Bypass An Inoperative Channel Patents (Class 370/225)
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Patent number: 11838147Abstract: Techniques are disclosed for disseminating network service-specific mapping information across administrative domains. In one example, a network device receives an indication of a route target and one or more underlay tunnels configured to support a service route. The service route is configured to transport network traffic associated with a first network service of a plurality of network services. The network device defines, based on the indication, a first transport class of a plurality of transport classes. The network device receives a service route for the first network service and stores a correspondence between the service route and the first transport class. The network device receives network traffic associated with the first network service and forwards, based on the correspondence, the network traffic along the underlay tunnels specified by the first transport class.Type: GrantFiled: March 31, 2020Date of Patent: December 5, 2023Assignee: Juniper Networks, Inc.Inventors: Kaliraj Vairavakkalai, Natrajan Venkataraman, Balaji Rajagopalan, Vasudevan Navaneetha Krishnan
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Patent number: 11816502Abstract: A computing device, including a processor configured to perform data transfer scheduling for a hardware accelerator including a plurality of processing areas. Performing data transfer scheduling may include receiving a plurality of data transfer instructions that encode requests to transfer data to respective processing areas. Performing data transfer scheduling may further include identifying a plurality of transfer path conflicts between the data transfer instructions. Performing data transfer scheduling may further include sorting the data transfer instructions into a plurality of transfer instruction subsets. Within each transfer instruction subset, none of the data transfer instructions have transfer path conflicts. For each transfer instruction subset, performing data transfer scheduling may further include conveying the data transfer instructions included in that transfer instruction subset to the hardware accelerator.Type: GrantFiled: February 23, 2023Date of Patent: November 14, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Monica Man Kay Tang, Ruihua Peng, Zhuo Ruan
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Patent number: 11784919Abstract: A method for sending a BIERv6 (bit index explicit replication version 6) packet includes: determining, by a first network device, that an active next-hop device for reaching a second network device is faulty, where the first network device belongs to a first area in a BIER domain, the second network device and the active next-hop device belong to a second area in the BIER domain, the active next-hop device is a border device in the second area and is configured to connect to the first area, and the first area and the second area have different protocols; and sending, by the first network device, a BIERv6 packet to a backup next-hop device for reaching the second network device, where the backup next-hop device is a border device in the second area and is configured to connect to the first area.Type: GrantFiled: October 29, 2021Date of Patent: October 10, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Lingshuai Li, Jingrong Xie
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Patent number: 11765159Abstract: Embodiments are directed to connection revocation in overlay networks. An overlay network may be employed to provide secure tunnels between clients and resources. In response to a privilege evaluation event, performing further actions, including: determining sessions associated with the secure tunnels; determining users and a portion of the resources based on the sessions such that each determined user and each determined resource are associated with a same session; comparing privilege information associated with each determined user with privilege requirements associated with each determined resource. In response to determining one or more mismatches of the privilege information and the privilege requirements based on the comparison, performing further actions, including: determining revocable sessions based on the mismatches; providing revoke messages to agents such that the agents close connections associated with the revocable sessions.Type: GrantFiled: September 28, 2022Date of Patent: September 19, 2023Assignee: strongDM, Inc.Inventors: Britt Vandermast Crawford, Philip D. Hassey, Alexander Chidi Okafor
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Patent number: 11757704Abstract: A method for handling a radio link failure (RLF) is described. The method includes sending, by a terminal device, duplicated data packets to a network device on a first carrier and a second carrier. Thereafter, upon determining that an RLF occurred on one of the first carrier and the second carrier, the terminal device sends RLF indication information to the network device. The RLF indication information indicates that the RLF event occurs on the first carrier, the second carrier, or the first carrier and the second carrier.Type: GrantFiled: December 16, 2019Date of Patent: September 12, 2023Assignee: Huawei Technologies Co., Ltd.Inventors: Bin Xu, Bingzhao Li, Li Chai, Zhenzhen Cao
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Patent number: 11750411Abstract: Embodiments include methods for a gateway device to selectively forward messages in a wireless mesh network. Such methods include receiving, over one of a plurality of network interfaces of the gateway device, a message published to a group address or a virtual address and retrieving, from a database accessible by the gateway device, unicast addresses of all communication devices identified by the group address or the virtual address. Such methods include, based on determining that all communication devices addressed by the retrieved unicast addresses are serviced by the gateway device, sending the received message on all network interfaces that correspond to the communication devices addressed by the retrieved unicast addresses; and based on determining that not all communication devices addressed by the retrieved unicast addresses are serviced by the gateway device, sending the received message on all network interfaces except for the network interface over which the message was received.Type: GrantFiled: December 12, 2022Date of Patent: September 5, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Per Skillermark, Per Elmdahl, Thomas Rimhagen
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Patent number: 11734138Abstract: Embodiments of the present disclosure provide a hot standby method, apparatus, and system. The method includes: saving, by an active device, first user information of the active device into a local cache module of the active device and sending, by the active device, the first user information to a remote cache module of a first standby device based on preset correlation information. In response to detecting that the active device becomes faulty, the first standby device obtains the first user information from the remote cache module of the first standby device and restores the first user information.Type: GrantFiled: July 2, 2022Date of Patent: August 22, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Dayong Guo, Hongtao Guo
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Patent number: 11689386Abstract: A machine automation system for controlling and operating an automated machine. The system includes a controller and sensor bus including a central processing core and a multi-medium transmission intranet for implementing a dynamic burst to broadcast transmission scheme where messages are burst from nodes to the central processing core and broadcast from the central processing core to all of the nodes.Type: GrantFiled: March 4, 2021Date of Patent: June 27, 2023Assignee: Vulcan Technologies International Inc.Inventor: Eugene Lee
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Patent number: 11671323Abstract: Configuration of a communication network can include obtaining a graph representing the communication network, generation of a the preplan assignment for the communication network, and configuration of the communication network according to the preplan assignment. The graph can be associated with shared risk link groups (SRLGs) and demands. Generation of the preplan assignment can include obtaining a headend assignment between each one of the demands and a headend vertex on the graph. Generation of the preplan assignment can further include obtaining a SRLG-distinguishing assignment between each headend and a corresponding reporting edge set. The reporting edge set for a headend can include sufficient edges to distinguish among SRLGs affecting the headend. Generation of the preplan assignment can further include obtaining a notification path assignment between each headend and each reporting edge in the corresponding reporting edge set for the headend.Type: GrantFiled: October 20, 2022Date of Patent: June 6, 2023Assignee: ECI Telecom Ltd.Inventors: Hayim Porat, Shirel Ezra, Efraim Gelman
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Patent number: 11659389Abstract: A network may include an International Serials Data System (ISDS) that is configured to register and determine an identity of a receiving or originating user equipment (UE) that has a home network that operates using a different format or standard than the current network. The ISDS may be configured to generate transmissions on behalf of the UE for registration and identification for outgoing and incoming voice or text messages using the format of both networks.Type: GrantFiled: April 28, 2021Date of Patent: May 23, 2023Assignee: T-Mobile USA, Inc.Inventors: Nassereddine Sabeur, Joel Arends, Saqib Badar, Sabuhi Kiran Zaifuddin, Raymond Thomas Ball, Shujaur Rehman Mufti
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Patent number: 11593287Abstract: A port configuration migration system includes a primary I/O module connected to a server device via a secondary I/O module. A fabric manager system maps a virtual interface to a first downlink port on the primary I/O module that is connected to the secondary I/O module, with the virtual interface providing a virtual direct connection to the server device. The fabric manager system then configures the virtual interface with communication configuration information for the server device such that communications received via the first downlink port are transmitted using the virtual interface. The fabric manager system then receives a discovery communication from the server device via a second downlink port on the primary I/O module that is connected to the secondary I/O module, and remaps the virtual interface to the second downlink port such that communications received via the second downlink port are transmitted using the virtual interface.Type: GrantFiled: October 20, 2021Date of Patent: February 28, 2023Assignee: Dell Products L.P.Inventors: Pawan Kumar Singal, Balaji Rajagopalan, Ning Zhuang, Joyas Joseph, Joseph Lasalle White
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Patent number: 11593164Abstract: A computing device, including a processor configured to perform data transfer scheduling for a hardware accelerator including a plurality of processing areas. Performing data transfer scheduling may include receiving a plurality of data transfer instructions that encode requests to transfer data to respective processing areas. Performing data transfer scheduling may further include identifying a plurality of transfer path conflicts between the data transfer instructions. Performing data transfer scheduling may further include sorting the data transfer instructions into a plurality of transfer instruction subsets. Within each transfer instruction subset, none of the data transfer instructions have transfer path conflicts. For each transfer instruction subset, performing data transfer scheduling may further include conveying the data transfer instructions included in that transfer instruction subset to the hardware accelerator.Type: GrantFiled: March 3, 2021Date of Patent: February 28, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Monica Man Kay Tang, Ruihua Peng, Zhuo Ruan
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Patent number: 11592798Abstract: A system (100) for controlling a plurality of lines (10), with each line (10) being at least one of a production line and a distribution line, comprises: a first subsystem (30), hereinafter referred to as “master room subsystem”, comprising a first control device (40) hosting an OPC UA server (45); and, for each line (10), a second subsystem (50), hereinafter referred to as “line control subsystem”, comprising: (a) a second control device (60) on which an operating system is running, the second control device (60) hosting an OPC UA client (65); (b) at least one field device (70); and (c) a connection device (80) arranged for allowing communication between the field device(s) (70) and the second control device (60). The field device(s) (70) is connected to the second control device (60) through a point-to-point digital communication interface, the second control device (60) having one port per field device (70).Type: GrantFiled: November 16, 2017Date of Patent: February 28, 2023Assignee: SICPA HOLDING SAInventors: Luis Felipe De Andrade Chalar Da Silva, Diego De Carvalho Costa, Vitor Dias Pinheiro, Leonardo Rodrigo Daniel Mattos Alberto Dos Santos
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Patent number: 11582674Abstract: A communication device is provided that makes a single or a plurality of functions desired by a service user act on a packet desired by the service user in a service for transferring a packet in a network. A communication device is provided that includes a communication unit that communicates with another node and a control unit that controls the communication by the communication unit, in which the control unit generates path information with a target node, and in the path information with the target node, at least information regarding communication with at least a single relay node that exists between the communication device and the target node, information regarding a function to be performed by the relay node, and content of processing according to the function execution result by the relay node are written.Type: GrantFiled: March 20, 2019Date of Patent: February 14, 2023Assignee: SONY CORPORATIONInventors: Ryota Kimura, Hiroaki Takano, Hirofumi Kasai, Ryo Sawai, Fumio Teraoka
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Patent number: 11558239Abstract: Methods, systems, and computer-readable media are disclosed herein that monitor and improve network performance and reliability of a plurality of devices and nodes. In aspects, alert types are categorized based on the role, model, and operating system of a device or node within the network for which the alert was generated. A command set that is responsive to the alert and that is specially configured for the role, model, and operating system of the device or node is automatically selected to address the alert. The command set can be executed against the device or node (or neighboring device/node) in order to investigate the cause or source of the alert. Based on the results returned by the command set's execution, remediation actions can be selected and implemented to improve the technological performance (e.g., memory, CPU, connectivity) of the device or node in the network.Type: GrantFiled: August 31, 2021Date of Patent: January 17, 2023Assignee: CERNER INNOVATION, INC.Inventors: Kotresh Kori, Pavan Kumar R P, Jim S. Avazpour, Jason Miller, Volodymyr Polishchuk, Bharath B K, Devesh Singh, Vinay Bhat
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Patent number: 11539421Abstract: Provided is a beam recovery method in a wireless communication system. A beam recovery method performed by a user terminal (UE) may include receiving a beam reference signal (BRS) used for beam management from an enhanced Node B (eNB), when a beam failure event is detected, transmitting a control signal for a beam failure recovery request to the eNB; and, when beam reporting is triggered, reporting a beam measurement result to the eNB in a specific resource.Type: GrantFiled: August 21, 2017Date of Patent: December 27, 2022Assignee: LG Electronics Inc.Inventors: Jiwon Kang, Minki Ahn, Kilbom Lee
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Patent number: 11539576Abstract: Various techniques for dynamic path selection and data flow forwarding are disclosed. For example, various systems, processes, and computer program products for dynamic path selection and data flow forwarding are disclosed for providing dynamic path selection and data flow forwarding that can facilitate preserving/enforcing symmetry in data flows as disclosed with respect to various embodiments.Type: GrantFiled: April 29, 2022Date of Patent: December 27, 2022Assignee: Palo Alto Networks, Inc.Inventors: Kumar Ramachandran, Venkataraman Anand, Navneet Yadav, Arivu Ramasamy, Aaron Edwards, Gopal Reddy
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Patent number: 11539575Abstract: A method and an apparatus for beam failure recovery in a communication system. The method for beam failure recovery includes the steps of: searching for a plurality of candidate beams when a beam failure is detected; transmitting a beam failure recovery request signal to a base station by using beam #1 of the plurality of candidate beams; receiving a beam failure recovery response signal in response to the beam failure recovery request signal via beam #1 from the base station; and transmitting an SR requesting a resource for transmission of multi-beam setting information to the base station, where the multi-beam setting information includes indexes of one or more beams excluding beam #1 of the plurality of candidate beams.Type: GrantFiled: February 14, 2019Date of Patent: December 27, 2022Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Min Hyun Kim, Sung Hyun Moon, Jung Hoon Lee, Kyoung Seok Lee
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Patent number: 11523280Abstract: In response to a radio link failure between given user equipment and a source access node of a communication system during a data transfer operation over a control plane, a method is provided for recovering the radio link for the given user equipment through a target access node of the communication system. The radio link recovery is enabled via a mobility management node of the communication system using a non-access stratum security context previously established between the given user equipment and the mobility management node.Type: GrantFiled: November 20, 2020Date of Patent: December 6, 2022Assignee: NOKIA TECHNOLOGIES OYInventor: Suresh P. Nair
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Patent number: 11522923Abstract: A method for enabling a calling User Equipment, UE, to retry a Session Initiation Protocol, SIP, call attempt to a called UE, over a Circuit Switched domain, in a telecommunication network, wherein said called UE has a SIP session established towards said telecommunication network, wherein said method comprises the steps of receiving, by a Proxy Call Session Control Function, P-CSCF, node, an indication that a signalling bearer between said called UE and said telecommunication network is released, wherein said signalling bearer is associated with said SIP session, transmitting, by said P-CSCF node, to a Serving Call Session Control Function, S-CSCF, node triggered by said received indication, a subscribe message for informing said S-CSCF node that said P-CSCF unsubscribes to registration events pertaining to said called UE due to the released signalling bearer such that said S-CSCF node is able to initiate a CS retry when said telecommunication network receives a SIP call attempt from said calling UE to saidType: GrantFiled: November 13, 2018Date of Patent: December 6, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Beatriz Maroto Gil, Juan De Dios Del Moral Moya, Margarita Gayo Arnaldo, Ignacio Saez Matallana, Emiliano Merino Vazquez
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Patent number: 11503111Abstract: 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: GrantFiled: July 28, 2021Date of Patent: November 15, 2022Assignees: AT&T INTELLECTUAL PROPERTY I, L.P., AT&T INTELLECTUAL PROPERTY II, L.P.Inventors: Mostafa Tofighbakhsh, Vinay Kundaje
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Patent number: 11496199Abstract: Aspects of the disclosure provide a method of beam failure handling. The method can include performing beam quality measurement of one or more beams transmitted from a base station (BS) at a user equipment (UE) in a beamformed wireless communication system, determining a beam failure occurs based on the beam quality measurement, and performing a beam recovery process that includes at least one of a contention-free beam recovery process or a contention-based beam recovery process. The one or more beams are used for transmitting physical downlink control channels (PDCCHs).Type: GrantFiled: May 3, 2018Date of Patent: November 8, 2022Assignee: MEDIATEK SINGAPORE PTE. LTD.Inventors: Yuanyuan Zhang, Chia-Hao Yu, Yu-Syuan Jheng
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Patent number: 11476917Abstract: A method, system, network node and wireless device for beam selection priority in a wireless communication system are disclosed. According to one aspect of the disclosure, a wireless device is provided. The wireless device is provided with different beam indications for reception of at least a first signal and a second signal. The wireless device includes processing circuitry configured to receive the first signal of a first signal type on a beam indicated by one of the beam indications, the first signal type having a higher priority than a second signal type of the second signal.Type: GrantFiled: January 21, 2019Date of Patent: October 18, 2022Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Claes Tidestav, Mattias Frenne
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Patent number: 11469940Abstract: Certain aspects of the present disclosure provide various techniques for beam recovery. For example, a method for wireless communication by a network entity may include providing configuration information to a user equipment (UE) indicating a sequence of target beams and timing information to try each target beam in the sequence, and attempting to communicate with the UE using one or more of the target beams according to the timing information, in response to a beam failure.Type: GrantFiled: December 20, 2018Date of Patent: October 11, 2022Assignee: QUALCOMM IncorporatedInventors: Sumeeth Nagaraja, Tao Luo
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Patent number: 11444667Abstract: The present disclosure relates to methods and devices for wireless communication including an apparatus, e.g., a UE and/or base station. The apparatus can determine a first orthogonal matrix and a second orthogonal matrix, the first orthogonal matrix including a size of M×N1 with M×N1 rows and M×N1 columns, the second orthogonal matrix including a size of M×N2 with M×N2 rows and M×N2 columns. The apparatus can also determine a first codebook based on the first orthogonal matrix and a second codebook based on the second orthogonal matrix, the first codebook and the second codebook including a plurality of codepoints. Also, the apparatus can transmit a first signal and a second signal, the first signal including a first codepoint of the plurality of codepoints in the first codebook, the second signal including a second codepoint of the plurality of codepoints in the second codebook.Type: GrantFiled: April 20, 2021Date of Patent: September 13, 2022Assignee: QUALCOMM IncorporatedInventors: Yi Huang, Wei Yang, Peter Gaal, Hwan Joon Kwon, Krishna Kiran Mukkavilli, Tingfang Ji, Wanshi Chen, Juan Montojo
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Patent number: 11438216Abstract: According to some aspects, disclosed methods and systems may include receiving a message indicating a loss of connectivity to a network of a distressed device associated with a location. The method may include connecting, via one or more network devices, to the distressed device associated with the location. The method may also include transmitting information between the distressed device and the network.Type: GrantFiled: October 16, 2020Date of Patent: September 6, 2022Assignee: Comcast Cable Communications, LLCInventors: Michael J. O'Reirdan, Phillip A. Sanderson
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Patent number: 11438193Abstract: Techniques described herein provide for expediting routing convergence in EVPN with multihomed ethernet segment when one of the redundant devices loses connection to the ethernet segment. When a first redundant device receives EVPN auto discovery (AD) route advertising an ethernet segment from a second redundant device, it creates an entry for a forwarding table. The entry has, for an advertised MAC address, a local identifier of the ethernet segment (marked as active next hop) and the identifier of the second network device (marked as backup next hop). When a packet for that MAC address is received, the first redundant device routes the data using data from the entry. In particular, the first redundant device uses the local identifier of the ethernet segment as next hop when the ethernet segment link is active; and uses the identifier of the second network device as next hop when the ethernet segment is down.Type: GrantFiled: January 28, 2020Date of Patent: September 6, 2022Assignee: ARISTA NETWORKS, INC.Inventors: Amit Dattatray Ranpise, Rajesh Kumar Semwal
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Patent number: 11438818Abstract: The present patent application discloses a handover method, a base station, and a terminal device. The handover method includes: sending, by a source base station, a handover request to a target base station, where the handover request includes information about a first service of a terminal device; receiving, by the source base station, a handover response sent by the target base station, where if the first service is supported by the target base station, the handover response includes information about a handover instruction for the first service, and the handover instruction is used to instruct the terminal device to hand over the first service from the source base station to the target base station; and sending, by the source base station, a handover response to the terminal device.Type: GrantFiled: November 5, 2020Date of Patent: September 6, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Yinghao Jin, Hong Li, Jinfang Zhang, Wei Zhang
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Patent number: 11431569Abstract: A communication apparatus comprises a rollback control unit to create a second process to roll back a currently working first process thereto; a storage to store states shared by the first and the second processes, the second process taking over a state(s) stored in the storage unit; a buffer; and a timing control unit that controls of timing of rollback. The rollback control unit starts event buffering to store in the buffer all of an event(s) received during when the first process is processing and destined to the first process, and upon completion of the processing of the event by the first process, the rollback control unit performs switching of a working process from the first process to the second process, sends the event(s) stored therein from start of the event buffering to the second process and stop event buffering.Type: GrantFiled: July 21, 2016Date of Patent: August 30, 2022Assignee: NEC CORPORATIONInventors: Takayuki Sasaki, Daniele Enrico Asoni, Adrian Perrig
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Patent number: 11431556Abstract: The invention discloses a cross-layer network fault recovery system and method based on configuration migration.Type: GrantFiled: March 4, 2021Date of Patent: August 30, 2022Assignees: Beijing University of Posts and Telecommunications, State Grid Liaoning Power Co., Ltd. Dalian Power Suoply CompanyInventors: Rentao Gu, Meng Lian, Lin Liu, Jingzhao Luan, Baoli Wang, Yuefeng Ji
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Patent number: 11388089Abstract: This application provides a downstream packet sending method, a downstream packet forwarding method, a downstream packet sending apparatus, and a downstream packet forwarding apparatus. The downstream packet sending method in this application includes: configuring a downstream forwarding path of a downstream packet for a terminal device; generating a source MAC address based on the downstream forwarding path, where the source MAC address is used to indicate the downstream forwarding path; and sending the downstream packet to a forwarding switch, where the downstream packet includes the source MAC address. This application can reduce costs, improve efficiency, and simplify network traffic.Type: GrantFiled: August 12, 2020Date of Patent: July 12, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Li Shen, Yinliang Hu, Peng Chen, Duoliang Fan, Jingmin Zhang
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Patent number: 11382161Abstract: An access control method and a user equipment are provided in the present invention. The access control method in a user equipment includes: determining, according to a status of the user equipment, a corresponding access control parameter to execute access control; if a result of the access control is access barring, then starting different access barring timers corresponding to different user equipment states, or starting the same access barring timer in the different user equipment states; and determining a duration of the started access barring timer according to the corresponding access control parameter.Type: GrantFiled: March 28, 2019Date of Patent: July 5, 2022Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company LimitedInventors: Chongming Zhang, Hidekazu Tsuboi, Chao Luo, Renmao Liu
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Patent number: 11381525Abstract: An apparatus includes a first port coupled to a first apparatus through a ring line, a second port coupled to a second apparatus through a second line, the second apparatus disposed external to the ring line, the second line configured redundantly with a first line between the first apparatus and the second apparatus, a third port coupled to the first apparatus through a control line for a control signal concerning the first line, and circuitry that detects a fault in the control line, wherein the circuitry detects a fault in the second line, switches the second line from an active line to a standby line in accordance with the detection of the fault in the second line, and while the fault in the control line is detected, shuts down the first port in accordance with the detection of the fault in the second line.Type: GrantFiled: December 10, 2019Date of Patent: July 5, 2022Assignee: FUJITSU LIMITEDInventors: Shogo Sawamura, Masayuki Ono, Masanori Kondo, Toshihide Tsuzuki
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Patent number: 11362942Abstract: In some cases, once Fast Reroute (FRR) has taken place (e.g., for MPLS protection), a further FRR is undesirable, and even detrimental. A mechanism to prevent a further FRR, once such a further FRR is determined to be potentially harmful, is described.Type: GrantFiled: January 31, 2020Date of Patent: June 14, 2022Assignee: Juniper Networks, Inc.Inventors: Kireeti Kompella, Wen Lin, Kevin Wang
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Patent number: 11329907Abstract: 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: GrantFiled: June 2, 2020Date of Patent: May 10, 2022Assignee: Cisco Technology, Inc., a California corporationInventors: Rishi Chhibber, Roshan Lal, Mankamana Prasad Mishra
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Patent number: 11323308Abstract: 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: GrantFiled: December 28, 2018Date of Patent: May 3, 2022Assignee: Juniper Networks, Inc.Inventors: Channasangamesh S Hugar, Babu Singarayan, Sharmila Koppula, Soumyodeep Joarder, Sudhin Jacob
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Patent number: 11323178Abstract: 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: GrantFiled: January 19, 2021Date of Patent: May 3, 2022Assignee: Charter Communications Operating, LLCInventors: Thomas Dudley, Ognian Mitev
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Patent number: 11310170Abstract: 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: GrantFiled: October 24, 2019Date of Patent: April 19, 2022Assignee: VMWARE, INC.Inventors: Israel Cidon, Prashanth Venugopal, Aran Bergman, Chen Dar, Alex Markuze, Eyal Zohar
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Patent number: 11303549Abstract: 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: GrantFiled: July 13, 2020Date of Patent: April 12, 2022Assignee: Juniper Networks, Inc.Inventors: Kapil Arora, Samson P. Ninan, Shraddha Hegde
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Patent number: 11296908Abstract: 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: GrantFiled: June 22, 2020Date of Patent: April 5, 2022Assignee: Juniper Networks, Inc.Inventors: Wen Lin, Pankaj Kumar Gupta, Babu Singarayan, Sharmila Koppula, Manish Gupta, Kapil Arora
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Patent number: 11290361Abstract: 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: GrantFiled: December 16, 2019Date of Patent: March 29, 2022Assignee: XILINX, INC.Inventors: Chengchen Hu, Ji Yang, Yan Zhang, Gordon J. Brebner, Siyi Qiao
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Patent number: 11283644Abstract: 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: GrantFiled: March 4, 2020Date of Patent: March 22, 2022Assignees: AT&T Intellectual Property I, L.P., AT&T Mobility II LLCInventors: Sheldon Meredith, Brandon Hilliard, Zachary Meredith
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Patent number: 11271775Abstract: 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: GrantFiled: June 29, 2018Date of Patent: March 8, 2022Assignee: Intel CorporationInventors: Donald Skidmore, Joshua Hay, Anjali Singhai Jain, Parthasarathy Sarangam
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Patent number: 11265938Abstract: 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: GrantFiled: November 27, 2019Date of Patent: March 1, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Serkan Ayaz, Daniel Medina, Prajwal Keshavamurthy, Markus Martin Dillinger
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Patent number: 11258632Abstract: 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: GrantFiled: March 6, 2020Date of Patent: February 22, 2022Assignee: Dell Products L.P.Inventors: Avinash Jayakumar, Vibin Varghese, Ramesh Kumar Subbiah
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Patent number: 11246016Abstract: 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: GrantFiled: February 14, 2020Date of Patent: February 8, 2022Assignee: NETGEAR, INC.Inventors: Joseph Amalan Arul Emmanuel, Peiman Amini
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Patent number: 11239932Abstract: 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: GrantFiled: December 21, 2018Date of Patent: February 1, 2022Assignee: Cisco Technology, Inc.Inventors: Raghunandan Annavajjala, Anand B. Agarwal, Onkar R. Deshpande, Christian Schmutzer
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Patent number: 11234289Abstract: 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: GrantFiled: September 27, 2017Date of Patent: January 25, 2022Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Gerardo Agni Medina Acosta, Mark Curran, Cecilia Eklöf, Nianshan Shi
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Patent number: 11218405Abstract: 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: GrantFiled: January 25, 2017Date of Patent: January 4, 2022Assignee: NEC CORPORATIONInventors: Giuseppe Siracusano, Roberto Bifulco
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Patent number: 11212212Abstract: 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: GrantFiled: April 15, 2020Date of Patent: December 28, 2021Assignee: Hewlett Packard Enterprise Development LPInventors: Dave Winchell, Chris Franklin