Patents by Inventor Ponpandiaraj Rajarathinam
Ponpandiaraj Rajarathinam 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: 10931573Abstract: A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.Type: GrantFiled: May 2, 2016Date of Patent: February 23, 2021Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITEDInventors: Sathish Kumar Gnanasekaran, Badrinath Kollu, Richard L. Hammons, Ramkumar Vadivelu, Dan Norbert Retter, Jianqiang Zhou, Ponpandiaraj Rajarathinam, Daniel Ji Yong Park Chung
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Patent number: 10361997Abstract: Systems and techniques are described for performing proxy auto-discovery in an Internet Protocol version 6 (IPv6) network by using the destination options extension header field in the IPv6 header. Specifically, systems and techniques are described to enable a pair of proxies to transparently intercept connection handshake messages that are carried in IPv6 packets between two network nodes, and to use the destination options extension header field in the IPv6 packets to automatically discover each other.Type: GrantFiled: December 29, 2017Date of Patent: July 23, 2019Assignee: Riverbed Technology, Inc.Inventors: Ponpandiaraj Rajarathinam, Rajeev Kumar, Dinesh A. Gandhewar, Ananth Arumugam R
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Publication number: 20180191673Abstract: Systems and techniques are described for performing proxy auto-discovery in an Internet Protocol version 6 (IPv6) network by using the destination options extension header field in the IPv6 header. Specifically, systems and techniques are described to enable a pair of proxies to transparently intercept connection handshake messages that are carried in IPv6 packets between two network nodes, and to use the destination options extension header field in the IPv6 packets to automatically discover each other.Type: ApplicationFiled: December 29, 2017Publication date: July 5, 2018Applicant: Riverbed Technology, Inc.Inventors: Ponpandiaraj Rajarathinam, Rajeev Kumar, Dinesh A. Gandhewar, Ananth Arumugam R
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Publication number: 20160359737Abstract: A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.Type: ApplicationFiled: May 2, 2016Publication date: December 8, 2016Inventors: Sathish Kumar Gnanasekaran, Badrinath Kollu, Richard L. Hammons, Ramkumar Vadivelu, Dan Norbert Retter, Jianqiang Zhou, Ponpandiaraj Rajarathinam, Daniel Ji Yong Park Chung
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Patent number: 9158570Abstract: One embodiment of the present invention provides a system that facilitates quality of service (QoS) in a Fiber Channel (FC) host bus adaptor (HBA). In this system the bandwidth on an FC link between the HBA and the FC switch can be allocated into a plurality of logical channels, and a respective logical channel can transport data frames of variable length. Furthermore, a respective logical channel is associated with a dedicated buffer. During operation, the HBA communicates to an FC switch the HBA's capability of receiving or sending a data flow over a logical channel that couples the HBA to the FC switch. The HBA further receives logical-channel allocation information from the FC switch. Furthermore, the HBA associates data frames with a logical channel and transmits data frames to the FC switch on the corresponding logical channel.Type: GrantFiled: March 20, 2014Date of Patent: October 13, 2015Assignee: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Amit Kanda, Ramkumar Vadivelu, Vinodh Ravindran, Ponpandiaraj Rajarathinam
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Publication number: 20140204957Abstract: One embodiment of the present invention provides a system that facilitates quality of service (QoS) in a Fibre Channel (FC) host bus adaptor (HBA). In this system the bandwidth on an FC link between the HBA and the FC switch can be allocated into a plurality of logical channels, and a respective logical channel can transport data frames of variable length. Furthermore, a respective logical channel is associated with a dedicated buffer. During operation, the HBA communicates to an FC switch the HBA's capability of receiving or sending a data flow over a logical channel that couples the HBA to the FC switch. The HBA further receives logical-channel allocation information from the FC switch. Furthermore, the HBA associates data frames with a logical channel and transmits data frames to the FC switch on the corresponding logical channel.Type: ApplicationFiled: March 20, 2014Publication date: July 24, 2014Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Amit Kanda, Ramkumar Vadivelu, Vinodh Ravindran, Ponpandiaraj Rajarathinam
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Patent number: 8699513Abstract: One embodiment of the present invention provides a system that facilitates quality of service (QoS) in a Fiber Channel (FC) host bus adaptor (HBA). In this system the bandwidth on an FC link between the HBA and the FC switch can be allocated into a plurality of logical channels, and a respective logical channel can transport data frames of variable length. Furthermore, a respective logical channel is associated with a dedicated buffer. During operation, the HBA communicates to an FC switch the HBA's capability of receiving or sending a data flow over a logical channel that couples the HBA to the FC switch. The HBA further receives logical-channel allocation information from the FC switch. Furthermore, the HBA associates data frames with a logical channel and transmits data frames to the FC switch on the corresponding logical channel.Type: GrantFiled: May 12, 2008Date of Patent: April 15, 2014Assignee: Brocade Communications Systems, Inc.Inventors: Amit Kanda, Ramkumar Vadivelu, Vinodh Ravindran, Ponpandiaraj Rajarathinam
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Patent number: 8223633Abstract: F_PORTs of an edge switch are logically trunking with N_PORTs of a node device outside the fabric via a trunked group of communications links. The trunked N_PORTs of the node device and the trunked F_PORTs of the edge switch are configured to send and receive frames of a particular stream across the multiple trunked links for in-order communication with the other device. The node device outside the fabric initially negotiates with the edge switch using a sequence of fabric login requests and fabric login acceptances to establish the trunked connection between the devices (and their respective ports).Type: GrantFiled: October 3, 2008Date of Patent: July 17, 2012Assignee: Brocade Communications Systems, Inc.Inventors: Rajnish Gupta, Nhan T. Pham, Amod K. Dani, Ponpandiaraj Rajarathinam, Vineet Mathew Abraham
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Patent number: 8160072Abstract: One embodiment of the present invention provides a system that facilitates end-to-end quality of service (QoS) between a source and a destination in a network. During operation, the system allocates virtual channels on an output port of a switch to a number of quality of service (QoS) levels. The system further assigns a virtual channel to a traffic flow based on a QoS zone, wherein the QoS zone is identified by a host identifier, a target identifier, and a QoS level of the traffic flow. In addition, the system forwards data frames in the traffic flow via the assigned virtual channel.Type: GrantFiled: December 11, 2009Date of Patent: April 17, 2012Assignee: Brocade Communications Systems, Inc.Inventors: Sathish K. Gnanasekaran, Ponpandiaraj Rajarathinam, Vineet M. Abraham
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Publication number: 20110085557Abstract: A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.Type: ApplicationFiled: October 8, 2009Publication date: April 14, 2011Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Sathish Kumar Gnanasekaran, Badrinath Kollu, Richard L. Hammons, Ramkumar Vadivelu, Dan Norbert Retter, Jianqiang Zhou, Ponpandiaraj Rajarathinam, Daniel Ji Yong Park Chung