Bypass An Inoperative Channel Patents (Class 370/225)
  • Patent number: 11329907
    Abstract: In one embodiment, resource availability reallocation is used in establishing one or more new designated multicast flow paths with guaranteed availability of resources currently allocated and/or used by one or more designated existing multicast flow path to allocate/use for the new designated flow path(s). These resources typically include allocated guaranteed bandwidth of a network path between two adjacent or non-adjacent nodes of the network, and possibly forwarding/processing/memory resources of a network node. One embodiment communicates multicast control messages between nodes identifying to establish a new multicast flow path with resource availability reallocation from a designated multicast flow path.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: May 10, 2022
    Assignee: Cisco Technology, Inc., a California corporation
    Inventors: Rishi Chhibber, Roshan Lal, Mankamana Prasad Mishra
  • Patent number: 11323308
    Abstract: Techniques are described to provide layer 2 (L2) circuit failover in the event connectivity to an Ethernet Virtual Private Network (EVPN) instance is lost. For example, if one of multi-homed provider edge (PE) devices loses connectivity to the EVPN instance, the PE device may mark its customer-facing interface as down and propagate the interface status to the access node such that the access node may update its routing information to switch L2 circuits to another one of the multi-homed PE devices having reachability to the EVPN instance. In some examples, the plurality of PE devices may further implement Connectivity Fault Management (CFM) techniques to propagate the interface status to the access node such that the access node may update its forwarding information to send traffic on a different L2 circuit to another one of the multi-homed PE devices having reachability to the EVPN instance.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: May 3, 2022
    Assignee: Juniper Networks, Inc.
    Inventors: Channasangamesh S Hugar, Babu Singarayan, Sharmila Koppula, Soumyodeep Joarder, Sudhin Jacob
  • Patent number: 11323178
    Abstract: In certain embodiments, a communication (comm) network has a plurality of interconnected comm systems and a transport controller, each comm system having one or more Layer 1 (L1) components connected to one or more Layer 3 (L3) components, wherein at least one L1 component is connected to an L1 component of a different comm system by a link. The transport controller queries L1 components in the comm network for channel characteristics (e.g., optical signal-to-noise ratios (OSNRs)) for links in the comm network and modifies a metric value for a link in the comm network based on the channel characteristic for the link, such that an L3 component transitions from (i) transmitting signals via a first comm path that includes the link to (ii) transmitting signals via a different, second comm path that does not include the link. In this way, system outages due to degraded links can be avoided.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: May 3, 2022
    Assignee: Charter Communications Operating, LLC
    Inventors: Thomas Dudley, Ognian Mitev
  • Patent number: 11310170
    Abstract: Some embodiments provide a novel method for deploying different virtual networks over several public cloud datacenters for different entities. For each entity, the method (1) identifies a set of public cloud datacenters of one or more public cloud providers to connect a set of machines of the entity, (2) deploys managed forwarding nodes (MFNs) for the entity in the identified set of public cloud datacenters, and then (3) configures the MFNs to implement a virtual network that connects the entity's set of machines across its identified set of public cloud datacenters. In some embodiments, the method identifies the set of public cloud datacenters for an entity by receiving input from the entity's network administrator. In some embodiments, this input specifies the public cloud providers to use and/or the public cloud regions in which the virtual network should be defined. Conjunctively, or alternatively, this input in some embodiments specifies actual public cloud datacenters to use.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: April 19, 2022
    Assignee: VMWARE, INC.
    Inventors: Israel Cidon, Prashanth Venugopal, Aran Bergman, Chen Dar, Alex Markuze, Eyal Zohar
  • Patent number: 11303549
    Abstract: Techniques are described for selectively pinging certain devices along a segment routing label switched path (LSP) to detect failures in the segment routing LSP. For example, an ingress device comprises one or more processors operably coupled to a memory that are configured to: in response to a request to verify connectivity of a segment routing LSP, configure a FEC stack specifying a stack of segment routing labels for the segment routing LSP; for each of the one or more devices identified from the FEC stack: generate a respective MPLS connectivity request packet for a respective device identified from an outermost FEC of the FEC stack; send the MPLS connectivity request packet to the respective device; receive an MPLS connectivity response packet that verifies connectivity of the respective device; and in response, update the FEC stack by removing the outermost FEC of the FEC stack that identifies the respective device.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: April 12, 2022
    Assignee: Juniper Networks, Inc.
    Inventors: Kapil Arora, Samson P. Ninan, Shraddha Hegde
  • Patent number: 11296908
    Abstract: Techniques are disclosed for an Ethernet Virtual Private Network (EVPN) Virtual Private Wire Service (VPWS) network with service interface-aware forwarding. In one example, a first network device signals to a second network device, using EVPN route advertisements, a multi-service service tunnel to transport network packets for a plurality of services. The services are identifiable by virtual local area network (VLAN) identifiers in the packets. The first network device is configured with a single transport interface for the service tunnel and the single transport interface is configured with respective service interfaces for the services. The first network device detects failure of a failed service interface of the service interfaces and outputs, in response to the failure, an EVPN route withdrawal message for the service tunnel that identifies the service corresponding to the failed service interface.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: April 5, 2022
    Assignee: Juniper Networks, Inc.
    Inventors: Wen Lin, Pankaj Kumar Gupta, Babu Singarayan, Sharmila Koppula, Manish Gupta, Kapil Arora
  • Patent number: 11290361
    Abstract: A device includes a programmable passive measurement hardware engine, a programmable active measurement hardware engine, and a configuration engine. The programmable passive measurement hardware engine is configured to collect statistical data, from data transmission at a network line rate, used for network measurement. The programmable active measurement hardware engine is configured to generate probe packets and wherein the programmable active measurement hardware engine is further configured to collect responses to the generated probe packets, wherein the collected responses are used for the network measurement. The configuration engine is configured to receive data settings and wherein the configuration engine is further configured to program the programmable passive measurement hardware engine and the programmable active measurement hardware engine with the received data settings.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: March 29, 2022
    Assignee: XILINX, INC.
    Inventors: Chengchen Hu, Ji Yang, Yan Zhang, Gordon J. Brebner, Siyi Qiao
  • Patent number: 11283644
    Abstract: When an access point device is aware of an internet access failure, the access point device can attempt to re-route the baseband content through a different access point for the purpose of using its hard-wired internet connection. An administrative function can allow the access point device to tunnel through the internet service provider (ISP) of another access point device if permission is granted to do so. The permission can be granted beforehand or it can be granted to on the fly. Consequently, if the packets cannot route via the normal, hard-wired path, a message to a secondary transceiver of the access point device can instruct the access point device to find an alternate path via the ISP of the other access point device.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: March 22, 2022
    Assignees: AT&T Intellectual Property I, L.P., AT&T Mobility II LLC
    Inventors: Sheldon Meredith, Brandon Hilliard, Zachary Meredith
  • Patent number: 11271775
    Abstract: Technologies for hairpinning network traffic include a compute device with a network interface controller (NIC) configured to receive, by a virtual Ethernet port aggregator (VEPA) agent of a media access control (MAC) of the NIC, a network packet from a virtual machine (VM). The VEPA agent is configured to transmit the received network packet to an agent deployed on an accelerator device of the NIC and the agent is configured to forward the received network packet to a virtual Ethernet bridge (VEB) hairpin agent of the accelerator device. The VEB hairpin agent is configured to determine whether a target destination of the network packet corresponds to another VM, return the received network packet to the agent deployed the accelerator device. The agent is further configured to forward the received network packet to the VEPA agent, which is further configured to transmit the received network packet to the other VM.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: March 8, 2022
    Assignee: Intel Corporation
    Inventors: Donald Skidmore, Joshua Hay, Anjali Singhai Jain, Parthasarathy Sarangam
  • Patent number: 11265938
    Abstract: An apparatus, a method, and a computer readable medium are provided. The apparatus is configured to transmit and/or receive control plane signaling related to the control of radio resources of a sidelink communication system to/from a user equipment (UE), wherein the control plane signaling is carried over a user plane, in particular through IP encapsulation, of a second communication system between the apparatus and the UE. Moreover, embodiments of the disclosure relate to a corresponding UE as well as corresponding methods.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: March 1, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Serkan Ayaz, Daniel Medina, Prajwal Keshavamurthy, Markus Martin Dillinger
  • Patent number: 11258632
    Abstract: A Storage Area Network (SAN) access includes a first aggregated switch device that is coupled to a host device, a Local Area Network (LAN), and a SAN, and a second aggregated switch device that is coupled to the host device, the LAN, and the SAN. The second aggregated switch device is connected to the first aggregated switch device via an Inter-Chassis Link (ICL). The second aggregated switch device detect that the ICL has become unavailable and, in response, prevents Internet Protocol traffic between the host device and the LAN while transmitting storage traffic between the host device and the SAN.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: February 22, 2022
    Assignee: Dell Products L.P.
    Inventors: Avinash Jayakumar, Vibin Varghese, Ramesh Kumar Subbiah
  • Patent number: 11246016
    Abstract: Methods, apparatuses, and embodiments related to a technique for controlling channel usage in a wireless network in a multi-band wireless networking system. In a wireless network with multiple wireless networking devices and one or more client devices, communications between the wireless networking devices occurs via a backhaul channel, and communication between the client(s) and the wireless networking devices occurs via a fronthaul channel. Based on interference characteristics of the wireless channels, a device determines a channel usage plan, and communicates the plan via the backhaul channel to the wireless networking devices of the wireless network.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: February 8, 2022
    Assignee: NETGEAR, INC.
    Inventors: Joseph Amalan Arul Emmanuel, Peiman Amini
  • Patent number: 11239932
    Abstract: Techniques for emulating a time division multiplexed (TDM) circuit using a packet switched network are described. First and second packet nodes are installed in a communication network. The first TDM node and second TDM node form a first span in the TDM circuit. First and second fiber connections are disconnected from the first and second TDM nodes, and connected to the first and second packet nodes. A portion of TDM data transmission across the first span is emulated using a packet connection formed by the first packet node and the second packet node. The TDM data transmission includes transport overhead data, and the packet connection emulates the transport overhead data.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: February 1, 2022
    Assignee: Cisco Technology, Inc.
    Inventors: Raghunandan Annavajjala, Anand B. Agarwal, Onkar R. Deshpande, Christian Schmutzer
  • Patent number: 11234289
    Abstract: A network node (200), a wireless device (202) and methods therein, for handling discontinuous transmission, DTX, in a communication using multiple uplink carriers. The communication involves a primary uplink carrier using a first Transmission Time Interval, TTI and a secondary uplink carrier using a second TTI which is different than the first TTI. Values of DTX parameters defined for only one of the first and second TTIs are selected (2:4) for the communication, and the wireless device (202) is instructed (2:7) to use the selected values of DTX parameters for transmission on both the primary uplink carrier and the secondary uplink carrier. Thereby, misalignment of DTX cycles employed on the two uplink carriers can be avoided or reduced.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: January 25, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Gerardo Agni Medina Acosta, Mark Curran, Cecilia Eklöf, Nianshan Shi
  • Patent number: 11218405
    Abstract: A method for service function chaining in a network includes defining, for a flow of packets, a chain of selected network service functions (NSFs) to be traversed by the flow. Each of the selected NSFs is associated with a programmable switch. The method also includes generating a chain establishment packet (CEP) that contains network identifier information (NII) about the selected NSFs and that is configured as a regular network packet to be delivered to the destination node along a network path that includes the programmable switches to which the selected NSFs is associated. Each programmable switch, upon receipt of the CEP and based on the NII about the selected NSFs contained in the CEP, performs installation of packet forwarding rules for the flow together with network address and port translation operations, and selects, on behalf of the respective NSF, socket parameters for use by the NSF for processing the flow.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: January 4, 2022
    Assignee: NEC CORPORATION
    Inventors: Giuseppe Siracusano, Roberto Bifulco
  • Patent number: 11212000
    Abstract: The disclosure provides for a system that includes a network controller. The network controller is configured to receive information from nodes of a network, where nodes include one node that is in motion relative to another node. The network controller is also configured to generate a table representing nodes, available storage at each node, and possible links in the network over a period of time based on the information, and determine a series of topologies of the network based on the table. Based on received client data including a data amount, the network controller is configured to determine flows for the topology. The network controller then is configured to generate a schedule of network configurations based on the flows, and send instructions to the nodes of the network for implementing the network configurations and transmitting client data.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: December 28, 2021
    Assignee: GOOGLE LLC
    Inventor: Brian Barritt
  • Patent number: 11212212
    Abstract: Example implementations relate to management of network topologies. A primary tree having multiple connection graphs is generated for each node in the network. Each connection graph has at least one ordered list of one or more network node connections and the generated connection graphs provide a full network fit for each node in the network. The connection graphs are stored in at least one network switch to be used for network switch functionality. Additional connection graphs are generated for one or more network nodes connections based at least on network link capacity and provide for sharing of one or more of network links between multiple network node connections. The additional connection graphs are stored in the at least one network switch to be used for subsequent network switch functionality.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: December 28, 2021
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Dave Winchell, Chris Franklin
  • Patent number: 11206558
    Abstract: A communication method for convergence of a 5G communication system for supporting a higher data transmission rate beyond a 4G system with an IoT technology, and a system therefor is provided. The disclosure may be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety-related service, and the like), based on a 5G communication technology and an IoT-related technology. The method includes performing radio link monitoring to support V2X communication in a next-generation mobile communication system.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: December 21, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sangyeob Jung, Hyunjeong Kang
  • Patent number: 11201809
    Abstract: Embodiments provide systems, methods, and computer program products to generate a network topology. Internet Protocol (IP) addresses may be collected that immediately precede a first IP address in a set of IP-address-sequences to obtain a first set of previous-hop IP addresses, where each IP-address-sequence in the set of IP-address-sequences comprises a sequence of IP addresses traversed by at least one packet. Next, each IP address in the first set of previous-hop IP addresses may be associated with a first logical node in the network topology.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: December 14, 2021
    Assignee: Riverbed Technology, Inc.
    Inventors: Karthikeyan Chandrashekar, Majid Raissi-Dehkordi, Walt Whimpenny, Paul Janes
  • Patent number: 11177876
    Abstract: The invention relates to a method for setting and operating redundant paths in a quantum communication network, wherein a transmitter implements simultaneous transmission of signals on a working path and protection paths. The signal transmitted on the working path is a primary signal, and the signals transmitted on the protection paths are follow-up signals. In a case that the working path is normal, the transmitter forwards the primary signal on the working path level by level, to implement long distance transmission of a quantum signal. In a case that the working path fails, a proxy working path is selected from the remaining protection paths with the highest priority, and the transmission of information is eventually completed on the proxy working path. It can be prevented that unknown quantum information is damaged and becomes unrecoverable during transmission, thereby greatly improving the security, stability, and reliability of information transmission during quantum communication.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: November 16, 2021
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Min Jiang, Tao Cai, Zhixin Xia, Qing Li
  • Patent number: 11160091
    Abstract: A cell using an allocated frequency band, a non-allocated frequency band, or a shared frequency band is controlled efficiently. A higher layer processing unit configured to configure a first configuration for monitoring an Enhanced Physical Downlink Control CHannel (EPDCCH) and a second configuration for measuring a Discovery Signal (DS); a reception processing unit configured to monitor a candidate of the EPDCCH, based on the first configuration; and a detection unit configured to detect the DS in a prescribed subframe to be determined, based on the second configuration are provided. In a case that simultaneous transmissions on the EPDCCH and the DS occur in a Licensed Assisted Access (LAA) cell, the EPDCCH is mapped onto a resource element different from a resource element corresponding to the DS in the prescribed subframe.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 26, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazuyuki Shimezawa, Naoki Kusashima, Wataru Ouchi, Takashi Hayashi
  • Patent number: 11159386
    Abstract: Systems and methods provide for enriching flow data to analyze network security, availability, and compliance. A network analytics system can capture flow data and metadata from network elements. The network analytics system can enrich the flow data by in-line association of the flow data and metadata. The network analytics system can generate multiple planes with each plane representing a dimension of enriched flow data. The network analytics system can generate nodes for the planes with each node representing a unique value or set of values for the dimensions represented by planes. The network analytics system can generate edges for the nodes of the planes with each edge representing a flow between endpoints corresponding to the nodes. The network analytics system can update the planes in response to an interaction with the planes or in response to a query.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: October 26, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Matthew Lawson Finn, II, Alok Lalit Wadhwa, Navindra Yadav, Jerry Xin Ye, Supreeth Rao, Prasannakumar Jobigenahally Malleshaiah, Tapan Shrikrishna Patwardhan, Umamaheswaran Arumugam, Aiyesha Ma, Darshan Shrinath Purandare
  • Patent number: 11146090
    Abstract: The present disclosure provides a method for transmitting information in a battery management system. The method includes: determining, from a plurality of slave nodes, a fault slave node that communicates abnormally with a master node in the battery management system; selecting a target slave node from the plurality of slave nodes, wherein the target slave node is a slave node that communicates normally with both the master node and the fault slave node; transmitting frequency conversion information to the target slave node, so that the target slave node forwards the frequency conversion information to the fault slave node, and the fault slave node performs a frequency conversion based on the frequency conversion information; and transmitting information with the fault slave node using a frequency after the frequency conversion. According to embodiments of the present disclosure, the reliability of wireless communication in the battery management system can be improved.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: October 12, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Zhimin Dan, Wenbin Lu, Wei Zhang, Yizhen Hou, Jia Xu, Jiechao Luo, Teng Yu
  • Patent number: 11121927
    Abstract: Aspects of the technology provide solutions for determining a time period (“epoch”) required to monitor or analyze a tenant network. Some implementations of the technology include a process for making automatic epoch determinations, which includes steps for identifying one or more network parameters for a tenant network, analyzing the tenant network using the network parameters to discover one or more configuration settings of the tenant network, and determining a first epoch for the tenant network, the first epoch corresponding with a period of time to complete analysis of the tenant network using the network parameters. In some aspects, the process can further include steps for generating a tenant profile for the tenant network, the tenant profile based on the network parameters, the first epoch, and the one or more configuration settings of the tenant network. Systems and machine-readable media are also provided.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: September 14, 2021
    Assignee: Cisco Technology, Inc.
    Inventors: Chetan Narsude, Gaurav Gupta, Shadab Nazar, Pavan Mamillapalli, Sundar Iyer
  • Patent number: 11115153
    Abstract: A method for transmitting data in flexible Ethernet (FlexE) and a device comprising transmitting data in FlexE whereby a first FlexE device receives, according to a first client calendar, data from a second FlexE device; the first FlexE device determines, based on an error data block in the data, that a first timeslot is damaged; the first FlexE device adds a timeslot damage notification to an overhead frame to be sent to the second FlexE device; the first FlexE device receives a second client calendar from the second FlexE device; and the first FlexE device receives, using the second client calendar, the data from the second FlexE device.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: September 7, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ke Zhang, Wei Xue
  • Patent number: 11108849
    Abstract: Global Internet of things (IoT) quality of service (QoS) is provided through self-forming, self-healing, and/or collaborative edge IoT gateways. Moreover, global IoT services are provided by logically extending cellular networks with roaming partners to backhaul, track, and/or manage the globally deployed edge IoT gateways. In one aspect, real-time QoS and/or monitoring capabilities for the global IoT services can be provided through a communication between the edge IoT gateways and an edge gateway controller deployed within a cloud. The edge IoT gateways form a structured mesh network to coordinate workload execution under control of the edge gateway controller, which can facilitate a highly efficient QoS and/or SLA management for mobile IoT sensors, to provide a secure monitoring and/or diagnostic capability for the global IoT services.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: August 31, 2021
    Assignees: AT&T INTELLECTUAL PROPERTY I, L.P., AT&T INTELLECTUAL PROPERTY II, L.P.
    Inventors: Mostafa Tofighbakhsh, Vinay Kundaje
  • Patent number: 11088928
    Abstract: In one embodiment, a method is provided service aware conditional path monitoring. The method includes determining, for a network that includes a plurality of nodes, which particular nodes of the plurality of nodes forward traffic associated with a service. The method involves identifying relevant forwarding instructions within the particular nodes that are used to forward traffic for the service. The method further includes configuring the particular nodes to perform monitoring of traffic with a higher priority given to the relevant forwarding instructions than other forwarding instructions on the particular nodes. Monitoring results are obtained from the monitoring of traffic on the particular nodes on the relevant forwarding instructions. The monitoring results are analyzed to determine assurance of the service in the network.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: August 10, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Carlos M. Pignataro, Benoit Claise, Nagendra Kumar Nainar
  • Patent number: 11063684
    Abstract: An optical transmission apparatus includes a first transmitter configured to output an optical signal having a wavelength belonging to a first wavelength band, a switch configured to output the optical signal outputted to the first transmitter toward a first transmission line or a second transmission line, a wavelength converter configured to convert the optical signal outputted from the switch toward the first transmission line into an optical signal having a wavelength belonging to a second wavelength band other than the first wavelength band, a second transmitter configured to output an optical signal having a wavelength belonging to the first wavelength band, and a first multiplexer configured to multiplex the optical signal outputted from the first wavelength converter and the optical signal outputted from the second transmitter, and output a multiplexed optical signal to the first transmission line.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: July 13, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Ryo Karube, Tomoaki Takeyama, Shinichirou Muro, Yoshio Shimano
  • Patent number: 11064398
    Abstract: Disclosed in the embodiments of the present disclosure are a resource processing method, a network-side device, a terminal, and a system. The method includes: a first network-side device acquiring association information concerning candidate networks for the terminal, the candidate networks at least comprising a second network, the terminal being switched from a third network to a first network, the first network-side device being applied to the first network; and the first network-side device releasing, according to the association information of the candidate networks, a switching preparation resource of the second network, the switching preparation resource of the second network being used for the switching of the terminal from the third network to the second network.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: July 13, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Jianhua Liu, Ning Yang
  • Patent number: 11057835
    Abstract: The invention proposes a scan control device, wherein in the scan operation a network detection is performed, the device comprising a request receiving means for receiving at least one request for providing scan information, and a scan control means for performing a scan operation independently from receiving the scan information requests. The invention also proposes a corresponding method and a computer program product.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: July 6, 2021
    Assignee: NOKIA TECHNOLOGIES OY
    Inventor: Mikko Jaakkola
  • Patent number: 11054449
    Abstract: A method and a device for determining transmission power in a multi-antenna communication system are provided. The method for determining transmission power includes calculating the power consumption of a transmission device, calculating the capacity of the transmission device, and determining transmission power for maximizing the energy efficiency of the transmission device by using the power consumption and the capacity thereof.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: July 6, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung Moo Lee, Jong Ho Bang, Jin Hyeock Choi, Byung Chang Kang
  • Patent number: 11050588
    Abstract: In one aspect, A computerized method of a gateway distributing routes learned through routing protocols (RP) into a Border Gateway Protocol (BGP) includes the step of providing a first gateway that receives a route over a routing protocol. The method includes the step of with the first gateway, redistributing the route to one or more peer routers as a BGP route based on one or more specified criteria. The method includes the step of setting a gateway precedence based on the redistribution of the route to the one or more peer routers as the BGP route. The method includes the step of, based on the gateway precedence, setting a second gateway to automatically redistribute the route with different priorities to influence steering of traffic to a preferred gateway.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: June 29, 2021
    Assignee: NICIRA, INC.
    Inventors: Ajit Ramachandra Mayya, Parag Pritam Thakore, Stephen Craig Connors, Steven Michael Woo, Sunil Mukundan, Thomas Harold Speeter, Vipin Kumar
  • Patent number: 11050675
    Abstract: A network system provides architecture for transmitting data across low-bandwidth links via user datagram protocol (UDP) via a scheduler that schedules, prioritizes, and collaborates data for transmission. The schedule coordinates low priority data and high priority data that may interrupt the low priority data in response to preset rules programmed into an automatic decision module. The automatic decision module may also include variable rules that can vary in response to machine learned information occurring or incoming to the system in situ.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: June 29, 2021
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Michael W. Holm, Michael A. Jeamel, Erik Visnyak
  • Patent number: 11030063
    Abstract: A system and method for maintaining data integrity during data transformation operations. The system and method include obtaining a message from a set of queues, obtaining, from a first data store, a data object indicated by the message, and generating, at a first host, a set of error detection codes corresponding to a transformation of the data object according to a transformation scheme. The system and method further include, transforming, at a second host different from the first host, the data object according to the transformation scheme into the transformation of the data object, verifying the transformation against the set of error detection codes, and storing the transformation in a second data store.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: June 8, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: George Shipilov, Kerry Quintin Lee, Matthew James Eddey
  • Patent number: 11012369
    Abstract: An aggregated switch path optimization system includes first and second switch devices. An aggregated third switch device is coupled to the first switch device, the second switch device, and an aggregated fourth switch device. The aggregated third switch device forwards those packets from the first switch device via one of: an ICL to the aggregated fourth switch device, and a link to the second switch device. The aggregated third switch device then monitors a usage of the ICL and the availability of the link to the second switch device. In response to the usage of the ICL exceeding a threshold usage level, or an unavailability of the link to the second switch device, the aggregated third switch device transmits a packet redirection message to the first switch device that causes it to redirect packets away from the aggregated third switch device and towards the aggregated fourth switch device.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: May 18, 2021
    Assignee: Dell Products L.P.
    Inventors: Karthi Kaliyamoorthy, Senthil Nathan Muthukaruppan
  • Patent number: 11003522
    Abstract: An apparatus for detecting a degraded grid controller includes a status module that collects for individual grid controllers in a grid array a status update comprising a keepalive status and a connectivity indicator and/or a pending transaction indicator between pairs of the individual grid controllers. The apparatus also includes a responsiveness module that determines a responsiveness indicator for a particular grid controller based on the keepalive status and the connectivity indicator and/or the pending transaction indicator of the particular grid controller. The apparatus further includes a configuration module that removes the particular grid controller of the individual grid controllers from use in the grid array in response to the responsiveness module determining that the responsiveness indicator of the particular grid controller indicates that the particular grid controller is degraded.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: May 11, 2021
    Assignee: International Business Machines Corporation
    Inventors: Constantine Gavrilov, Osnat Shasha, Ilya Tkachevsky, Shlomit Neufeld
  • Patent number: 10992574
    Abstract: The present invention provides a packet forwarding method and device. The method comprises: a first node receiving a packet for forwarding, wherein a destination address of the packet is a second node; the first node identifying, from topologies generated in advance, a target topology corresponding to the packet, wherein the topologies generated in advance comprise a first topology and a second topology generated according to an MRT algorithm, and a third topology obtained according to an SPF algorithm, wherein the first topology, the second topology and the third topology are different from one another; and the first node identifying, from the target topology, a next hop node for forwarding to the second node, and forwarding the packet to the next hop node. The present invention achieves an object of combining a segmented routing network and an MRT function.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: April 27, 2021
    Assignee: ZTE CORPORATION
    Inventors: Shaofu Peng, Huilai Wang, Jinsong Sun
  • Patent number: 10979137
    Abstract: Systems and methods for controlling satellites are provided. In one example embodiment, a computing system can obtain a request for image data. The request can be associated with a priority for acquiring the image data. The computing system can determine an availability of a plurality of satellites to acquire the image data based at least in part on the request. The computing system can select from among a plurality of communication pathways to transmit an image acquisition command to a satellite based at least in part on the request priority. The plurality of communication pathways can include a communication pathway via which the image acquisition command is indirectly communicated to the satellite via a geostationary satellite. The computing system can send the image acquisition command to the selected satellite via the selected communication pathway.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: April 13, 2021
    Assignee: Planet Labs, Inc.
    Inventors: Henrique Miranda, Kiruthika Devaraj
  • Patent number: 10972381
    Abstract: In one embodiment, in-band operations data (e.g., In-situ Operations, Administration, Maintenance and/or other operations data) is added to Seamless Bidirectional Forwarding (S-BFD) packets. In one embodiment, a S-BFD packet received by a node includes a BFD discriminator and operations data. Reactive processing is identified based on the BFD discriminator. The S-BFD packet and the operations data (e.g., in an operations data field in a header of the received S-BFD packet, in an IOAM Type-Length-Value (TLV), etc.) is processed according to the identified reactive function. Examples of these reactive actions include, but are not limited to, determining a result based on processing of said particular operations data by the local node or a remote analytics server, and sending a response packet including unprocessed and/or a result of the processed operations data (e.g., performance, loss, jitter, an indication of compliance with a service level agreement, and/or another data measurement or result).
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: April 6, 2021
    Assignee: Cisco Technology, Inc.
    Inventors: Carlos M. Pignataro, Nagendra Kumar Nainar, Reshad Rahman, Frank Brockners, Shwetha Subray Bhandari
  • Patent number: 10972380
    Abstract: A method involves setting a link aggregation control protocol (LACP) link state for all links in a first service node to STANDBY to put at least one multiplexer in the first service node in a WAITING state to disable frame collection at the redundant service node and setting the LACP link state for all links in a second service node to SELECTED to put at least one multiplexer in the second service node in a COLLECTING/DISTRIBUTING state to enable frame collection at the primary service node.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: April 6, 2021
    Assignee: Versa Networks, Inc.
    Inventors: Sridhar Iyer, Apurva Mehta, Dave Traugott, Suraj Chandrasekaran
  • Patent number: 10972923
    Abstract: An information processing method and device are provided. The information processing method includes: obtaining link state information of a target link; determining whether link exception exists in the target link or not according to the link state information; and when the link exception is determined to exist in the target link, transmitting link exception indication information to a primary node, wherein the link exception indication information is used to indicate to the primary node that the link exception exists in the target link.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: April 6, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Jiamin Liu, Pierre Bertrand
  • Patent number: 10965593
    Abstract: Apparatuses and methods are provided in which a CE protocol communication session is established, at a first provider edge network device (PE), for customer equipment device (CE) multi-homed to the first PE and one or more second PEs. The first PE is an owner of the CE protocol communication session. The first PE signals to the one or more second PEs an ownership message indicating that the first PE is the owner of the CE protocol communication session. The ownership message includes parameters that enable one or more second PEs to install in their respective forwarding tables a redirect policy to instruct the respective PE to forward packets of this session to the first PE via an overlay segment. The first PE receives the packets of the session via the overlay segment based on the ownership message.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: March 30, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Dhananjaya Rao, Ali Sajassi
  • Patent number: 10965587
    Abstract: Ways of sending data over a network over a single path or over multiple parallel paths on an as-needed basis depending upon network conditions, and/or other factors, are described. For example, if a computing device detects sufficient jitter and/or latency at one or more network interfaces, the data may be sent over two or more communication paths using two or more network interfaces.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: March 30, 2021
    Assignee: Comcast Cable Communications, LLC
    Inventor: Ross Gilson
  • Patent number: 10951517
    Abstract: Data Center Bridge (DCB)-based path selection methods and systems reduce packet loss in a network system comprising a Link Aggregation Group (LAG) topology. In embodiments, once traffic received at a LAG node and identified as DCB traffic, links whose DCB status are identified as “up” are assigned to a LAG sub-trunk that may be used to forward the DCB traffic on the LAG trunk, while non-DCB traffic is forwarded to any member of the LAG, irrespective of DCB status. In addition, DCB traffic received from a LAG peer node, which sends traffic on an inter-node link (INL) when no DCB-enabled links to a downstream device are present, is identified as DCB traffic and forwarded on a LAG sub-trunk that comprises DCB-enabled links. An egress mask that indicates to not forward the traffic received at the LAG node on the INL may be overridden, such that DCB traffic may be forwarded.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: March 16, 2021
    Assignee: DELL PRODUCTS L.P.
    Inventors: Saravanan Obulisami, Ramesh Kumar Subbiah, Vibin Varghese
  • Patent number: 10951529
    Abstract: Systems and methods for dynamic service-based load balancing in an SD-WAN are provided. According to one embodiment, a routing protocol daemon of an SDN controller within a spoke network receives a dynamically assigned subnet and associated attributes for a client device newly registered with the hub network. The routing protocol daemon tags the subnet with a route tag using a route map based on the received attributes meeting network administrator-defined match criteria for corresponding attributes associated with the route tag in the route map. The tagged subnet is communicated to an SD-WAN daemon of the SDN controller, which translates an SD-WAN service rule defined with reference to the route tag to an SD-WAN service rule defined with reference to the subnet. A load balancer associated with the spoke network is caused to perform load balancing of incoming network traffic in accordance with the translated SD-WAN service rule.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: March 16, 2021
    Assignee: Fortinet, Inc.
    Inventors: Shangwei Duan, Xin Gu
  • Patent number: 10944693
    Abstract: A system is described that includes an integrated circuit chip having a network-on-chip. The network-on-chip includes multiple routers arranged in a topology and a separate communication link coupled between each router and each of one or more neighboring routers of that router among the multiple routers in the topology. The integrated circuit chip also includes multiple nodes, each node coupled to a router of the multiple routers. When operating, a given router of the multiple routers keeps a record of operating states of some or all of the multiple routers and corresponding communication links. The given router then routes flits to destination nodes via one or more other routers of the multiple routers based at least in part on the operating states of the some or all of the multiple routers and the corresponding communication links.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: March 9, 2021
    Assignee: ADVANCED MICRO DEVICES, INC.
    Inventors: Srikant Bharadwaj, Shomit N. Das
  • Patent number: 10944464
    Abstract: Example methods and apparatus for switching an analog beam are described. One example method includes transmitting a data channel by a terminal by using a first analog beam. The terminal determines that a second analog beam is a target beam to be switched to. The terminal transmits a related signal of the data channel by using the second analog beam. The terminal transmits a data channel by using the first analog beam. The terminal switches from the first analog beam to the second analog beam to transmit the data channel in response to determining that a specified condition is met.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: March 9, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yuqi Huang, Youtuan Zhu
  • Patent number: 10945225
    Abstract: A user apparatus in a radio communication system including a base station and the user apparatus, including: a reception unit configured to receive a plurality of predetermined signals transmitted from the base station by a plurality of beams; and a transmission unit configured to transmit a preamble using a resource corresponding to at least one beam of the plurality of beams, wherein the reception unit measures a reception quality for each of the plurality of beams, and the transmission unit transmits the preamble using a resource corresponding to a beam of a reception quality that satisfies a predetermined condition.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: March 9, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Tomoya Ohara, Hiroki Harada
  • Patent number: 10944831
    Abstract: A method and a device for setting priority of data transmission are provided. A terminal, which is set to transmit low priority data to a network, transmits a connection request to the network in order to transmit normal-priority data, and receives and stores priority information on data transmission from the network.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: March 9, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Han Na Lim, Song Yean Cho, Young Kyo Baek, Sang Soo Jeong
  • Patent number: 10938732
    Abstract: Various systems and methods take advantage of physical interfaces that are a part of Link Aggregation Group (LAG) to avoid traffic drops when disruptive configurations are applied to a port of a switch or router. In embodiments, in networking topologies using (SAN)-based traffic, where zero losses are expected, lossless deployment may be accomplished by using LACP to proactively intervene and redirect traffic flow in both ingress and egress directions of a to-be-configured port, e.g., to other ports of the LAG.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: March 2, 2021
    Assignee: DELL PRODUCTS L.P.
    Inventors: Sudharsan Dhamal Gopalarathnam, Anbalagan Natchimuthu