Having Dedicated Test Line Or Channel Patents (Class 370/251)
  • Patent number: 10298483
    Abstract: An operator dashboard (user interface) used for testing disparate devices simultaneously and independently and further capable of asynchronous communication is disclosed.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: May 21, 2019
    Assignee: Contec, LLC
    Inventors: Samant Kumar, Dinesh Kumar, Shivashankar Diddimani, Gunjan Samaiya
  • Patent number: 10243862
    Abstract: A method for sampling packets for a network flow, includes: receiving a packet at a network port of a network switch appliance, the network switch appliance comprising an instrument port for communication with a network monitoring instrument; determining whether the packet belongs to a network flow that is desired to be monitored, wherein the act of determining is performed based at least in part on one or more information in a control plane using a processing unit; and passing the packet to the instrument port if the packet belongs to the network flow.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: March 26, 2019
    Assignee: Gigamon Inc.
    Inventors: Dominick Cafarelli, Murali Bommana, Sandeep Dahiya, Jesse C. Shu, Anoop V. Kartha
  • Patent number: 10200291
    Abstract: A packet analysis method includes acquiring a first acknowledge packet and a second acknowledge packet transmitted from the first device; acquiring a plurality of packets transmitted from the second device during a period from reception of the first acknowledge packet to reception of the second acknowledge packet; identifying a number of packets corresponds to data transmitted from the second device, by calculating a difference between a first identification number corresponding to the first acknowledge packet and a second identification number corresponding to the second acknowledge packet; calculating a plurality of bandwidth values, a number of the plurality of bandwidth values is identical to the number of packets, based on acquisition timings of the plurality of packets and an interval between the acquisition timings of two adjacent packets; and determining a bandwidth value that is to be removed from the plurality of bandwidth values by comparing the plurality of bandwidth values.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: February 5, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Naoyoshi Ohkawa, Yuji Nomura, Sumiyo Okada, Fumiyuki Iizuka
  • Patent number: 10182446
    Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of selecting a wireless communication channel to communicate in a wireless communication network. For example, an apparatus may include a channel selector to select at a network controller of a first wireless communication network a first wireless communication channel to communicate between the network controller and one or more wireless communication devices, to detect on the first wireless communication channel a frame from a second wireless communication network, and based on a medium access control (MAC) address of the frame, to select between remaining on the first wireless communication channel and selecting a second wireless communication channel to communicate between the network controller and the one or more wireless communication devices.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: January 15, 2019
    Assignee: INTEL IP CORPORATION
    Inventors: Izoslav Tchigevsky, Noam Ginsburg
  • Patent number: 10075357
    Abstract: A system, which uses the internet to deliver time sensitive information, includes an overlay node, having a plurality of overlay nodes, which are used to deliver the time sensitive information. To better characterize the connection between a sending node and a receiving node, the sending node periodically requests each overlay node in the path between the sending node and the receiving node to force a retransmission of a packet, while also forwarding that same packet to the next overlay node. In this way, the delay associated with each link in the path can be quantified and recorded by the receiving node. Based on the observed transmission delays, the receiving node may determine an optimal buffer time. This buffer time is the amount of buffering performed at the receiving node prior to outputting the time sensitive information.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: September 11, 2018
    Assignee: VideoLink LLC
    Inventors: James Howard Cervantes, Michael Christopher Regan
  • Patent number: 10063671
    Abstract: A network switch apparatus, includes: a network port configured to receive a packet; instrument ports configured to communicate with respective network monitoring instruments; a packet duplication module configured to copy the packet to provide multiple packets that are identical to each other: a tagging module configured to tag the multiple packets with different respective identifiers to obtain tagged packets; and a processing unit coupled to the instrument ports; wherein the processing unit is configured to determine whether a first one of the tagged packets satisfies a first criterion, whether a second one of the tagged packets satisfies a second criterion, process the first one of the tagged packets in a first manner if the first one of the tagged packets satisfies the first criterion, and process the second one of the tagged packets in a second manner if the second one of the tagged packets satisfies the second criterion.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: August 28, 2018
    Assignee: Gigamon Inc.
    Inventors: Shehzad Merchant, Qi Ming Ng, Ning Wang
  • Patent number: 10044581
    Abstract: A first encapsulation protocol processing component (EPPC) at a particular device of a virtualized computing service establishes a network packet tracking session with a second EPPC at another device. The first EPPC tags at least some encapsulation packets (which contain baseline packets generated at or directed to guest virtual machines) sent to the second EPPC as tracked packets. The first EPPC obtains network metrics corresponding to the tracked packets of the session from the second EPPC, prepares network health updates based on the metrics, and send the updates to a network health management service associated with the virtualized computing service.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: August 7, 2018
    Assignee: Amazon Technologies, Inc.
    Inventor: David Sean Russell
  • Patent number: 10033602
    Abstract: A network health management service (NHMS) component associated with a virtualized computing service receives network health updates from a first encapsulation protocol processing component (EPPC). The health updates are based on traffic observed between the first EPPC and another EPPC. The NHMS component obtains additional metrics to diagnose a potential network impairment indicated by the health updates, and initiates remedial actions if the additional metrics appear to confirm a network impairment.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: July 24, 2018
    Assignee: Amazon Technologies, Inc.
    Inventor: David Sean Russell
  • Patent number: 10003660
    Abstract: Presented herein are service-function chaining techniques that enable data plane signaling of a packet as a candidate for capture at various network nodes along a service function path of a service function chain. That is, a capture signal is embedded within the respective packet that carries a user traffic. The signaling occurs in-band, via the data plane, such that classification of the packet for capture beneficially occurs, at the ingress node of the network, once to which subsequent network nodes along a service function path are signaled to capture or further inspect the packet for capture. Service function chaining treats service functions as resources with associated attributes available for scheduled consumption to which selective traffic are steered according to a policy construct to the requisite network-service resources.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: June 19, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Richard Furr, Nagendra Kumar Nainar, Carlos Pignataro, Joseph Michael Clarke
  • Patent number: 9954769
    Abstract: A network device, is to be deployed in a network between a first network domain and a second network domain, and is to be configured for fast reroute. The network device includes a first traffic forwarder control module, corresponding to the first network domain, which is to determine a primary next hop in the first network domain. The control plane includes a second traffic forwarder control module, corresponding to the second network domain, which is to determine a backup next hop in the second network domain. The backup next hop is to be used as a fast reroute for the primary next hop in response to a failure associated with the primary next hop. The control plane includes a controller module, in communication with the first and second traffic forwarder control modules, which is to configure a forwarding structure of the forwarding plane with the primary and backup next hops.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: April 24, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Lars Ernstrom, Pramodh D'Souza, Zoltan Toth
  • Patent number: 9749880
    Abstract: A method performed by a base station in a network, includes detecting a malfunction associated with a backhaul link to the network; identifying one or more neighboring base stations located within a transmission range of the base station; selecting at least one of the one or more neighboring base stations based on one or more parameters, associated with the one or more neighboring base stations, in response to detecting the malfunction; receiving, by a radio frequency (RF) transceiver associated with the base station, a signal from a user equipment; and transmitting, by an RF transceiver associated with the base station, the signal to the selected at least one of the one or more neighboring base stations.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: August 29, 2017
    Assignees: Verizon Patent and Licensing Inc., Cellco Partnership
    Inventors: Derek Hongwei H. Bao, Patricia Ruey-Jane Chang, Steven R. Rados, Scott Anthony Townley, Vikram Rawat, Maria G. Lam
  • Patent number: 9602343
    Abstract: In a software defined network, dataplane connectivity is established between a computing device in the network and a controller. The computing device receives a probe packet from the controller, and identifies a port of the computing device through which the probe packet was received. The computing device sets a local route for communication with the controller through the identified port. The computing device then establishes a connection with the controller through the local route. This procedure is reiterated to incrementally expand network connectivity to a plurality of network devices.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: March 21, 2017
    Assignee: Google Inc.
    Inventors: Lorenzo Vicisano, James Wanderer, Steven Padgett, Amin Vahdat
  • Patent number: 9565119
    Abstract: A packet analysis method includes acquiring a first acknowledge packet and a second acknowledge packet transmitted from the first device; acquiring a plurality of packets transmitted from the second device during a period from reception of the first acknowledge packet to reception of the second acknowledge packet; identifying a number of packets corresponds to data transmitted from the second device, by calculating a difference between a first identification number corresponding to the first acknowledge packet and a second identification number corresponding to the second acknowledge packet; calculating a plurality of bandwidth values, a number of the plurality of bandwidth values is identical to the number of packets, based on acquisition timings of the plurality of packets and an interval between the acquisition timings of two adjacent packets; and determining a bandwidth value that is to be removed from the plurality of bandwidth values by comparing the plurality of bandwidth values.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: February 7, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Naoyoshi Ohkawa, Yuji Nomura, Sumiyo Okada, Fumiyuki Iizuka
  • Patent number: 9479424
    Abstract: A method is executed by a network device to a calculate loop free alternative (LFA) for each node in an intermediate system-intermediate system (IS-IS) area or IS-IS domain where the network device is connected with other nodes via multiple parallel links. The method includes a shortest path first (SPF) computation of the primary paths for the network device that tracks directly connected links from each node in the IS-IS area or IS-IS domain to the network device which is a source node for the SPF. These tracked links can then be utilized in subsequent LFA computations to avoid unnecessary calculations.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: October 25, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Uma S. Chunduri, Vasant S. Patil, Wenhu Lu, Evgeny Tantsura
  • Patent number: 9420078
    Abstract: A portable telecommunication test set with a web browser incorporated therein is provided. A standard Hyper Text Mark-up Language or Wireless Application Protocol browser may be incorporated within the portable test set, allowing a network technician to access the Internet as well as other remotely-located sources of information to retrieve data and other useful technical information while in the field for communication network or telephone line maintenance, troubleshooting or repair. The test set may contain memory to locally store certain technical information that may be retrieved and “read” by the built-in browser module when prompted by the network technician. The web browser may display the content of the requested information on a display provided on the test set. Line-specific (as well as manufacturer-specific) test information need not be in a manufacturer-dictated proprietary format. Testing-related data may thus be supplied by a vendor other than the manufacturer of the test set.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: August 16, 2016
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Samuel N. Zellner, Nathan Sargent, Mark J. Enzmann, Robert T. Moton, Jr.
  • Patent number: 9413859
    Abstract: A network switch apparatus, includes: a network port configured to receive a packet; instrument ports configured to communicate with respective network monitoring instruments; a packet duplication module configured to copy the packet to provide multiple packets that are identical to each other; a tagging module configured to tag the multiple packets with different respective identifiers to obtain tagged packets; and a processing unit coupled to the instrument ports; wherein the processing unit is configured to determine whether a first one of the tagged packets satisfies a first criterion, whether a second one of the tagged packets satisfies a second criterion, process the first one of the tagged packets in a first manner if the first one of the tagged packets satisfies the first criterion, and process the second one of the tagged packets in a second manner if the second one of the tagged packets satisfies the second criterion.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: August 9, 2016
    Assignee: Gigamon Inc.
    Inventors: Shehzad Merchant, Qi Ming Ng, Ning Wang
  • Patent number: 9300445
    Abstract: Methods and apparatus for distributing content using a spectrum generation device. In one embodiment, digital content is received via a time-multiplexed network transport (such as Gigabit Ethernet), and converted to frequency channels suitable for transmission over a content distribution (e.g., Hybrid Fiber Coaxial (HFC)) network. In one variant, the conversion is performed using digital domain processing performed by a full spectrum generation device. Additionally, methods and apparatus for selectively adding, removing, and/or changing digital content from the full spectrum device are also disclosed. Various aspects of the present invention enable physical (infrastructure) consolidation, and software-implemented remote management of content distribution.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: March 29, 2016
    Assignee: Time Warner Cable Enterprise LLC
    Inventor: Glen Hardin
  • Patent number: 9146826
    Abstract: Embodiments disclosed herein enable network simulation including a range of networking technologies to be scaled to include large numbers of devices under test (DUTs) even though computing resources, such as a total number of simulation hosts or IP addresses, may be limited. By enabling a network simulator to scale with limited computing resources, developers may be enabled to reduce the requirements for physical space, power, cost, and maintenance for network simulation. For example, developers may be able to determine capacity, such as a total number of DUTs that a network management system (NMS) is capable of managing, even though few simulation hosts or IP addresses may be available for simulation of the DUTs.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: September 29, 2015
    Assignee: Tellabs Operations, Inc.
    Inventors: Hammad A. Khan, Li Zou, John Chan
  • Patent number: 9143414
    Abstract: A system, method and computer program product monitors the operation of a telecommunications network and receives source metadata at a metadata comparator. The source metadata is associated with data captured from a source in a telecommunications network. Target metadata associated with target data is also received at the metadata comparator. The source and target metadata are compared to identify metadata parameters that match or do not match. Bias data is also received at the metadata comparator. The bias data comprises weighting parameters and/or tolerance parameters. The weighting and tolerance parameters correspond to selected metadata parameters.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: September 22, 2015
    Assignee: Tektronix, Inc.
    Inventors: Devendra Parkar, Sunil Khiani
  • Patent number: 9030952
    Abstract: An apparatus and method are provided for precoding by limited cooperation in a wireless communication system. A method of data precoding by a Base Station (BS) in a wireless communication system includes determining a Channel Quality Indicator (CQI) parameter indicating channel size information between the BS and a User Equipment (UE) served by the BS; transmitting the determined CQI parameter through a backhaul to a central unit; receiving, from the central unit, a weight factor based on a CQI parameter from each cell; and determining a precoding vector based on the weight factor. The weight factor represents a relative ratio of an inter-cell environment that is to be interfered by the BS.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: May 12, 2015
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Eun-Seok Ko, Chung-Yong Lee, Myoung-Seok Kim, Mi-Sun Yoon, Yung-Soo Kim, June Moon
  • Patent number: 9026554
    Abstract: The present disclosure relates generally to the field of proactive data object replication in named data networks. In various examples, proactive data object replication may be implemented in one or more named data networks in the form of systems, methods and/or algorithms.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: May 5, 2015
    Assignee: International Business Machines Corporation
    Inventors: Seraphin B. Calo, Raheleh B. Dilmaghani, Bong Jun Ko, Kang-Won Lee, Vasileios Pappas, Dinesh C. Verma
  • Patent number: 9019843
    Abstract: In a mobile data network with a breakout system, when data is broken out, the RLC function is split into two different flows, between the UE and the breakout system and between the breakout system and the RNC. These two flows are processed by different RLC functions that may drift apart and become out of synchronization resulting in errors that diminish the user's quality of experience. Other errors may also occur in communication on these two different flows. The breakout system attempts to correct these errors using data stored locally in communication data structures for the two data flows. If the errors cannot be corrected, the breakout system can initiate an RLC reset into both of these flows to resynchronize the data communication.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: April 28, 2015
    Assignee: International Business Machines Corporation
    Inventors: Ronald L. Billau, Canio Cillis, Vincenzo V. Di Luoffo
  • Patent number: 9015337
    Abstract: In one implementation, a stream client emulator includes a stream access module and a monitor module. The stream access module receives stream data from a streaming service and consumes the stream data according to an output rate of a stream without outputting the stream data. The monitor module determines that buffer events have occurred relative to the stream data and a buffer characteristic.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: April 21, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Nir Hemed, Ithai Levi
  • Patent number: 9007925
    Abstract: Systems and methods provide remote performance monitoring and testing to a cell site in a cellular communications network. The systems and methods include a network management center having remote monitoring and testing capabilities utilizing an intelligent customer service unit that traps and makes available alarm information on the transport link.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: April 14, 2015
    Assignee: AT&T Intellectual Property I, L.P.
    Inventor: J. Scott Daniel
  • Patent number: 8989024
    Abstract: A downstream device in a network may monitor and collect data on its condition, including detecting overload conditions, and transmit such data to an upstream network device. The upstream network device may select a best downstream device for a particular traffic flow based on condition data received from downstream devices and transmit the traffic flow to the selected downstream device. A network management server may be configured to perform similar functions, instructing network devices on how to transport data through a network based on condition data received from such devices.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: March 24, 2015
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Venson M. Shaw, Terry Figurelle, Qingmin Hu, Ryan Eric Redfern, Jianrong Wang
  • Patent number: 8989027
    Abstract: An apparatus and method for matching the radio channel measurement timing of Minimization of Drive Test (MDT) cycle with timings of the Discontinuous Reception (DRX) cycle are provided. The radio channel measurement method of a terminal according to the present invention includes configuring a DRX cycle, receiving a Minimization of Drive Test (MDT) cycle, comparing the DRX cycle and the MDT cycle, measuring, when the MDT cycle is an integer multiple of the DRX cycle, the radio channel at DRX timings matching with MDT timings, and storing a result of the measurement.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: March 24, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Bum Kim, Soeng Hun Kim, Kyeong In Jeong
  • Patent number: 8982719
    Abstract: In an example embodiment, a method for dynamically troubleshooting voice quality. The method comprises generating a request to intercept a predetermined data stream on a network, acquiring a replicated copy of the intercepted data stream responsive to the request and analyzing the replicated copy of the intercepted data stream.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: March 17, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Anantha Narayanan Seetharaman, Jayesh A. Chokshi, Jennifer Mun Blatnik
  • Patent number: 8976686
    Abstract: A Tandem connection monitoring (TCM) path search method, a TCM path creation method, a path search management system, and a path creation management system are provided. The source end TCM mode and the sink end TCM mode at a single level of each node in an Optical Channel Data Unit-k (ODUk) path are acquired; and a TCM path at the single level between nodes in the ODUk path is calculated according to the source end TCM mode and the sink end TCM mode at the single level of each node that are acquired. TCM level information and the sink end TCM mode of a second node for TCM path creation between a first node and the second node are acquired by specifying the first node and the second node; and a TCM path between the first node and the second node that are specified is created and stored.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: March 10, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shujian Wang, Heng Shen
  • Patent number: 8971203
    Abstract: A first communication node communicates by multiple-input-multiple-output (MIMO) wireless communications with a second communication node of a wireless communication system. The method includes receiving a Sounding Reference Signal (SRS) over a plurality of subcarriers transmitted by the second communication node for MIMO communications. Channel quality is measured responsive to the sounding reference signal to output a first channel quality value. A demodulation reference signal is received over a plurality of subcarriers transmitted by the second communication node for MIMO communications. Channel quality is measured responsive to the demodulation reference signal to output a second channel quality value. Reliability of the measurements of the first channel quality value and the second channel quality value is determined. The first and second channel quality values are combined while compensating for the determined reliability difference between the measurements to generate a combined channel quality value.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: March 3, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Chester Park
  • Patent number: 8964574
    Abstract: A data communication network (DCN) having a plurality of network devices coupled to the DCN with at least one of the network devices having a “boot once” connectivity manager processor (CMP). The CMP receives its power over the DCN rather than from the power applied to the network devices. The CMP can execute special operating system code and maintain network connectivity even if the network device itself is powered off, is being booted or is otherwise non-functional. The CMP is also coupled to the network device's memory so that it may respond to out-of-band polling requests for device status information from network management tools. With CMP, network administrators can monitor the boot process of network devices, determine that a network device is non-functional due to power loss and can maintain an accurate inventory status of spare network devices that are stored un-powered in a spares closet.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: February 24, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Douglas A. Gourlay, Prashant Gandhi, Mark McKee, Omar G. Abuabara
  • Patent number: 8948167
    Abstract: One embodiment of the present invention is a control unit for distributing packets of work to one or more consumer of works. The control unit is configured to assign at least one processing domain from a set of processing domains to each consumer included in the one or more consumers, receive a plurality of packets of work from at least one producer of work, wherein each packet of work is associated with a processing domain from the set of processing domains, and a first packet of work associated with a first processing domain can be processed by the one or more consumers independently of a second packet of work associated with a second processing domain, identify a first consumer that has been assigned the first processing domain, and transmit the first packet of work to the first consumer for processing.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: February 3, 2015
    Assignee: NVIDIA Corporation
    Inventors: Lacky V. Shah, Sean J. Treichler, Abraham B. de Waal
  • Patent number: 8937879
    Abstract: A system for managing energy consumption of a mesh network. The system includes a controller, a dynamic routing device configured to perform a functionality of either a routing device or a non-routing device, and at least one processor. The at least one processor is programmed to identify a number of routing devices in the mesh network, determine a signal strength of each of the identified routing devices with respect to at least one of the controller and the dynamic processor, and determine whether the dynamic routing device will perform the functionality of a routing device or a non-routing device upon joining the mesh network based on the number of identified routing devices and the signal strength of each of the identified routing devices.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 20, 2015
    Assignee: General Electric Company
    Inventors: Jeff Donald Drake, Charles Ray Smith
  • Patent number: 8917613
    Abstract: The present invention provides a method for transmitting keepalive information, a terminal, and a network device. The method includes: transmitting, by a terminal, first information to a network device, where the first information is used to instruct the network device to determine keepalive information to be received; the terminal transmits keepalive information to the network device, where the network device is configured to optimize the keepalive information. With the present invention, signaling loads are reduced.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: December 23, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Fangfu Guo, Dingzhang Dai, Yongqiang Gao, Dong Chen, Yanyan Chen, Xiaoxiao Zheng, Li Feng
  • Patent number: 8917609
    Abstract: A line monitoring apparatus includes a state change detection number counter configured to count a state change detection number that is a number of a state change in a line being detected by a first type detecting process; and a state change frequency determiner configured to determine whether or not the state change detection number counted per a predetermined unit time exceeds a predetermined threshold value, wherein when the state change detection number counted per the unit time exceeds the threshold value, the detecting process of detecting a state change in the line is changed from the first type detecting process to a second type detecting process.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: December 23, 2014
    Assignee: Fujitsu Limited
    Inventor: Norihiro Yoshida
  • Patent number: 8885657
    Abstract: Back pressure is mapped within a network, and primary bottlenecks are distinguished from dependent bottlenecks. Further, the presently disclosed technology is capable of performing network healing operations designed to reduce the data load on primary bottlenecks while ignoring dependent bottlenecks. Still further, the presently disclosed technology teaches identifying and/or suggesting a switch port for adding a node to the network. More specifically, various implementations analyze traffic load and back pressure in a network, identify primary and dependent bottlenecks, resolve the primary bottlenecks, collect new node parameters, and/or select a switch port for the new node. Further, a command can be sent to a selected switch to activate an indicator on the selected port. New node parameters may include new node type, maximum load, minimum load, time of maximum load, time of minimum load and type of data associated with the new node.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: November 11, 2014
    Assignee: Brocade Communications Systems, Inc.
    Inventors: Michael Atkinson, Vineet Abraham, Sathish Gnanasekaran, Rishi Sinha
  • Patent number: 8879403
    Abstract: Measuring the speed of a link is disclosed. An initial packet train having an initial length over the link is sent. A speed result is determined based at least in part on an actual time of reception of individual packets in the packet train. The quality of the speed result for the initial packet train is evaluated according to a constraint. A determination is made as to whether to send a subsequent packet train based at least in part on the quality of the speed result.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: November 4, 2014
    Assignee: Hobnob, Inc.
    Inventor: Jared Go
  • Patent number: 8861360
    Abstract: A monitoring device may determine an application to monitor, may determine a parameter to monitor, where the parameter is associated with at least one of a network or a device, may determine user devices from which to collect the parameter, and may transmit, to the user devices, information that identifies the application and information that identifies the parameter. The monitoring device may receive, from the user devices, information that identifies values of the parameter, may analyze the values of the parameter, may determine, based on the analysis, that the application is a cause of a problem associated with the network or the device. The monitoring device may perform an action based on determining that the application is a cause of the problem.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: October 14, 2014
    Assignees: Verizon Patent and Licensing Inc., Cellco Partnership
    Inventors: Patricia R. Chang, Steven R. Rados, Maria G. Lam, Lalit R. Kotecha, Arda Aksu, Jack T. Tang
  • Patent number: 8850458
    Abstract: A system, method, and computer program are provided for combining results of event processing received from a plurality of servers. In use, an event is sent to a plurality of servers. Further, a result of processing of the event is received from each of the servers. In addition, the results received from the plurality of servers are combined.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: September 30, 2014
    Assignee: Amdocs Software Systems Limited
    Inventor: Omer Shani
  • Patent number: 8824445
    Abstract: This disclosure describes processes and methods for enhancing reporting of status information in a wireless sensor network. This disclosure also provides designs of wireless sensor devices configured to connect to a wireless network, and to execute the processes disclosed herein. As described herein, a first sensor device transmits a beacon signal to a second wireless device, and the beacon signal is transmitted while the first and second wireless devices are disconnected from the sensor network. The first wireless device facilitates supplemental network formation by transmitting information to the second wireless device, wherein the information causes the second wireless device to form the supplemental network by performing network joining procedures with the first wireless sensor device, and wherein, after performing network joining procedures, the second wireless device transmits status information to the first wireless sensor device.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: September 2, 2014
    Assignee: Cubic Corporation
    Inventors: Paul Berenberg, Mike Baumgartner, Igor Ryshakov, Anatoli Gostev
  • Patent number: 8824335
    Abstract: Communication ability between nodes in a cluster-based computer system is tracked to inform applications executing on the nodes of the existence and quality of the endpoint-to-endpoint communications available between the nodes. Communications between a node and other nodes are tracked, and a database records the communication ability between the node and the other nodes for each link between the nodes. The tracking and recording are repeated at the other nodes. A registration by an application executing at a particular one of the nodes to receive notifications of changes in the communication ability with another node over a particular link (or in general) will cause notification of the application when the link status changes.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: September 2, 2014
    Assignee: International Business Machines Corporation
    Inventors: Rajeev Mishra, Lance W. Russell
  • Patent number: 8780735
    Abstract: Techniques to test performance of terminals and access points in CDMA data (e.g., cdma2000) systems. A framework of protocols and messages is provided to support systematic performance testing of terminals and to ensure interface compatibility. The framework comprises a Forward Test Application Protocol (FTAP) for testing forward channels and a Reverse Test Application Protocol (RTAP) for testing reverse channels. Techniques are also provided to (1) test different types of channels (e.g., traffic channels as well as auxiliary channels), (2) test bursty data transmissions, (3) support “persistence” testing (i.e., continued testing over connection and disconnection), (4) force the settings of certain auxiliary channels (e.g., so that the error rate of the channels may be determined), and (5) collect, log, and report various statistics that may be used to derive performance metrics such as throughput and packet error rate.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: July 15, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Rajeev Krishnamurthi, Rajesh K. Pankaj, Bibhu Mohanty, Paul E. Bender
  • Patent number: 8774010
    Abstract: An example method is provided and includes communicating a request packet to a first network element. The request packet is associated with a request for a list of flow parameters. The method also includes receiving a response to the request for the list of flow parameters, and communicating a test packet to initiate fault monitoring. The test packet is communicated to a second network element and the test packet includes at least one of the flow parameters provided by the first network element. The method also includes receiving a plurality of fault monitoring results. The results are limited to reflect multiple paths associated with the first network element.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: July 8, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Chandan Mishra, Rohit S. Watve
  • Patent number: 8761042
    Abstract: The present invention discloses a method for indicating an overload indicator (OI) report comprising: a first terminal determining a layer in a coverage area of the first terminal where a second terminal is located, and setting a layer indicating field of the OI report based on the layer; the first terminal determining an OI level resetting threshold, setting an average interference level indicating field of the OI report based on the OI level resetting threshold; and the first terminal resetting levels of the OI based on the OI level resetting threshold, and setting a physical resource block interference state indicating field of the OI report based on the reset levels of the OI. The present invention discloses a system for indicating an overload indicator (OI) report. Based on the method and system, the overhead of the system can be decreased efficiently.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: June 24, 2014
    Assignee: ZTE Corporation
    Inventor: Wei Wei
  • Patent number: 8750134
    Abstract: A management computer has: a storage unit in which a route information indicating a transfer route of frames in the communication network is stored; and a monitoring unit. The monitoring unit refers to the route information to transmit a frame to the transfer route and performs identification processing that identifies a location of a failure on the transfer route. First to N-th nodes (N is an integer equal to or more than 3) line up in order along the transfer route. The i-th node (i=1 to N?1) forwards a received frame to the (i+1)-th node, and the N-th node forwards a received frame to the management computer. In the identification processing, the monitoring unit sets at least one node between the first node and the N-th node as an insertion node. Then, the monitoring unit transmits a frame to the insertion node each, and identifies the location of the failure based on reception state of a frame from the N-th node.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: June 10, 2014
    Assignee: NEC Corporation
    Inventor: Satoshi Kamiya
  • Patent number: 8750136
    Abstract: The monitoring method includes: detecting a cut link among a plurality of links forming a link aggregation; counting lost packets related to remaining links in the plurality of links excluding the cut link to obtain a first lost packet count for each first address included in packets passed through the remaining links; sorting the first lost packet counts into first segments corresponding to the remaining links; determining degradation in quality for each first segment on the basis of the first lost packet counts sorted into the first segments; determining whether the cut link is in failure on the basis of the determined degradation in quality for each first segment; and outputting a determination result of whether the cut link is in failure.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: June 10, 2014
    Assignee: Fujitsu Limited
    Inventor: Tetsuya Nishi
  • Patent number: 8743705
    Abstract: A wireless mesh network test system comprises a plurality of mesh network nodes, each comprising an antenna connection. An antenna network couples the antenna connections of the plurality of nodes, and a plurality of attenuators are distributed in the antenna network such that the attenuators simulate distance between the wireless mesh network nodes.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: June 3, 2014
    Assignee: Digi International Inc.
    Inventors: Travis S. Holman, Steven L. Minch, John P. Filoso, John Clark Roberts, Paul A. Dahl, Michael L. Zarns
  • Patent number: 8737255
    Abstract: A method and an arrangement (500) in a radio network node (130) for redistributing resources between at least a first and second communication device (110, 120) are provided. The radio network node (130) obtains a first estimate of a first signal quality for the first communication device (110) and a second estimate of a second signal quality for the second communication device (120). The radio network node (130) determines a first required signal quality for the first communication device (110) and a second required signal quality for the second communication device (120). When the first required signal quality is less than the first estimate and the second required signal quality is greater than the second estimate, the radio network node (130) allocates resources to the first and second communication devices (110, 120) such that the first signal quality decreases and such that the second signal quality increases.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: May 27, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Sara Landström, Per Burström, Stefan Wänstedt
  • Patent number: 8724481
    Abstract: One or more field devices, and a controller are connected so as to be able to communicate with a field device through a first communication route, and a device monitoring unit that is connected so as to be able to communicate with the field device through a second communication route are provided, wherein the device monitoring unit is provided with a checking tool for checking a status of the field device and the status of communication through the first and/or the second communication routes, based on a response received through the second communication route from the field device in response to a signal sent through either the first communication route or the second communication route.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: May 13, 2014
    Assignee: Azbil Corporation
    Inventors: Kouki Sasaki, Hiroyuki Tsugane
  • Patent number: 8717927
    Abstract: A first communication node communicates by multiple-input-multiple-output (MIMO) wireless communications with a second communication node of a wireless communication system. The method includes receiving a Sounding Reference Signal (SRS) over a plurality of subcarriers transmitted by the second communication node for MIMO communications. Channel quality is measured responsive to the sounding reference signal to output a first channel quality value. A demodulation reference signal is received over a plurality of subcarriers transmitted by the second communication node for MIMO communications. Channel quality is measured responsive to the demodulation reference signal to output a second channel quality value. Reliability of the measurements of the first channel quality value and the second channel quality value is determined. The first and second channel quality values are combined while compensating for the determined reliability difference between the measurements to generate a combined channel quality value.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: May 6, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Chester Park
  • Patent number: 8713630
    Abstract: A network system capable of communicating with a first end user device over a wireless access network, and a method performed by the network system. The method comprises receiving an instruction from the first end user device, the instruction being based on a user input obtained through a user interface of the first end user device, the user input requesting a change to a forwarding service, the forwarding service enabling the first end user device to forward traffic between the wireless access network and one or more other end user devices according to a forwarding policy; determining to change a setting associated with the forwarding policy based on the instruction; and initiating provisioning of one or more elements to change the setting associated with the forwarding policy.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: April 29, 2014
    Assignee: Headwater Partners I LLC
    Inventor: Gregory G. Raleigh