang
  • Patent number: 9331963
    Abstract: 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: Grant
    Filed: September 24, 2010
    Date of Patent: May 3, 2016
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventors: Ashok Krishnamurthi, Ariel Cohen
  • Patent number: 9083550
    Abstract: 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: Grant
    Filed: October 29, 2012
    Date of Patent: July 14, 2015
    Assignee: Oracle International Corporation
    Inventors: Ariel Cohen, Ashok Krishnamurthi
  • Publication number: 20140122675
    Abstract: 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: Application
    Filed: October 29, 2012
    Publication date: May 1, 2014
    Inventors: Ariel Cohen, Ashok Krishnamurthi
  • Publication number: 20130138836
    Abstract: 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: Application
    Filed: August 20, 2009
    Publication date: May 30, 2013
    Applicant: Xsigo Systems
    Inventors: Ariel Cohen, Ashok Krishnamurthi, Viswanath Krishnamurthy, Frank Salzmann, David S. Allison, Cheng Tang
  • Patent number: 8291148
    Abstract: 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: Grant
    Filed: April 12, 2012
    Date of Patent: October 16, 2012
    Assignee: Xsigo Systems, Inc.
    Inventors: Shreyas Shah, Subramaniam Vinod, Ramalingam K. Anand, Ashok Krishnamurthi
  • Patent number: 8180949
    Abstract: 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: Grant
    Filed: September 9, 2011
    Date of Patent: May 15, 2012
    Assignee: Xsigo Systems, Inc.
    Inventors: Shreyas Shah, Subramaniam Vinod, Ramalingam K. Anand, Ashok Krishnamurthi
  • Publication number: 20120079143
    Abstract: 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: Application
    Filed: September 24, 2010
    Publication date: March 29, 2012
    Applicant: XSIGO SYSTEMS, INC.
    Inventors: Ashok Krishnamurthi, Ariel Cohen
  • Patent number: 8081654
    Abstract: 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: Grant
    Filed: March 12, 2010
    Date of Patent: December 20, 2011
    Assignee: Juniper Networks, Inc.
    Inventors: Stefan Dyckerhoff, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam Krishnamurthi Anand
  • Patent number: 8041875
    Abstract: 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: Grant
    Filed: October 14, 2008
    Date of Patent: October 18, 2011
    Assignee: Xsigo Systems, Inc.
    Inventors: Shreyas Shah, Subramaniam Vinod, Ramalingam K. Anand, Ashok Krishnamurthi
  • Publication number: 20110235642
    Abstract: 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: Application
    Filed: June 6, 2011
    Publication date: September 29, 2011
    Applicant: JUNIPER NETWORKS, INC.
    Inventors: Stefan DYCKERHOFF, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam K. Anand, Dennis C. Ferguson, Chang-Hong Wu
  • Patent number: 7983290
    Abstract: 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: Grant
    Filed: March 25, 2010
    Date of Patent: July 19, 2011
    Assignee: Juniper Networks, Inc.
    Inventors: Stefan Dyckerhoff, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam K Anand, Dennis C Ferguson, Chang-Hong Wu
  • Publication number: 20100177777
    Abstract: 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: Application
    Filed: March 25, 2010
    Publication date: July 15, 2010
    Applicant: JUNIPER NETWORKS, INC.
    Inventors: Stefan DYCKERHOFF, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam K. Anand, Dennis C. Ferguson, Chang-Hong Wu
  • Publication number: 20100165870
    Abstract: 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: Application
    Filed: March 12, 2010
    Publication date: July 1, 2010
    Applicant: JUNIPER NETWORKS, INC.
    Inventors: Stefan DYCKERHOFF, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam Krishnamurthi Anand
  • Patent number: 7715449
    Abstract: 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: Grant
    Filed: January 17, 2006
    Date of Patent: May 11, 2010
    Assignee: Juniper Networks, Inc.
    Inventors: Stefan Dyckerhoff, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam K. Anand, Dennis C. Ferguson, Chang-Hong Wu
  • Patent number: 7706357
    Abstract: 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: Grant
    Filed: September 5, 2006
    Date of Patent: April 27, 2010
    Assignee: Juniper Networks, Inc.
    Inventors: Stefan Dyckerhoff, Pankaj Patel, Pradeep Sindhu, Ashok Krishnamurthi, Hann-Hwan Ju, Ramalingam K. Anand
  • Patent number: 7519735
    Abstract: 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: Grant
    Filed: May 8, 2001
    Date of Patent: April 14, 2009
    Assignee: Juniper Networks, Inc.
    Inventors: Hann-Hwan Ju, Ashok Krishnamurthi, Ross Heitkamp, Antony Chatzigianis, Ken Kuwabara
  • Patent number: 7502884
    Abstract: 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: Grant
    Filed: July 11, 2005
    Date of Patent: March 10, 2009
    Assignee: XSIGO Systems
    Inventors: Shreyas Shah, Subramaniam Vinod, Ramalingam K. Anand, Ashok Krishnamurthi