Patents by Inventor Constantin Barcaru
Constantin Barcaru 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: 11848856Abstract: Disclosed herein are system, method, and computer program product aspects for generating and/or using virtual node(s) (e.g., virtual SPB node(s)) in a multi-area fabric (e.g., a multi-area SPB fabric). A multi-area network includes a first network area including a first set of network nodes. The multi-area network further includes a second network area including a second set of network nodes, where the second set of network nodes is outside of the first network area. The multi-area network further includes a virtual node including a logical Intermediate System to Intermediate System (ISIS) node representing at least one of the first set of network nodes and the second set of network nodes.Type: GrantFiled: February 5, 2021Date of Patent: December 19, 2023Assignee: Extreme Networks, Inc.Inventors: Constantin Barcaru, Gautam Khera
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Publication number: 20230388229Abstract: Provided herein are systems and methods for providing a MAC-based redistribution policy between networks in a multi-area network. A network can have a boundary node that communicates to neighboring networks. Boundary nodes can receive policy updates that identify which services are redistributable across network boundaries. Boundary nodes can receive a packet for a service, translate the packet's encapsulation, and forward the packet across the boundary towards a destination node. Boundary nodes can forward the packet such that it originates in the second network from a virtual node.Type: ApplicationFiled: August 9, 2023Publication date: November 30, 2023Applicant: Extreme Networks, Inc.Inventors: Lava K. LAVU, Constantin BARCARU
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Patent number: 11792109Abstract: Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.Type: GrantFiled: June 28, 2021Date of Patent: October 17, 2023Assignee: Extreme Networks, Inc.Inventors: Gautam Khera, Constantin Barcaru
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Patent number: 11770332Abstract: Provided herein are systems and methods for providing a MAC-based redistribution policy between networks in a multi-area network. A network can have a boundary node that communicates to neighboring networks. Boundary nodes can receive policy updates that identify which services are redistributable across network boundaries. Boundary nodes can receive a packet for a service, translate the packet's encapsulation, and forward the packet across the boundary towards a destination node. Boundary nodes can forward the packet such that it originates in the second network from a virtual node.Type: GrantFiled: February 5, 2021Date of Patent: September 26, 2023Assignee: Extreme Networks, Inc.Inventors: Constantin Barcaru, Gautam Khera, Lava K. Lavu, Gheorghe Croitoru
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Patent number: 11695683Abstract: Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.Type: GrantFiled: June 28, 2021Date of Patent: July 4, 2023Assignee: Extreme Networks, Inc.Inventors: Gautam Khera, Constantin Barcaru, Irina Maria Militaru, Bianca Elena Neagu
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Patent number: 11689446Abstract: Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.Type: GrantFiled: February 5, 2021Date of Patent: June 27, 2023Assignee: Extreme Networks, Inc.Inventors: Gautam Khera, Constantin Barcaru
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Patent number: 11489757Abstract: Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.Type: GrantFiled: June 28, 2021Date of Patent: November 1, 2022Assignee: Extreme Networks, Inc.Inventors: Gautam Khera, Constantin Barcaru
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Publication number: 20220255856Abstract: Provided herein are systems and methods for providing a MAC-based redistribution policy between networks in a multi-area network. A network can have a boundary node that communicates to neighboring networks. Boundary nodes can receive policy updates that identify which services are redistributable across network boundaries. Boundary nodes can receive a packet for a service, translate the packet's encapsulation, and forward the packet across the boundary towards a destination node. Boundary nodes can forward the packet such that it originates in the second network from a virtual node.Type: ApplicationFiled: February 5, 2021Publication date: August 11, 2022Applicant: Extreme Networks, Inc.Inventors: Constantin BARCARU, Gautam KHERA, Lava K. LAVU, Gheorghe CROITORU, Deborah E. FITZGERALD, Pamela M. LeBLANC, Irina Maria MILITARU, Bianca Elena NEAGU
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Publication number: 20220255852Abstract: Provided herein are systems and methods for managing redistribution and remapping of multicast services between networks in a multi-area network. Multicast streams can be sent through networks from a source node towards a boundary node. The boundary node can receive the multicast stream, remap a source node identifier and service instance identifier, and forward the multicast stream into a second network. The boundary node can receive a route for the multicast stream. The route can be installed in a link-state database and can be used to send the multicast stream through the multi-area network from the source node to a destination node.Type: ApplicationFiled: February 5, 2021Publication date: August 11, 2022Applicant: Extreme Networks, Inc.Inventors: Constantin BARCARU, Gautam Khera, Lava K. Lavu, Gheorghe Croitoru, Deborah E. Fitzgerald, Pamela M. LeBlanc, Irina Maria Militaru, Bianca Elena Neagu
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Publication number: 20220255845Abstract: Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.Type: ApplicationFiled: June 28, 2021Publication date: August 11, 2022Applicant: Extreme Networks, Inc.Inventors: Gautam KHERA, Constantin BARCARU, Irina Maria MILITARU, Bianca Elena NEAGU
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Publication number: 20220255843Abstract: Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.Type: ApplicationFiled: June 28, 2021Publication date: August 11, 2022Applicant: Extreme Networks, Inc.Inventors: Gautam KHERA, Constantin BARCARU
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Publication number: 20220255842Abstract: Disclosed herein are system, method, and computer program product aspects for generating and/or using virtual node(s) (e.g., virtual SPB node(s)) in a multi-area fabric (e.g., a multi-area SPB fabric). A multi-area network includes a first network area including a first set of network nodes. The multi-area network further includes a second network area including a second set of network nodes, where the second set of network nodes is outside of the first network area. The multi-area network further includes a virtual node including a logical Intermediate System to Intermediate System (ISIS) node representing at least one of the first set of network nodes and the second set of network nodes.Type: ApplicationFiled: February 5, 2021Publication date: August 11, 2022Applicant: Extreme Networks, Inc.Inventors: Constantin BARCARU, Gautam KHERA
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Publication number: 20220255844Abstract: Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.Type: ApplicationFiled: June 28, 2021Publication date: August 11, 2022Applicant: Extreme Networks, Inc.Inventors: Gautam KHERA, Constantin BARCARU
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Publication number: 20220255841Abstract: Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.Type: ApplicationFiled: February 5, 2021Publication date: August 11, 2022Applicant: Extreme Networks, Inc.Inventors: Gautam KHERA, Constantin BARCARU, Irina Maria MILITARU, Bianca Elena NEAGU
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Patent number: 11019028Abstract: Systems, methods, and apparatuses are disclosed herein for automatically assigning nicknames in a SPBM network. In some aspects, a first switch of a plurality of switches in the SPBM network is detected as being designated as responsible for assigning nicknames to the plurality of switches. Control circuitry responsively instantiates, at the nick name server, a DHCP service. The control circuitry detects, at the nickname server, a respective other switch of the plurality of switches in the SPBM network, and responsively assigns, using the DHCP service, a respective IP address for the respective other switch. A host portion of the respective IP address is assigned as the nickname for the respective other switch.Type: GrantFiled: January 12, 2018Date of Patent: May 25, 2021Assignee: Extreme Networks, Inc.Inventors: Srikanth Keesara, Bjorn Haas, Constantin Barcaru
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Publication number: 20190222557Abstract: Systems, methods, and apparatuses are disclosed herein for automatically assigning nicknames in a SPBM network. In some aspects, a first switch of a plurality of switches in the SPBM network is detected as being designated as responsible for assigning nicknames to the plurality of switches. Control circuitry responsively instantiates, at the nick name server, a DHCP service. The control circuitry detects, at the nickname server, a respective other switch of the plurality of switches in the SPBM network, and responsively assigns, using the DHCP service, a respective IP address for the respective other switch. A host portion of the respective IP address is assigned as the nickname for the respective other switch.Type: ApplicationFiled: January 12, 2018Publication date: July 18, 2019Inventors: Srikanth Keesara, Bjorn Haas, Constantin Barcaru
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Patent number: 9514091Abstract: Methods, systems and computer readable media for link aggregation using digests are described. In some implementations, the method can include obtaining information about each port in a group of one or more ports. The method can also include computing a digest corresponding to each port in the group of one or more ports, the digest being based on the information about the corresponding port. The method can further include determining whether each port in the group of one or more ports is suitable for aggregation in a link aggregation group by comparing the digest corresponding to each port with a digest of a port in the link aggregation group.Type: GrantFiled: November 15, 2012Date of Patent: December 6, 2016Assignee: Avaya Inc.Inventors: Constantin Barcaru, Gheorghe Croitoru, Andrei Pancu, Radu Popa
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Publication number: 20140047105Abstract: Methods, systems and computer readable media for link aggregation using digests are described. In some implementations, the method can include obtaining information about each port in a group of one or more ports. The method can also include computing a digest corresponding to each port in the group of one or more ports, the digest being based on the information about the corresponding port. The method can further include determining whether each port in the group of one or more ports is suitable for aggregation in a link aggregation group by comparing the digest corresponding to each port with a digest of a port in the link aggregation group.Type: ApplicationFiled: November 15, 2012Publication date: February 13, 2014Inventors: Constantin Barcaru, Gheorghe Croitoru, Andrei Pancu, Radu Popa