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).

  • Patent number: 11848856
    Abstract: 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: Grant
    Filed: February 5, 2021
    Date of Patent: December 19, 2023
    Assignee: Extreme Networks, Inc.
    Inventors: Constantin Barcaru, Gautam Khera
  • Publication number: 20230388229
    Abstract: 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: Application
    Filed: August 9, 2023
    Publication date: November 30, 2023
    Applicant: Extreme Networks, Inc.
    Inventors: Lava K. LAVU, Constantin BARCARU
  • Patent number: 11792109
    Abstract: 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: Grant
    Filed: June 28, 2021
    Date of Patent: October 17, 2023
    Assignee: Extreme Networks, Inc.
    Inventors: Gautam Khera, Constantin Barcaru
  • Patent number: 11770332
    Abstract: 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: Grant
    Filed: February 5, 2021
    Date of Patent: September 26, 2023
    Assignee: Extreme Networks, Inc.
    Inventors: Constantin Barcaru, Gautam Khera, Lava K. Lavu, Gheorghe Croitoru
  • Patent number: 11695683
    Abstract: 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: Grant
    Filed: June 28, 2021
    Date of Patent: July 4, 2023
    Assignee: Extreme Networks, Inc.
    Inventors: Gautam Khera, Constantin Barcaru, Irina Maria Militaru, Bianca Elena Neagu
  • Patent number: 11689446
    Abstract: 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: Grant
    Filed: February 5, 2021
    Date of Patent: June 27, 2023
    Assignee: Extreme Networks, Inc.
    Inventors: Gautam Khera, Constantin Barcaru
  • Patent number: 11489757
    Abstract: 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: Grant
    Filed: June 28, 2021
    Date of Patent: November 1, 2022
    Assignee: Extreme Networks, Inc.
    Inventors: Gautam Khera, Constantin Barcaru
  • Publication number: 20220255856
    Abstract: 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: Application
    Filed: February 5, 2021
    Publication date: August 11, 2022
    Applicant: 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
  • Publication number: 20220255852
    Abstract: 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: Application
    Filed: February 5, 2021
    Publication date: August 11, 2022
    Applicant: 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
  • Publication number: 20220255845
    Abstract: 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: Application
    Filed: June 28, 2021
    Publication date: August 11, 2022
    Applicant: Extreme Networks, Inc.
    Inventors: Gautam KHERA, Constantin BARCARU, Irina Maria MILITARU, Bianca Elena NEAGU
  • Publication number: 20220255843
    Abstract: 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: Application
    Filed: June 28, 2021
    Publication date: August 11, 2022
    Applicant: Extreme Networks, Inc.
    Inventors: Gautam KHERA, Constantin BARCARU
  • Publication number: 20220255842
    Abstract: 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: Application
    Filed: February 5, 2021
    Publication date: August 11, 2022
    Applicant: Extreme Networks, Inc.
    Inventors: Constantin BARCARU, Gautam KHERA
  • Publication number: 20220255844
    Abstract: 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: Application
    Filed: June 28, 2021
    Publication date: August 11, 2022
    Applicant: Extreme Networks, Inc.
    Inventors: Gautam KHERA, Constantin BARCARU
  • Publication number: 20220255841
    Abstract: 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: Application
    Filed: February 5, 2021
    Publication date: August 11, 2022
    Applicant: Extreme Networks, Inc.
    Inventors: Gautam KHERA, Constantin BARCARU, Irina Maria MILITARU, Bianca Elena NEAGU
  • Patent number: 11019028
    Abstract: 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: Grant
    Filed: January 12, 2018
    Date of Patent: May 25, 2021
    Assignee: Extreme Networks, Inc.
    Inventors: Srikanth Keesara, Bjorn Haas, Constantin Barcaru
  • Publication number: 20190222557
    Abstract: 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: Application
    Filed: January 12, 2018
    Publication date: July 18, 2019
    Inventors: Srikanth Keesara, Bjorn Haas, Constantin Barcaru
  • Patent number: 9514091
    Abstract: 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: Grant
    Filed: November 15, 2012
    Date of Patent: December 6, 2016
    Assignee: Avaya Inc.
    Inventors: Constantin Barcaru, Gheorghe Croitoru, Andrei Pancu, Radu Popa
  • Publication number: 20140047105
    Abstract: 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: Application
    Filed: November 15, 2012
    Publication date: February 13, 2014
    Inventors: Constantin Barcaru, Gheorghe Croitoru, Andrei Pancu, Radu Popa