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).
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Patent number: 11290436Abstract: 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: GrantFiled: January 16, 2019Date of Patent: March 29, 2022Assignee: Cisco Technology, Inc.Inventors: Dave Persaud, Xueqiang Ma, Kalyan K. Ghosh, Kondal R. Boreddy
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Publication number: 20200099672Abstract: 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: ApplicationFiled: January 16, 2019Publication date: March 26, 2020Inventors: Dave PERSAUD, Xueqiang MA, Kalyan K. GHOSH, Kondal R. BOREDDY
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Patent number: 8750094Abstract: 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: GrantFiled: February 18, 2011Date of Patent: June 10, 2014Assignee: Cisco Technology, Inc.Inventors: Kalyan K. Ghosh, Praveen Jain, Shashank Gupta, Tushar Desai
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Patent number: 8605624Abstract: 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: GrantFiled: August 29, 2008Date of Patent: December 10, 2013Assignee: Cisco Technology, Inc.Inventors: Tushar Desai, Shashank Gupta, Praveen Jain, Kalyan K. Ghosh
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Patent number: 8170025Abstract: 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: GrantFiled: November 26, 2008Date of Patent: May 1, 2012Assignee: Cisco Technology, Inc.Inventors: Raymond J. Kloth, Thomas James Edsall, Kalyan K. Ghosh, Gaurav Rastogi, Dinesh Ganapathy Dutt, Matthew Cressa
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Publication number: 20110141906Abstract: 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: ApplicationFiled: February 18, 2011Publication date: June 16, 2011Applicant: CISCO TECHNOLOGY, INC.Inventors: Kalyan K. Ghosh, Praveen Jain, Shashank Gupta, Tushar Desai
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Patent number: 7916628Abstract: 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: GrantFiled: November 1, 2004Date of Patent: March 29, 2011Assignee: Cisco Technology, Inc.Inventors: Kalyan K. Ghosh, Praveen Jain, Shashank Gupta, Tushar Desai
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Patent number: 7899048Abstract: 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: GrantFiled: January 15, 2003Date of Patent: March 1, 2011Assignee: Cisco Technology, Inc.Inventors: David S. Walker, Kalyan K. Ghosh, Thomas J. Edsall
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Publication number: 20090103566Abstract: 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: ApplicationFiled: November 26, 2008Publication date: April 23, 2009Applicant: CISCO TECHNOLOGY, INC.Inventors: Raymond J. Kloth, Thomas James Edsall, Kalyan K. Ghosh, Gaurav Rastogi, Dinesh Ganapathy Dutt, Matthew Cressa
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Patent number: 7474666Abstract: 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: GrantFiled: September 3, 2003Date of Patent: January 6, 2009Assignee: Cisco Technology, Inc.Inventors: Raymond J. Kloth, Thomas James Edsall, Kalyan K. Ghosh, Gaurav Rastogi, Dinesh Ganapathy Dutt, Matthew Cressa
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Publication number: 20080316942Abstract: 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: ApplicationFiled: August 29, 2008Publication date: December 25, 2008Inventors: Tushar Desai, Shashank Gupta, Praveen Jain, Kalyan K. Ghosh
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Patent number: 7433326Abstract: 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: GrantFiled: May 5, 2003Date of Patent: October 7, 2008Assignee: Cisco Technology, Inc.Inventors: Tushar Desai, Shashank Gupta, Praveen Jain, Kalyan K. Ghosh
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Publication number: 20040100910Abstract: 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: ApplicationFiled: May 5, 2003Publication date: May 27, 2004Applicant: Andiamo Systems, Inc.Inventors: Tushar Desai, Shashank Gupta, Praveen Jain, Kalyan K. Ghosh