Patents by Inventor Anand Vinayagam
Anand Vinayagam 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: 9319299Abstract: The invention includes a method and apparatus for forwarding a packet from a first node toward a second node using a link aggregation group that includes as plurality of links connecting the first node and the second node. In one embodiment, a method includes selecting one of a plurality of ports of the link aggregation group using a weighting of the ports according to a respective plurality of port speeds of the ports of the link aggregation group and propagating the packet from the first node toward the second node via the selected one of the ports of the link aggregation group. In one embodiment, the port is selected using a port selection table weighted according to the ports speeds of the ports of the link aggregation group. In one embodiment, for each port of the link aggregation group, the number of table entries of the port selection table is substantially proportional to the port speed of that port of the link aggregation group.Type: GrantFiled: January 25, 2008Date of Patent: April 19, 2016Assignee: Alcatel LucentInventors: Paramesh Kailasam, Anand Vinayagam
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Patent number: 9172662Abstract: A virtual chassis system includes a plurality of network nodes configured with a master virtual chassis address. The network nodes are connected by virtual fabric link (VFLs) that provide a connection for exchange of data packets between the network nodes. The data packets include source MAC addresses and associated hardware device information, such as source chassis ID, source network interface identifier and source port identifier information. The network nodes use this information to maintain synchronized MAC address tables for forwarding of data packets in the virtual chassis system. One or more control protocols in the network node are used for topology discovery, master network node election, generation of routing tables, health monitoring and other functions.Type: GrantFiled: November 12, 2012Date of Patent: October 27, 2015Assignee: Alcatel LucentInventors: Amy Chung-Hua Chang, Roberto H. Jacob Da Silva, Nalinakshan Kunnath, Ignatius D. Santoso, Anand Vinayagam
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Patent number: 9148389Abstract: A virtual chassis system includes a plurality of network nodes configured with a master virtual chassis address. The network nodes are connected by virtual fabric link (VFLs) that provide a connection for exchange of packets between the network nodes. The packets include source MAC addresses and associated hardware device information, such as source chassis ID, source network interface identifier and source port identifier information. The network nodes use this information to maintain synchronized MAC address tables for forwarding of packets in the virtual chassis system.Type: GrantFiled: November 12, 2012Date of Patent: September 29, 2015Assignee: Alcatel LucentInventors: Roberto H. Jacob Da Silva, Gregory G. Page, Surajit Bhattacharya, Chung-Hua Chang, Stephen C. Hanka, Steve Larsen, Christopher Francis Ravenscroft, Eric W. Tolliver, Anand Vinayagam, Shaofu Wu, Ignatius D. Santoso, Nalinakshan Kunnath, Stephen R. Bates
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Patent number: 9059940Abstract: Aggregation switches connected to an edge node by a multi-chassis link aggregation group, wherein the aggregation switches are connected by a virtual fiber link that provides a connection for exchange of information between the Aggregation Switches regarding MAC addressing to synchronize MAC address tables. A transport control protocol defines a VLAN and multicast group of ports on the Aggregation Switch to receive management or control packets.Type: GrantFiled: January 20, 2011Date of Patent: June 16, 2015Assignee: Alcatel LucentInventors: Roberto H. Jacob Da Silva, Chung-Hua Amy Chang, Anand Vinayagam
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Patent number: 8913489Abstract: Aggregation switches are connected to an edge node by a multi-chassis link aggregation group and a virtual fiber link provides a connection for exchange of information between the aggregation switches regarding MAC addressing to synchronize MAC address tables across the aggregation switches. When failure of the virtual fiber link is detected, the multi-chassis link aggregation group is reconfigured into two or more link aggregates with each link aggregate connecting the edge node to one of the aggregation switches. A spanning tree protocol is initiated over the link aggregates to prevent loops in the network. MAC address tables are flushed and relearned with the two or more link aggregates.Type: GrantFiled: March 27, 2012Date of Patent: December 16, 2014Assignee: Alcatel LucentInventors: Anand Vinayagam, Roberto H. Jacob Da Silva
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Patent number: 8767735Abstract: Aggregation Switches connected to an edge node by a multi-chassis link aggregation group, wherein the Aggregation Switches are connected by a virtual fabric link that provides a connection for exchange of information between the Aggregation Switches regarding MAC addressing to synchronize MAC address tables.Type: GrantFiled: January 20, 2011Date of Patent: July 1, 2014Assignee: Alcatel LucentInventors: Roberto H. Jacob Da Silva, Chung-Hua Amy Chang, Anand Vinayagam, Sindhu K. Mohandas, Jeff S. Dallacqua, Jonathan B. Wong
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Publication number: 20130077621Abstract: A virtual chassis system includes a plurality of network nodes configured with a master virtual chassis address. The network nodes are connected by virtual fabric link (VFLs) that provide a connection for exchange of packets between the network nodes. The packets include source MAC addresses and associated hardware device information, such as source chassis ID, source network interface identifier and source port identifier information. The network nodes use this information to maintain synchronized MAC address tables for forwarding of packets in the virtual chassis system.Type: ApplicationFiled: November 12, 2012Publication date: March 28, 2013Inventors: Roberto H. Jacob Da Silva, Gregory G. Page, Surajit Bhattacharya, Chung-Hua Chang, Stephen C. Hanka, Steve Larsen, Christopher Francis Ravenscroft, Eric W. Tolliver, Anand Vinayagam, Shaofu Wu, Ignatius D. Santoso, Nalinakshan Kunnath, Stephen R. Bates
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Publication number: 20130064102Abstract: A virtual chassis system includes a plurality of network nodes configured with a master virtual chassis address. The network nodes are connected by virtual fabric link (VFLs) that provide a connection for exchange of data packets between the network nodes. The data packets include source MAC addresses and associated hardware device information, such as source chassis ID, source network interface identifier and source port identifier information. The network nodes use this information to maintain synchronized MAC address tables for forwarding of data packets in the virtual chassis system. One or more control protocols in the network node are used for topology discovery, master network node election, generation of routing tables, health monitoring and other functions.Type: ApplicationFiled: November 12, 2012Publication date: March 14, 2013Inventors: Amy Chung-Hua Chang, Roberto H. Jacob Da Silva, Nalinakshan Kunnath, Ignatius D. Santoso, Anand Vinayagam
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Publication number: 20120182866Abstract: Aggregation switches are connected to an edge node by a multi-chassis link aggregation group and a virtual fiber link provides a connection for exchange of information between the aggregation switches regarding MAC addressing to synchronize MAC address tables across the aggregation switches. When failure of the virtual fiber link is detected, the multi-chassis link aggregation group is reconfigured into two or more link aggregates with each link aggregate connecting the edge node to one of the aggregation switches. A spanning tree protocol is initiated over the link aggregates to prevent loops in the network. MAC address tables are flushed and relearned with the two or more link aggregates.Type: ApplicationFiled: March 27, 2012Publication date: July 19, 2012Applicant: ALCATEL-LUCENT USA INC.Inventors: Anand Vinayagam, Roberto H. Jacob Da Silva
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Publication number: 20120033541Abstract: Aggregation switches connected to an edge node by a multi-chassis link aggregation group, wherein the aggregation switches are connected by a virtual fiber link that provides a connection for exchange of information between the Aggregation Switches regarding MAC addressing to synchronize MAC address tables. A transport control protocol defines a VLAN and multicast group of ports on the Aggregation Switch to receive management or control packets.Type: ApplicationFiled: January 20, 2011Publication date: February 9, 2012Applicant: Alcatel-Lucent USA Inc.Inventors: Roberto H. Jacob Da Silva, Chung-Hua Amy Chang, Anand Vinayagam
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Publication number: 20120033665Abstract: Aggregation Switches connected to an edge node by a multi-chassis link aggregation group, wherein the Aggregation Switches are connected by a virtual fabric link that provides a connection for exchange of information between the Aggregation Switches regarding MAC addressing to synchronize MAC address tables.Type: ApplicationFiled: January 20, 2011Publication date: February 9, 2012Applicant: ALCATEL-LUCENT USA INC.Inventors: Roberto H. Jacob Da Silva, Chung-Hua Amy Chang, Anand Vinayagam, Sindhu K. Mohandas, Jeff S. Dallacqua, Jonathan B. Wong
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Patent number: 7881230Abstract: A switch discovers active neighboring peer devices of a switch. Such discovery includes facilitating communication of Link Aggregation Control Protocol Data Units (LACPDUs) for identifying a unique peer identifier assigned to each one of the neighboring peer devices. In response to discovering the active neighboring peer devices, the switch automatically assigning a link aggregation key to each one of a plurality of physical links over which the switch and one of the active neighboring peer devices communicate respective ones of the LACPDUs. Thereafter, the switch facilitates logically aggregation all of the physical links dependent upon the link aggregation key.Type: GrantFiled: October 29, 2007Date of Patent: February 1, 2011Assignee: Alcatel LucentInventors: Anand Vinayagam, Vincent Magret
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Publication number: 20090190580Abstract: The invention includes a method and apparatus for forwarding a packet from a first node toward a second node using a link aggregation group that includes as plurality of links connecting the first node and the second node. In one embodiment, a method includes selecting one of a plurality of ports of the link aggregation group using a weighting of the ports according to a respective plurality of port speeds of the ports of the link aggregation group and propagating the packet from the first node toward the second node via the selected one of the ports of the link aggregation group. In one embodiment, the port is selected using a port selection table weighted according to the ports speeds of the ports of the link aggregation group. In one embodiment, for each port of the link aggregation group, the number of table entries of the port selection table is substantially proportional to the port speed of that port of the link aggregation group.Type: ApplicationFiled: January 25, 2008Publication date: July 30, 2009Inventors: Paramesh Kailasam, Anand Vinayagam
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Publication number: 20090109998Abstract: A switch discovers active neighboring peer devices of a switch. Such discovery includes facilitating communication of Link Aggregation Control Protocol Data Units (LACPDUs) for identifying a unique peer identifier assigned to each one of the neighboring peer devices. In response to discovering the active neighboring peer devices, the switch automatically assigning a link aggregation key to each one of a plurality of physical links over which the switch and one of the active neighboring peer devices communicate respective ones of the LACPDUs. Thereafter, the switch facilitates logically aggregation all of the physical links dependent upon the link aggregation key.Type: ApplicationFiled: October 29, 2007Publication date: April 30, 2009Inventors: Anand Vinayagam, Vincent Magret