Patents by Inventor Kalyan K. Ghosh

Kalyan K. Ghosh 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: 11290436
    Abstract: Techniques for key distribution are provided. A first symmetric key is generated for a first downstream site, and a second symmetric key is generated for a second downstream site. The first symmetric key is transmitted to the first downstream site, and the second symmetric key is transmitted to the second downstream site. Upon receiving an indication that the first symmetric key was successfully deployed at the first downstream site, the first symmetric key is deployed on a first network node of an upstream site. Finally, upon determining that the second symmetric key was not successfully deployed at the second downstream site, techniques include refraining from deploying the second symmetric key to a second network node of the upstream site, where the second network node continues to communicate with the second downstream site using an original symmetric key.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: March 29, 2022
    Assignee: Cisco Technology, Inc.
    Inventors: Dave Persaud, Xueqiang Ma, Kalyan K. Ghosh, Kondal R. Boreddy
  • Publication number: 20200099672
    Abstract: Techniques for key distribution are provided. A first symmetric key is generated for a first downstream site, and a second symmetric key is generated for a second downstream site. The first symmetric key is transmitted to the first downstream site, and the second symmetric key is transmitted to the second downstream site. Upon receiving an indication that the first symmetric key was successfully deployed at the first downstream site, the first symmetric key is deployed on a first network node of an upstream site. Finally, upon determining that the second symmetric key was not successfully deployed at the second downstream site, techniques include refraining from deploying the second symmetric key to a second network node of the upstream site, where the second network node continues to communicate with the second downstream site using an original symmetric key.
    Type: Application
    Filed: January 16, 2019
    Publication date: March 26, 2020
    Inventors: Dave PERSAUD, Xueqiang MA, Kalyan K. GHOSH, Kondal R. BOREDDY
  • Patent number: 8750094
    Abstract: N_Ports and F_Ports are provided with logic allowing designation of multiple virtual interfaces on a single host bus adaptor or other Fiber Channel interface, one virtual interface for each VSAN operating on the node interface. Node ports with this additional functionality are referred to as trunking N_Ports or TN_Ports. These ports have a functional design allowing creation of the multiple virtual interfaces as appropriate for the application at hand. This port design also includes logic for communicating with a peer fabric port to initialize and modify the configuration of the virtual interfaces on the TN_Port. A corresponding functional design and communication logic is provided for fabric ports, referred to herein as trunking F_Ports or TF_Ports.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: June 10, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Kalyan K. Ghosh, Praveen Jain, Shashank Gupta, Tushar Desai
  • Patent number: 8605624
    Abstract: Methods and devices are provided for detecting whether peer ports interconnecting two network devices can perform a novel protocol called Exchange Peer Parameters (“EPP”). If the peer ports are so configured to perform EPP, EPP services are exchanged between the peer ports. In a first phase, information is exchanged about peer port configurations of interest. In a second phase, the results of the exchange of information are applied to hardware and/or software of the respective ports, as needed.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: December 10, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Tushar Desai, Shashank Gupta, Praveen Jain, Kalyan K. Ghosh
  • Patent number: 8170025
    Abstract: Methods and devices are provided for non-disruptive monitoring of network traffic through one or more ports of a Fibre Channel network device. Preferred embodiments of the invention are used in conjunction with the switched port analyzer (“SPAN”) and/or remote SPAN (“RSPAN”) features. SPAN mode operation allows traffic through any Fibre Channel interface of a network device to be replicated and delivered to a single port on the same network device. Ingress SPAN allows the monitoring of some or all packets that ingress a specified port or ports. Egress SPAN allows the monitoring of some or all packets that egress a specified port or ports. RSPAN allows the delivery of the replicated traffic to a port on a remote network device. Filtering may be applied, for example, to SPAN packets having selected virtual storage area network numbers.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: May 1, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Raymond J. Kloth, Thomas James Edsall, Kalyan K. Ghosh, Gaurav Rastogi, Dinesh Ganapathy Dutt, Matthew Cressa
  • Publication number: 20110141906
    Abstract: N_Ports and F_Ports are provided with logic allowing designation of multiple virtual interfaces on a single host bus adaptor or other Fibre Channel interface, one virtual interface for each VSAN operating on the node interface. Node ports with this additional functionality are referred to as trunking N_Ports or TN_Ports. These ports have a functional design allowing creation of the multiple virtual interfaces as appropriate for the application at hand. This port design also includes logic for communicating with a peer fabric port to initialize and modify the configuration of the virtual interfaces on the TN_Port. A corresponding functional design and communication logic is provided for fabric ports, referred to herein as trunking F_Ports or TF_Ports.
    Type: Application
    Filed: February 18, 2011
    Publication date: June 16, 2011
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Kalyan K. Ghosh, Praveen Jain, Shashank Gupta, Tushar Desai
  • Patent number: 7916628
    Abstract: N_Ports and F_Ports are provided with logic allowing designation of multiple virtual interfaces on a single host bus adaptor or other Fiber Channel interface, one virtual interface for each VSAN operating on the node interface. Node ports with this additional functionality are referred to as trunking N_Ports or TN_Ports. These ports have a functional design allowing creation of the multiple virtual interfaces as appropriate for the application at hand. This port design also includes logic for communicating with a peer fabric port to initialize and modify the configuration of the virtual interfaces on the TN_Port. A corresponding functional design and communication logic is provided for fabric ports, referred to herein as trunking F_Ports or TF_Ports.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: March 29, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Kalyan K. Ghosh, Praveen Jain, Shashank Gupta, Tushar Desai
  • Patent number: 7899048
    Abstract: A method is disclosed for remotely monitoring network traffic through a generic network. A first data packet, which indicates a first destination network element, is received. A second data packet, which contains at least a part of the first data packet, is generated. The second data packet indicates a second destination network element that is configured to monitor network traffic. The second destination network element differs from the first destination network element.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: March 1, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: David S. Walker, Kalyan K. Ghosh, Thomas J. Edsall
  • Publication number: 20090103566
    Abstract: Methods and devices are provided for non-disruptive monitoring of network traffic through one or more ports of a Fibre Channel network device. Preferred embodiments of the invention are used in conjunction with the switched port analyzer (“SPAN”) and/or remote SPAN (“RSPAN”) features. SPAN mode operation allows traffic through any Fibre Channel interface of a network device to be replicated and delivered to a single port on the same network device. Ingress SPAN allows the monitoring of some or all packets that ingress a specified port or ports. Egress SPAN allows the monitoring of some or all packets that egress a specified port or ports. RSPAN allows the delivery of the replicated traffic to a port on a remote network device. Filtering may be applied, for example, to SPAN packets having selected virtual storage area network numbers.
    Type: Application
    Filed: November 26, 2008
    Publication date: April 23, 2009
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Raymond J. Kloth, Thomas James Edsall, Kalyan K. Ghosh, Gaurav Rastogi, Dinesh Ganapathy Dutt, Matthew Cressa
  • Patent number: 7474666
    Abstract: Methods and devices are provided for non-disruptive monitoring of network traffic through one or more ports of a Fibre Channel network device. Preferred embodiments of the invention are used in conjunction with the switched port analyzer (“SPAN”) and/or remote SPAN (“RSPAN”) features. SPAN mode operation allows traffic through any Fibre Channel interface of a network device to be replicated and delivered to a single port on the same network device. Ingress SPAN allows the monitoring of some or all packets that ingress a specified port or ports. Egress SPAN allows the monitoring of some or all packets that egress a specified port or ports. RSPAN allows the delivery of the replicated traffic to a port on a remote network device. Filtering may be applied, for example, to SPAN packets having selected virtual storage area network numbers.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: January 6, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Raymond J. Kloth, Thomas James Edsall, Kalyan K. Ghosh, Gaurav Rastogi, Dinesh Ganapathy Dutt, Matthew Cressa
  • Publication number: 20080316942
    Abstract: Methods and devices are provided for detecting whether peer ports interconnecting two network devices can perform a novel protocol called Exchange Peer Parameters (“EPP”). If the peer ports are so configured to perform EPP, EPP services are exchanged between the peer ports. In a first phase, information is exchanged about peer port configurations of interest. In a second phase, the results of the exchange of information are applied to hardware and/or software of the respective ports, as needed.
    Type: Application
    Filed: August 29, 2008
    Publication date: December 25, 2008
    Inventors: Tushar Desai, Shashank Gupta, Praveen Jain, Kalyan K. Ghosh
  • Patent number: 7433326
    Abstract: Methods and devices are provided for detecting whether peer ports interconnecting two network devices can perform a novel protocol called Exchange Peer Parameters (“EPP”). If the peer ports are so configured to perform EPP, EPP services are exchanged between the peer ports. In a first phase, information is exchanged about peer port configurations of interest. In a second phase, the results of the exchange of information are applied to hardware and/or software of the respective ports, as needed.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: October 7, 2008
    Assignee: Cisco Technology, Inc.
    Inventors: Tushar Desai, Shashank Gupta, Praveen Jain, Kalyan K. Ghosh
  • Publication number: 20040100910
    Abstract: Methods and devices are provided for detecting whether peer ports interconnecting two network devices can perform a novel protocol called Exchange Peer Parameters (“EPP”). If the peer ports are so configured to perform EPP, EPP services are exchanged between the peer ports. In a first phase, information is exchanged about peer port configurations of interest. In a second phase, the results of the exchange of information are applied to hardware and/or software of the respective ports, as needed.
    Type: Application
    Filed: May 5, 2003
    Publication date: May 27, 2004
    Applicant: Andiamo Systems, Inc.
    Inventors: Tushar Desai, Shashank Gupta, Praveen Jain, Kalyan K. Ghosh