Patents by Inventor Dinesh Ganapathy Dutt
Dinesh Ganapathy Dutt 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: 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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Patent number: 7782784Abstract: Methods and devices are provided for encapsulating FC frames from a network device as Ethernet frames. Preferably, the FC frames represent traffic for a plurality of ports of the network device. The encapsulated Ethernet frames may be input to a conventional network interface card of a personal computer (“PC”) or laptop. Therefore, encapsulating the FC frames allows an engineer to use software installed on a conventional PC to troubleshoot problems with a network using FC protocol. According to some aspects of the invention, FC frames may be truncated to various degrees, to allow smaller data frames to be output at an appropriate rate to the analyzing personal computer, laptop, etc.Type: GrantFiled: April 7, 2003Date of Patent: August 24, 2010Assignee: Cisco Technology, Inc.Inventors: Pawan Agrawal, Sujatha Sundaraaraman, Ritu Aggarwal, Silvano Gai, Dinesh Ganapathy Dutt
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Patent number: 7599360Abstract: Methods and apparatus for encapsulating a packet or frame for transmission in a storage area network are disclosed. A packet or frame compatible with a standard protocol employed in the storage area network is received or generated. The packet or frame is then encapsulated with a virtual storage area network identifier. The packet or frame may further be encapsulated with at least one of a TTL value, MPLS information, and a type of traffic to be carried by the packet or frame. For instance, the type of traffic to be carried by the packet or frame may include Ethernet, Fibre Channel, and Infiniband. Once encapsulated, the encapsulated packet or frame is sent over the storage area network. For instance, the encapsulated packet or frame may be generated as well as transmitted by a switch over an inter-switch link in the storage area network.Type: GrantFiled: December 26, 2001Date of Patent: October 6, 2009Assignee: Cisco Technology, Inc.Inventors: Thomas James Edsall, Dinesh Ganapathy Dutt, Silvano Gai
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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: 20040153854Abstract: Methods and devices are provided for encapsulating FC frames from a network device as Ethernet frames. Preferably, the FC frames represent traffic for a plurality of ports of the network device. The encapsulated Ethernet frames may be input to a conventional network interface card of a personal computer (“PC”) or laptop. Therefore, encapsulating the FC frames allows an engineer to use software installed on a conventional PC to troubleshoot problems with a network using FC protocol. According to some aspects of the invention, FC frames may be truncated to various degrees, to allow smaller data frames to be output at an appropriate rate to the analyzing personal computer, laptop, etc.Type: ApplicationFiled: April 7, 2003Publication date: August 5, 2004Applicant: Andiamo Systems, Inc.Inventors: Pawan Agrawal, Sujatha Sundaraaraman, Ritu Aggarwal, Silvano Gai, Dinesh Ganapathy Dutt
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Publication number: 20030118053Abstract: Methods and apparatus for encapsulating a packet or frame for transmission in a storage area network are disclosed. A packet or frame compatible with a standard protocol employed in the storage area network is received or generated. The packet or frame is then encapsulated with a virtual storage area network identifier. The packet or frame may further be encapsulated with at least one of a TTL value, MPLS information, and a type of traffic to be carried by the packet or frame. For instance, the type of traffic to be carried by the packet or frame may include Ethernet, Fibre Channel, and Infiniband. Once encapsulated, the encapsulated packet or frame is sent over the storage area network. For instance, the encapsulated packet or frame may be generated as well as transmitted by a switch over an inter-switch link in the storage area network.Type: ApplicationFiled: December 26, 2001Publication date: June 26, 2003Applicant: Andiamo Systems, Inc.Inventors: Thomas James Edsall, Dinesh Ganapathy Dutt, Silvano Gai