Patents Assigned to Extreme Networks
  • Patent number: 11962370
    Abstract: A technique for improving wireless communication characteristics involving matching transmitter antenna patterns to receiver antenna patterns. In a specific implementation, the transmitter antenna pattern adapts to changing parameters, such as when a smartphone is initially held in a first orientation and is later held in a second orientation. Because the transmitter antenna pattern matches receiver antenna patterns, signal quality between stations improves. In some implementations, antennas are organized and mounted to maximize spatial diversity to cause peak gains in different directions.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: April 16, 2024
    Assignee: Extreme Networks, Inc.
    Inventors: Changming Liu, George Gang Chen, Hai Lin, Liangfu Zhang
  • Publication number: 20240089173
    Abstract: Disclosed herein are system, method, and computer program product embodiments for providing traffic visibility in a network. An embodiment operates by a third-party component receiving a copy of a first data packet during a first period of time. The third-party component extracts a first network parameter associated with the first period of time from the copy of the first data packet. The third-party component then predicts a baseline of normalcy for the first network parameter during a second period of time after the first period of time based on data associated with a copy of a second data packet and the first network parameter. Thereafter, the third-party component receives a copy of a third data packet during the second period of time, and extracts a second network parameter from the copy of the third data packet. The third-party component then determines that the second network parameter of the copy of the second data packet is an anomaly based on the baseline of normalcy for the first network parameter.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 14, 2024
    Applicant: Extreme Networks, Inc.
    Inventors: Shubharanjan Dasgupta, Mythil Raman, Prasanna Kumar Acharya, Ram Gopal Singh, Pranesh Kulkami
  • Publication number: 20240064165
    Abstract: Disclosed herein are system, method, and computer program product embodiments for providing an anomaly detection system. Some aspects of this disclosure include a method for detecting anomaly in a network device. The method includes determining one or more similarity values between a flow vector corresponding to a flow associated with the network device and one or more flow clusters associated with the network device. The method further includes determining a maximum similarity value as a maximum of the one or more similarity values and comparing the maximum similarity value to a threshold. The method also includes, in response to the maximum similarity value being equal to or greater than the threshold, updating a flow cluster associated with the maximum similarity value. The method also includes, in response to the maximum similarity measure being less than the threshold, detecting the anomaly in the network device.
    Type: Application
    Filed: October 18, 2023
    Publication date: February 22, 2024
    Applicant: Extreme Networks, Inc.
    Inventors: Giacomo BERNARDI, Donagh HORGAN, Jeffrey W. HASKELL, Markus NISPEL
  • Patent number: 11909606
    Abstract: Systems and methods are disclosed herein for monitoring health of each switch of a plurality of switches on a network by selectively mirroring packets transmitted by each switch of the plurality of switches. In some embodiments, control circuitry generates a plurality of mirroring parameters, each mirroring parameter comprising an instruction to mirror a respective type of packet. The control circuitry transmits the plurality of mirroring parameters to each switch of the plurality of switches on the network, and receives, from a switch, a packet that was mirrored by the switch according to a mirroring parameter of the plurality of mirroring parameters. The control circuitry determines the respective type of the packet, executes an analysis of contents of the packet based on the respective type of the packet, and determines a health of the switch based on results of the analysis.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: February 20, 2024
    Assignee: Extreme Networks, Inc.
    Inventors: Donald B. Grosser, Chun Zhang, Patrick A. Bosa, Markus Nispel
  • Publication number: 20240047848
    Abstract: A mounting device configured to be integrated with a network device to facilitate mounting of the network device is disclosed. In an embodiment, the mounting device is a twist-to-lock mounting device configured to be compatible with one or more standard types of ceiling rails, allowing network devices to be mounted in a non-destructive manner without requiring the use of tools.
    Type: Application
    Filed: October 10, 2023
    Publication date: February 8, 2024
    Applicant: Extreme Networks, Inc.
    Inventor: Gururaj GOVINDASAMY
  • Patent number: 11876281
    Abstract: A mounting device configured to be integrated with a network device to facilitate mounting of the network device is disclosed. In an embodiment, the mounting device is a twist-to-lock mounting device configured to be compatible with one or more standard types of ceiling rails, allowing network devices to be mounted in a non-destructive manner without requiring the use of tools.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: January 16, 2024
    Assignee: Extreme Networks, Inc.
    Inventor: Gururaj Govindasamy
  • Patent number: 11870649
    Abstract: Disclosed herein are system, method, and computer program product embodiments for providing traffic visibility in a network. An embodiment operates by a third-party component in communication with a network component—each located at a network's edge—maintaining a rule table including a first rule comprising first identifiers and a first action for deriving a first packet characteristic. The third-party component receives a first packet copy including second identifiers from the network component. Upon the second identifiers matching the first identifiers, the third-party component determines the rule table's second rule includes a second action for deriving a second packet characteristic. Thereafter, the third-party component receives a second packet copy comprising third identifiers from the network component.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: January 9, 2024
    Assignee: Extreme Networks, Inc.
    Inventors: Shubharanjan Dasgupta, Mythil Raman, Prasanna Kumar Acharya, Ram Gopal Singh, Pranesh Kulkarni
  • 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: 11824876
    Abstract: Disclosed herein are system, method, and computer program product embodiments for providing an anomaly detection system. Some aspects of this disclosure include a method for detecting anomaly in a network device. The method includes determining one or more similarity values between a flow vector corresponding to a flow associated with the network device and one or more flow clusters associated with the network device. The method further includes determining a maximum similarity value as a maximum of the one or more similarity values and comparing the maximum similarity value to a threshold. The method also includes, in response to the maximum similarity value being equal to or greater than the threshold, updating a flow cluster associated with the maximum similarity value. The method also includes, in response to the maximum similarity measure being less than the threshold, detecting the anomaly in the network device.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: November 21, 2023
    Assignee: Extreme Networks, Inc.
    Inventors: Giacomo Bernardi, Donagh Horgan, Jeffrey W. Haskell, Markus Nispel
  • Patent number: 11792288
    Abstract: Methods, systems, and devices are provided herein for establishing a proxy communication link for network devices. The proxy communication link can allow a network device, such as an access point, to communicate with a network device manager when the network device is in an error state. A proxy device, such as a smart phone, can be authenticated with the network device manager to provide a communication link and can communicate with the network device using an optical communication system. The proxy device can act as a relay between the network device and network device manager to allow the network device manager to diagnose the error state. Instructions can be sent to the network device or the proxy device to address the error state.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: October 17, 2023
    Assignee: Extreme Networks, Inc.
    Inventors: Gregor Vucajnk, Shyamsundar Pullela
  • 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
  • Publication number: 20230325509
    Abstract: Disclosed herein are system, method, and computer program product embodiments for verifying the integrity of a boot process without relying on a boot aggregate value. An embodiment operates by cryptographically validating, by a hardware root of trust, a first code module associated with a digital signature. The embodiment determines that the first code module was cryptographically validated and cryptographically measures the first code module thereby generating a first measurement. The embodiment stores a representation of the first measurement in a first platform configuration register (PCR) of a trusted platform module. The embodiment configures a remote attestation agent to instruct a remote attestation server to attest the value stored in the first PCR. The embodiment transmits a TPM attestation quote to the remote attestation server.
    Type: Application
    Filed: April 11, 2022
    Publication date: October 12, 2023
    Applicant: Extreme Networks, Inc.
    Inventors: Steve W. Schroder, Ramanuja Chaitanya CHAKRAVARTHULA, Kristopher F. Orjada, Bagavath Singh SWAMYNATHA PILLAI, Michael B. RASH, Albert TAO
  • 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: 11706841
    Abstract: A plug-in network device is disclosed. The plug-in network device can be used in association with a network management system and an infrastructure network device. The plug-in network device includes two antenna arrays, one of which is up-facing and one of which is front-facing. The plug-in network device can achieve wireless communication with the infrastructure network device via the up-facing antenna array and provide network services to wireless stations through the front-facing antenna array. The network management system can manage both the infrastructure network device and the plug-in network device.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: July 18, 2023
    Assignee: Extreme Networks, Inc.
    Inventors: George Gang Chen, Edward Chee, Gururaj Govindasamy
  • Patent number: 11695620
    Abstract: Provided herein are systems and methods for determining relationships between events occurring in networks. Notifications describing events occurring in networks can be received and processed to determine groups of network event types. A root-cause network can be generated based on the events, with the nodes of the root-cause network representing different event types and the edges of the root-cause network indicating directional, causal relationships between the nodes. A received network event can be processed to determine potential causes of the received network event based on the root-cause network and other events received by the network.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: July 4, 2023
    Assignee: Extreme Networks, Inc.
    Inventors: Donagh Horgan, Abdul Razak, Giacomo Bernardi
  • 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: 11659052
    Abstract: Techniques for synchronizing a network device to selectively operate according to a selectable operation policy. A system utilizing such techniques can a self-configuring network device operation coordination system and a self-configuring network device operation management system. A method utilizing such techniques can include synchronizing a network device to selectively operate according to a first operation policy and a second operation policy in providing network service access.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: May 23, 2023
    Assignee: Extreme Networks, Inc.
    Inventors: William Edward Lundgren, Alan Cuellar Amrod, Krishnamoorthy Narayanan, Richard Stephen Hector
  • Publication number: 20230124196
    Abstract: Provided herein are systems and methods for determining relationships between events occurring in networks. Notifications describing events occurring in networks can be received and processed to determine groups of network event types. A root-cause network can be generated based on the events, with the nodes of the root-cause network representing different event types and the edges of the root-cause network indicating directional, causal relationships between the nodes. A received network event can be processed to determine potential causes of the received network event based on the root-cause network and other events received by the network.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 20, 2023
    Applicant: Extreme Networks, Inc.
    Inventors: Donagh HORGAN, Abdul RAZAK, Giacomo BERNARDI