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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Abstract: A fault injection circuit injects a test signal into a data bus with a normal high logic level and a normal low logic level. The test signal has a greater logic level greater than the normal high logic level of the data bus or a lower logic level lower than the normal low logic level of the data bus. An analog-to-digital converter is coupled to a voltage level detector for sensing an aggregate level of an aggregate signal on the data bus. The aggregate signal is composed of the termination circuit signal and the test signal. A diagnostic tool determines whether a faulty connection between the data bus and a network device exists, where the sensed aggregate level exceeds at least one of the normal high logic level and the normal low logic level.

Abstract: A method for monitoring voice quality in a communication network. In a first embodiment, the method comprises the steps of: establishing a voice communication pathway (VCPW) between first and second telephone terminals; establishing speech cadence between first and second terminals, wherein the terminals alternate between opposing send and listen/receive modes such that when one of the terminals is sending a voice test message the other terminal is either listening for or receiving the voice test message and vice versa; and calculating a voice quality score for one or more received voice test messages. In a second embodiment, synchronous cadence is established between a plurality of telephone terminals and a voice recognition server (VRS).

Abstract: A method and system for measuring the performance of the end-to-end mobile subscriber connection is disclosed. Test traffic originating from the network is sent to the mobile device and the mobile device acting as a test traffic reflector includes current radio bearer conditions that may be impacting the end-to-end performance of the subscriber connection within the test traffic that is returned back to the source. The radio access node acting as a test traffic interceptor includes current radio cell conditions that may be impacting the end-to-end performance of all subscriber connections in the cell within the test traffic that is returned back to the source. The test equipment or controller collects, calculates and reports the IP test performance towards the mobile device and radio node with correlation to the radio bearer and radio cell performance.

Abstract: A probing method, arrangement, and system for estimating a condition, such as available bandwidth, of a data path in a communication network including multiple nodes are described. A probe-packet sender node transmits probe packets with a sent inter-packet separation and a time-to-live towards an intermediate node. Control message packets are generated by the intermediate node when the time-to-live expires. The probe-packet sender node receives the control message packets and calculates a received inter-packet separation. An estimate of the data path condition can be generated based on the sent inter-packet separation and the received inter-packet separation.

Abstract: Methods and devices for network modeling, service provisioning, and service management are disclosed. A network modeling method includes accessing information describing a set of nodes of a communications network, physical links physically connecting the nodes, and logical links logically connecting the nodes using the physical links. The method further includes, based on the information, creating a different connection group object for each of the physical links and for each of the logical links. Each connection group object includes a connection representing the link, a first endpoint representing a first node of the set connected to the link; and a second endpoint representing a second node of the set connected to the link.

Abstract: Methods, devices, and storage media for tracking communications between a user and a user-selected party; obtaining communication tracking information based on the tracking, wherein the communication tracking information includes a time associated with each communication; calculating a communication gap pertaining to the user-selected party based on the communication tracking information, wherein the communication gap is a period of time that elapsed from a last communication with the other party to a current time; and providing the user with communication gap information in response to receiving a user request.

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.

Abstract: There is disclosed apparatus and processes for generating simulated network test traffic from a stored test traffic definition. A network test system or a user may select arbitrary ways to group flows of test traffic into streams, and to modify these streams before and during transmission of the test traffic by network test equipment.

Abstract: A system and method for channel information feedback in a wireless communications system is provided. A method for communications device operation includes receiving a pilot transmitted by a controller, computing a channel estimate for a channel between the controller and a communications device, the computing based on the pilot, computing a channel correlation matrix for the channel based on the channel estimate, and transmitting a reduced rank representation of the channel correlation matrix to the controller as a first feedback information. The method also includes adapting a first codebook based on the reduced rank representation of the channel correlation matrix, computing a representation of the channel using the adapted codebook, transmitting the representation of the channel as a second feedback information, and receiving a transmission beamformed based on the first feedback information and the second feedback information.

Abstract: An Ethernet cable used with an Ethernet test-set allows a single connection to an Ethernet port of a network element while maintaining individual connections to separate ports on the test-set. The far-end of the signal path is a single Ethernet cable port having its transmit and receive pins interconnected. The far-end port interconnections cause a test signal which has traveled to the far-end port to be returned to the test-set and to be receive in a test-set port other than the originating port Two signal paths can be simultaneously tested with the same test-kit. Interconnections between the test-set ports by way of the cable maintain a “no-signal”alarm disabled, which otherwise would be energized because there is no signal being received in the port from which the test signal originated.

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.

Abstract: A mesh network architecture is disclosed whose protected services can be restored quickly after the failure of a network element (i.e., a network node, a network transmission facility). Furthermore, the protected services can be restored after all single and most multiple network-element failures as quickly as a ring network can recover from a single network-element failure. And still furthermore, the illustrative embodiment is also advantageous in that it can be administered and maintained, for most purposes, as a collection of distinct ring networks. Embodiments of the present invention can use any protocol or transmission technology (e.g., wavelength division multiplexing, SONET/SDH, ATM, etc.). Furthermore, embodiments of the present invention distinguish between the transport function, the provisioning function, and the fault notification functions of a network and provide that each of the functions can be accomplished by different networks using different protocols.

Abstract: A method is implemented in a network that comprises a plurality of ports and an indicator associated with each port. The method comprises forming a frame. The frame passes through the network. The frame causes indicators of multiple ports to illuminate to provide an indication of a path through the network Each of the ports remain illuminated for at least a period of time after the frame passes through each such port to enable a person to concurrently visualize all of the ports comprising the path.

Abstract: There are disclosed methods and a packet receiver for testing a network. A packet may be received from the network at a port unit. The port unit may ignore the received packet if the received packet does not contain a valid test signature. When the received packet contains a valid test signature, the port unit may determine if the port unit is an expected destination for the received packet. When the port unit is not an expected destination for the received packet, a misdirected packet counter may be incremented. When the port unit is an expected destination for the received packet, test data may be extracted from the received packet.

Abstract: A network includes a network switch and plural remote nodes, each connected by a cable or channel with the network switch. The network switch includes a set of channel interfaces, each of which includes a visual indicator responsive to data traffic on the associated channel. A cable tracing arrangement includes a tracing signal generator at a channel interface of each remote node, which generates a tracing signal when cable tracing is desired. The tracing signal, when generated for cable tracing, flows over an existing cable to the associated channel interface of the network switch. At the associated channel interface, the tracing signal is converted to a visual illuminator drive signal, which illuminates the visual indicator of the channel with an indication that is distinguishable from the data traffic indication.

Abstract: The disclosed embodiments include a method for monitoring and optimizing network performance to a wireless device that includes determining network performance information of a wireless router and communicating data packets containing the network performance information to a network management device. In one embodiment, the network management device is configured to transmit instructional data packets to the wireless router that include instructions for optimizing network performance associated with the wireless device in response to identify a network performance problem associated with the wireless router.

Abstract: Described is automatically testing the quality of an audio channel between a caller and a callee that includes a device under test, such as a VoIP or other gateway. An analyzer receives timestamps from a caller and callee during a calling session, including timestamps for when the callee initially provides audio (e.g., speech) to the caller, when the caller initially detects sound, when the caller initially provides audio to the callee, and when the callee initially detects sound. The analyzer uses the relative timing of the timestamps and the speech recognizer's outcome to determine whether the audio channel is experiencing interference or echo. When the audio includes speech, a confidence level corresponding to accuracy of speech recognition also may establish the audio channel's quality. Random selection and timing of output may be employed, such as to vary the testing patterns during repetitive tests.

Abstract: There is disclosed a system and method for implementing a control plane/data plane test to evaluate the performance of a device under test upon the occurrence of a critical event. The method may be performed by a network testing system.

Abstract: A method and apparatus for communicating over a network is provided. The method includes obtaining building block codes, where the building blocks codes are capable of being used together to provide an end-to-end service. The building block codes are sent to each appropriate building block controller, where each building block controller is associated with a corresponding network node. Upon receiving a first packet of a connection for the first end-to-end service, a determination as to which network nodes of the plurality of network nodes should be used as network hops for the connection, and as to, for each network node that should be used as a network hop for the connection, which building block codes should be used by the building block controller corresponding to the network node. These determinations are communicated to each of the appropriate building block controllers.

Abstract: An Access Gateway Management System (AGMS) allows telephone operating companies to transition their existing wireline customers over to Voice over the Internet Protocol (VoIP) technology without having to invest in new workflow processes, systems, or maintenance facilities by adapting the Operational Support Systems interfaces currently employed for managing legacy circuit-switched switching systems to manage Line Access Gateways (LAGs), which are the generic line termination systems employed in VoIP infrastructure. The AGMS also configures and adapts metallic loop test systems currently deployed for the purpose of routine maintenance and troubleshooting of subscriber lines terminating directly or indirectly (through access systems) on existing switching systems to continue to provide this functionality when the lines terminate on LAGs. Synchronization of the subtended LAGs is coordinated with the legacy network by the AGMS.

Abstract: Disclosed is a method for receiving, by a terminal, a paging message in a wireless communication system. A paging message reception method according to the present invention comprises receiving a paging message which includes task information from a base station, and performing at least one task among the initiation of a machine type communication (MTC) function, interruption of a machine type communication (MTC) function and a measurement report according to the task information included in the received paging message.

Abstract: Technology is generally described for computing paths between geographical localities. The technology can receive a request for a path between two or more geographical localities, and compute a path based at least on a popularity rating of intermediate geographical localities.

Abstract: A telephone system comprising switching circuitry configured for coupling a call to a telephone extension coupled to the system, voice processing circuitry configured for automatically interacting with the call, a microprocessor, a first data bus connected between the microprocessor and the switching circuitry, and a second data bus connected between the microprocessor and the voice processing circuitry.

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.

Abstract: A wireless mesh network system includes a plurality of wireless devices adapted to forward a message packet. Each of the wireless devices includes a transmitting unit, a receiving unit, a communications controller, and a RAM. Further, the communications controller controls such that an original source address contained in a message packet forwarded by a wireless device, which is an address of the wireless device that has firstly transmitted the message packet, and a packet number that identifies the message packet are stored in the RAM, and controls such that a message packet received is forwarded if information contained in the message packet received is not consistent with information of the original source address and the packet number stored in the RAM.

Abstract: According to one embodiment, allocating demand includes receiving a demand graph that describes demands of a network. One or more weights are calculated for each demand. The demands are allocated according to the weights of the demands to optimize optical line card sharing.

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.

Abstract: Presented are methods and apparatus for processing test traffic encapsulated within bidirectional subscriber connections on intermediate nodes. Test packet requests are generated by a test traffic controller and received at a node by an enhanced decapsulator, a decapsulator or at an ingress port. A tunnel header is extracted from the test packet requests and a determination is made as to whether the test packet request destination is for the receiving node or for another node. If the test packet request is for another node the test packet request is forwarded toward the destination node. If the test packet request is for the receiving node then a test packet reply is generated and the test packet reply is sent toward the test traffic controller.

Abstract: A route monitor control system includes a plurality of OAM cell handlers (OCHs); a plurality of virtual path handlers (VPHs); a plurality of virtual channel handlers (VCHs); trunks; and a control unit. The control unit issues an OAM (operation and maintenance) cell send instruction to a specific one of the plurality of OAM cell handlers, and carries out a loop back control to at least one of the virtual path handler, the virtual channel handler, and the trunk, which are associated with the specific OAM cell handler, as an object unit in response to the OAM cell send instruction. Also, when the specific OAM cell handler sends out an OAM cell from the specific OAM cell handler to the object unit in response to the OAM cell send instruction, the control unit determines a fault position based on returning or non-returning of the OAM cell from the object unit to the specific OAM cell handler.

Abstract: A system, method, and computer program product are provided for determining a hop count between network devices utilizing a binary search. In use, a hop count range is identified based on a maximum hop count value. Furthermore, a plurality of packets are sent from a source device to a destination device for determining a hop count between the source device and the destination device, each of the packets having a different hop count threshold configured based on a binary search applied to the hop count range.

Abstract: Systems and methods for use in communication between a client and a server, via a networking device, are provided. The method may include sending a request to establish a data connection from the client to the server via the networking device, setting a data connection keep-alive interval for the data connection to a predetermined safe value, and sending a request to establish a test connection between the client and the server. The method may further include determining an efficient keep-alive interval for communication between the client and server via the networking device, using the test connection, setting the data connection keep-alive interval to the efficient keep-alive interval determined using the test connection, and uploading the efficient keep-alive interval from the client to the server in an efficient keep-alive interval notification message, for communication to other clients connected to the server.

Abstract: Network elements, which are network nodes in a transmission network, implement a proprietary XML agent which supports an XML over TCP network management protocol. The protocol permits tunneling of proxy management traffic, with connection management support, to a privately addressed subtending network element. This tunneling is performed via a publicly addressable gateway network element device without the need for configuration at the element management system software application relative to the subtending network element.

Abstract: A system includes at least one adaptive filter coupled to a first communication channel and at least one other communications channel. The at least one adaptive filter includes at least one set of adaptive filter coefficients. A memory stores at least one predetermined set of filter coefficient thresholds. The filter coefficient thresholds may be indicative of channel faults, channel to channel faults or a length of the channel. A controller is configured to compare the set of filter coefficients to the predetermined set of filter coefficient thresholds. The controller is configured to determine the information about the channels based on compare results.