Abstract: A method and system for transmitting data corresponding to at least one endpoint device problem in a packet communications network is described. Specifically, an endpoint device detects at least one problem that pertains to the endpoint device. The endpoint device then generates data pertaining to the endpoint device problem. Lastly, the endpoint device then transmits the data detailing that endpoint device problem to the packet communications network.

Abstract: In a computer-displayed graph, indications of multiple attributes or states of an object represented by a node of the graph are displayed using a spotlight, in which attributes of the spotlight correspond to attributes of the object represented by the node. The attributes of the spotlight each correspond to an attribute of the object and may include the color, brightness, and size of the spotlight. The spotlight may be positioned with the node, including overlaying the spotlight on the node and positioning the spotlight relative to the node.

Abstract: A communication session between a first communication device and a second communication device is hosted in an Internet Protocol (IP) based packet data network. A contact server functions as a bridge service between the first communication device and the second communication device. A communication link between the first communication device and the contact server or the second communication device and the contact server is initially a voice-over IP (VoIP) communication link over a wireless data network comprised of a first packet data media stream. The contact server receives the first packet data media stream and at least one other packet data media stream from the first communication device and combines them into a single packet data media stream before transmitting the combined single packet data media stream to the second communication device.

Abstract: A method for operating a wireless mesh data network with multiple nodes, wherein data frames are transmitted from a source node via one or more intermediate nodes to a destination node, wherein the source node, the one or more intermediate nodes, and the destination node constitute network nodes of the data network, wherein during transmission of a data frame, at least some of the network nodes which receive the data frame, using a precursor list for the destination nodes which is assigned to the destination nodes of the data frame, check whether the network node sending the data frame is in the precursor list, and wherein in the case of a positive result, the data frame is transmitted to a further network node, and in the case of a negative result, the data frame is thrown out or processed by an error recovery routine.

Abstract: The present invention provides an address refreshing method and device of the Ethernet ring network, and the method comprises: when a current node state of each node in the Ethernet ring network is a protection state, if a failure of a first link in the Ethernet ring network disappears, transmitting a No Request (NR) protocol message indicating that the link failure disappears through node(s) connected with the first link; a node in the Ethernet ring network which receives the NR protocol message switching the node state of the node into a pending state; and when the current node state of each node in the Ethernet ring network is the pending state, if a link failure appears in the Ethernet ring network, transmitting a link failure notification (SF) protocol message through node(s) connected with the failed link; a node in the Ethernet ring network which receives the SF protocol message switching the node state of the node into the protection state, and refreshing an address forwarding table according to addre

Abstract: An example method includes monitoring a layer two network with a first network device that operates within the network. The method also includes discovering a second network device that operates within the network by receiving an extended continuity check message (CCM) transmitted from the second network device. The extended CCM transmitted from the second network device indicates to other network devices that a service instance is available on the second network device, and includes an indication of one or more network devices from which the second network device has received CCMs for the service instance. The method further includes determining that bidirectional connectivity exists between the first network device and the second network device when the indication includes the first network device as one of the network devices from which the second network device has received CCMs for the service instance.

Abstract: Example methods disclosed herein to reroute Internet Protocol traffic include, after detecting a defect in a first communication path for routing user traffic associated with a network user, causing a router to buffer the user traffic for a first time period having a first duration before causing the router to reroute the user traffic over a second communication path, the first duration based on a first threshold. Such example methods also include, after detecting correction of the defect, causing the router to continue to route the user traffic over the second communication path for a second time period having a second duration before causing the router to revert to routing the user traffic over the first communication path, the second duration based on a second threshold, the first and second thresholds being adjustable based on a number of cycles of network defects and network corrections counted within a tracking period.

Abstract: Methods, traffic receivers, and computer readable storage media for testing network connections are disclosed. A traffic receiver coupled to a network under test may receive a packet. A packet group identification number (PGID and a sequence number (SN) may be extracted from the received packet. Data associated with the PGID may be retrieved from a memory, the data including a next expected sequence number (NESN), a start of run (SOR), a number of in-order packets (NIO) and a number of duplicate packets (NDP). When SN is equal to NESN, NESN and NIO may be incremented. When SN is less than NESN and SN is greater than or equal to SOR, NDP may be incremented. When SN is greater than NESN, SOR may be set to SN, NESN may be set to SN plus one, and NIO maybe incremented. Updated data may be stored in the memory.

Abstract: An endpoint integrity system controls access to resources of a protected network for endpoint devices attempting to access the protected network. The system may include a number of evaluation modules that communicate with an endpoint device. The evaluation modules generate policy results for the endpoint device, in which each of the policy results assume one of three or more states, called a multi-state policy result. The multi-state policy results are combined to produce a combined Boolean policy result.

Abstract: A control system and method thereof is provided. The control system includes switch devices that operate on supplied power, each switch device includes multiple switch-side ports and a communication processing unit for relaying data, input to any of the switch-side ports on a basis of destination information set for the data, a relay device that includes first ports coupled to corresponding switch-side ports of the switch devices and second ports selectively coupled to the first ports and that relays the data, input to any of the second ports, to any of the first ports, and a control device that controls the switch devices and the relay device, where the control device includes a port monitoring unit, a port-assignment control unit, and a power control unit.

Abstract: A method, apparatus, and machine readable storage medium is disclosed for establishing a test protocol processor which autonomously intercepts success path protocol messages at a network element port buffer and substitutes a corresponding failure path messages to simulate the introduction of unexpected protocol messages into the protocol message flow from an external source to the network element under test. Subsequent to intercepting messages, the test protocol processor may perform one or more of several actions according to the results of statistical calculations. These actions include allowing the message to drop, replacing the message after a delay, replacing the message after altering the payload of the message, and replacing the message after altering the message type. The disclosed autonomous self disrupting network element is particularly useful for providing a means to perform in situ field testing of network performance indicators under desired statistical conditions.

Abstract: A method includes establishing a first communication path from an access point to a service assurance platform via a first network. The access point is configured to provide a wireless local area network. The method includes establishing a second communication path from the access point to the service assurance platform via a mobile device coupled to a second network. The second communication path is distinct from the first communication path. The method includes initiating transmission of a message from the access point to the service assurance platform via the mobile device. The message is associated with an issue detected by a device coupled to the wireless local area network.

Abstract: A system and method for communicating failures in a metro Ethernet network (MEN). Packets are communicated through multiple maintenance entities. A determination is made that there is a failure between or at one of the multiple maintenance entities. An alarm is generated at a maintenance entity nearest the failure in response to determining there is a failure. The alarm indicates a location of the failure. The alarm is communicated back through one or more of the multiple maintenance entities to a maintenance end point. The alarm is routed at least two a communications service provider determined to be associated with the failure.

Abstract: Data communications are effected in a network having a plurality of different network devices, at least two of the network devices connected to a common wired network link and in which each network device is assigned to communicate during different time slots within a communication cycle. Stored communication protocol data is used to evaluate received configuration data specifying a communication schedule. An output indicative of a non-compliant communication is generated if the evaluation indicates that the communication schedule fails to comply with the protocol data. If the communication schedule complies with the stored communication protocol data, the communication schedule is stored and used to communicate data between the network devices, via a central communication circuit according to time slots specified in the evaluated communication schedule.

Abstract: One preferred embodiment of the present invention provides systems and methods for analyzing the delivery performance of newsgroup services. Briefly described, in architecture, one embodiment, among others, includes a newsgroup evaluation system configured to determine a delivery rate for a newsgroup server. In other embodiments, methods and systems are provided for analyzing completion and retention for newsgroup services.

Abstract: Systems and methods for encoding/decoding a data word using an 8b/9b encoding scheme that eliminates two-aggressor crosstalk are disclosed. The 8b/9b encoding scheme enables a data word to be encoded using code words. Each of the valid code words does not include any three consecutive bits having a logic level of logic-high (i.e., ‘1’), and represent transition vectors for consecutive symbols transmitted over the high speed parallel bus. An encoder and corresponding decoder are disclosed for implementing the 8b/9b encoding scheme. In one embodiment, the encoder/decoder implements a modified Fibonacci sequence algorithm. In another embodiment, the encoder/decoder implements a look-up table.

Abstract: A network switch automatically detects undesired network traffic and mirrors the undesired traffic to a security management device. The security management device determines the source of the undesired traffic and redirects traffic from the source to itself. The security management device also automatically sends a policy to a switch to block traffic from the source.

Abstract: A Maintenance Association and corresponding method for configuring maintenance entities for Ethernet Tree (E-Tree) type service instances. A root MEP communicates with each of a plurality of leaf MEPs. Remote MEP state machine instances are activated within the root MEP for each of the plurality of leaf MEPs. Within each leaf MEP, however, only the remote MEP state machine instance for the root MEP is activated while leaving the remote MEP state machine instances for all other leaf MEPs in an inactive state in which Connectivity Check Messages (CCMs) are not exchanged.

Abstract: A system and method for guiding server chassis enumeration in a computer system are disclosed. One embodiment provides a method of connecting a plurality of computer server chassis configured as a plurality of nodes. For each cable connection between any two server chassis, a port on the first of the two server chassis to which a first end of a cable is connected is identified, and a port on the second server chassis to which a second end of the cable is connected is identified. The node containing second server chassis is uniquely designated by the port designator on the first server chassis, and the node containing the first server chassis is uniquely designated by the port designator on the second server chassis. An electronic alert is generated in response to any conflicting node designator.

Abstract: In one embodiment, a method includes sending a request to one or more distributed fabric protocol (DFP) system members in order to retrieve one or more events from the one or more DFP system members, wherein the one or more events are received as data encapsulated in a packet(s), receiving one or more acknowledgements to the request from the one or more DFP system members at a local network switch of the DFP system master, upon receipt of the at least one packet: decoding the at least one packet to retrieve details of the one or more events using a dedicated processor of the DFP system master, creating and sending a message signaled interrupt (MSI) comprising the details of the one or more events to a local processor of the DFP system master using the dedicated processor, and reading the MSI using the local processor of the DFP system master.

Abstract: An error detection device includes a control unit configured to identify two links that connects a relay communication device to two communication devices as a link pair, identify, from pluralities of inspection devices under the respective two links, a number of inspection devices corresponding to the number N of links where communication errors simultaneously occur (N is an integer of 1 or more) plus 1, determine (N+1) number of inspection flows between the (N+1) number of inspection device pairs, and generate inspection coverage information that includes the determined inspection flows. The error detection device includes a storage unit that stores the inspection coverage information, and a communication unit that sends the inspection coverage information to one device of the inspection device pairs.

Abstract: A mobile wireless communication device also has at least one wired communication port. Enhanced security is achieved by permitting the device to automatically disable one or more wireless ports when connected to a wired port. Specific combinations/permutations of such automatic control may be effected by use of an IT Policy also resident on the device.

Abstract: A set of one or more receiver parameters is adjusted. It is determined whether to adjust the set of receiver parameters. In the event it is determined to adjust the set of receiver parameters, a new set of values is generated for the set of receiver parameters using a cost function (where the cost function does not assume a noise signal in a receive signal to have a particular statistical distribution) and the set of receiver parameters is changed to have the new set of values.

Abstract: A method and a system for preventing a network storm from presenting in a multi-ring Ethernet, the method comprises: when a link in the multi-ring Ethernet is failed, at most one ring protecting link is unblocked, the ring protecting link and the failed link being in a same logic area. Wherein each link in the multi-ring Ethernet belongs uniquely to one logic area, when a link in the multi-ring Ethernet is failed, a master node of a logic area to which the failed link belongs unblocks a ring protecting link; or each link in the multi-ring Ethernet respectively belongs to one or more logic areas, each logic area is set with a priority, when a link in the multi-ring Ethernet is failed, the ring protecting link of one logic area which contains the failed link and has a highest priority is unblocked by the master node of the logic area.

Abstract: Systems, methods and apparatus are described for testing a data connection provided over a power supply line. A testing apparatus is coupled to a socket of the power supply line. The AC power supply line communicatively couples the testing apparatus to a communication device or another testing apparatus. The testing apparatus identifies the signal strengths of signals received by the testing apparatus and identifies the signal strengths of signals received by the communication device. The testing apparatus outputs an indicator of the first signal strength and the second signal strength to a user and this information may be utilized to detect noise or other problems in the data connection provided over the AC power supply line.

Abstract: The invention herein provides an apparatus and a method for automatically configuring an IEEE 802.1x client terminal to provide limited access in a WLAN environment, specifically utilizing the access point to filter traffic associated with the limited access so as to redirect the client terminal's HTTP request to a designated local web server. The web server responds to the client terminal by requesting information required to establish an authorized communication. Thereafter the client terminal provides information required to establish an authorized communication. In the course of the communication the web server sends information such as transmission rates, new user account creation information, authentication method selection, and access user terms and conditions of acceptance, all typically required to establish an authorized access. The client responds with information, required to establish an authorized communication.

Abstract: A network communication device for generating dying gasp signals includes a voltage detection circuit, a charging and discharging circuit, a power supply circuit, a central processing unit (CPU), a load circuit, an over-heating detection circuit, and an over-heating protection circuit. The CPU includes a dying gasp detection pin connected to the voltage detection circuit to retrieve a detected voltage of an external power supply, and determines whether the external power supply is off according to the detected voltage, and generates dying gasp signals upon the condition that the external power supply is off. The over-heating protection circuit changes voltage of the dying gasp detection pin of the CPU to make the CPU to generate the dying gasp signals and to turn off the load circuit and the power supply circuit upon the condition that the over-heating detection circuit determines that the network communication device overheats.

Abstract: A wireless router establishes a Wireless Local Area Network (WLAN) that supports wireless communications within a WLAN service area. The wireless router establishes broadband communications via a broadband connection with a Voice over IP (VoIP) service accumulator. The wireless router receives a query from the VoIP service accumulator requesting information regarding the prior servicing of, or ability to service, VoIP calls by the wireless router. In response, the VoIP service accumulator receives information regarding the prior servicing of, or ability to service, VoIP calls. The wireless router and the VoIP service accumulator subsequently service VoIP calls within the WLAN based upon the information regarding the prior servicing of, or ability to service, VoIP calls by the wireless router.

Abstract: A method includes transmitting a packet from a first wireless device to a second wireless device, where data within the packet is encoded and a signal representing the packet is modulated in accordance with a modulation and coding scheme (MCS). The method also includes, responsive to receiving an acknowledgement packet that includes a MCS change indicator from the second wireless device via a wireless local area network (WLAN) in response to transmitting the packet, maintaining the MCS when the MCS change indicator has a first value and incrementing the MCS when the MCS has a second value.

Abstract: A method of tracing Ethernet frame delay between network devices is described that includes outputting a delay trace message Ethernet frame to a target MEP network device. The method also includes receiving one or more delay trace response Ethernet frames from one or more MEG intermediate point (MIP) network devices positioned along a network path from the originating MEP network device to the target MEP network device. The method also includes receiving a delay trace response Ethernet frame from the target MEP network device. In some embodiments, the method includes calculating delay associated with portions of the network between each of the network devices using the received responses.

Abstract: An Ethernet Ring Protection (ERP) method and the corresponding apparatus and communication equipment are disclosed. The method includes: when a link on an Ethernet ring network is faulty, judging whether the faulty link is a link where the normally blocked port is located; sending a control message which carries first indication information if the faulty link is the link where the normally blocked port is located; the ring node avoids clearing of a forwarding table after receiving the control message which carries the first indication information; sending the control message which carries second indication information if the faulty link is not the link where the normally blocked port is located; and the ring node clears the forwarding table after receiving the control message which carries the second indication information.

Abstract: Systems and methods of multicast configuration are provided. A particular method includes detecting a failure in the data network at a first node of a data network. The method also includes determining an alternate route from the first node to a data source of the data network. The alternate route includes a second node as an upstream node. The method further includes determining whether the alternate route would create a loop in the data network. The method includes setting a state of the first node to a waiting-to-join the second node state when the alternate route would create a loop.

Abstract: This invention related to a bandwidth estimation method which is easily implementable on network nodes and enables to be made better routing decisions (for example the link with higher residual bandwidth should be favored in routing decisions) and/or estimates the flow admission control (for example accept a new flow only if there is enough available path residual bandwidth) by enabling estimation of availability of the communication capacity estimates.

Abstract: A communication system, information storage device, management device, and terminal device which enable information transmission which takes into consideration the circumstances on the receiving side, are provided. An external equipment 9 transmits to a commanding device 4 service information, indicating the type of service which it itself provides and the service execution priority or the service state. The commanding device 4 stores the received service information, and transmits the service information to an image capture device 1. The image capture device 1 selects the external equipment 9 as the transmission destination for content information based on the received service information, and transmits the content information.

Abstract: This invention enables an abnormality analysis to be easily and reliably performed in the FA system of the EtherCAT (registered trademark). A controller has a protocol monitor function of operating in a monitor system program, and constantly monitors data communicated with a remote device. The controller has an abnormality diagnosis function of detecting abnormality, and thus holds the data monitored immediately before when abnormality is detected. As the protocol monitor function is incorporated, a protocol monitor does not need to be newly plugged into the network as an external device after the occurrence of abnormality, and the data that becomes the cause can be held from the abnormality that occurred first by monitoring from the beginning of the operation of the system and can be used for analysis.

Abstract: Disclosed herein are systems, methods, and computer-readable storage media for analyzing packet flows and generating an alarm and for active testing of a network to localize problems. The system analyzes packet flows for bitstreams associated with a network node in order to compute a measure of protection that a queue of the network node gives to a high-priority one of the bitstreams relative to a low-priority one of the bitstreams, and uses the measure of protection to determine whether the network node is a source of a protection error with respect to priority markings for packets flowing through the network node, and generates an alarm upon determining that the network node is a source of a protection error with respect to the priority markings for the packets flowing through the network node.

Abstract: In an access gateway (AGW) comprising a C-AGW for handling control messages and a plurality of U-AGWs for handling data packets, when a tunnel setup request is issued from one of base stations to hand over a mobile station, the C-AGW selects a new U-AGW being in the lowest load status out of the U-AGWs, estimates the load status of the new U-AGW in the case of changing the tunnel endpoint for the mobile station from a current U-AGW to the new U-AGW. The C-AGW designates the new U-AGW as the tunnel endpoint for the mobile station if the estimated load status satisfies a predetermined condition, but designates the current U-AGW as the tunnel endpoint if the estimated load status does not satisfy the predetermined condition.

Abstract: In one embodiment, a method comprises receiving notification of a cable modem operational issue for a cable modem and establishing layer-2 logging communications with the cable modem. The method comprises receiving a message from the cable modem, the message generated by the cable modem in response to the operational issue and indicating the operational issue associated with the cable modem.

Abstract: A method and apparatus for performing device authentication and user authentication in a mobile communication network are provided. A connection is established between an MS and an SRNC that controls communications of the MS through a BS. The SRNC receives a D-MSK for device authentication of the MS from an AAA server that has completed an EAP negotiation with the MS and stores the D-MSK by the SRNC, when the BS triggers an EAP authentication after the connection establishment. The SRNC receives an R-MSK from an AG and stores the R-MSK after the connection establishment. The R-MSK is generated using a U-MSK for user authentication of the MS received from the AAA server by the AG. The SRNC generates a PMK for use during a session using at least one of the D-MSK and the R-MSK, and one of the BS and the SRNC generate a key set using the PMK, for use in at least one of data encryption, data integrity check, and session management during the session.

Abstract: A system and techniques to increase the redundancy (i.e., physical diversity and bandwidth) available to an IP network, thereby increasing the failure processing capability of IP networks. The techniques include pooling the resources of multiple networks together for mutual backup purposes to improve network reliability and employing methods to efficiently utilize both the intradomain and the interdomain redundancies provided by networks at low cost.

Abstract: Serial networking dedicated fiber optic inflight entertainment (IFE) systems, methods therefor and components thereof, that exhibit improved configuration and failover attributes through implementation of novel network configuration protocols. In some aspects of the invention, such an IFE system comprises a plurality of head end line replaceable units (HE-LRUs) and a plurality of serial networking line replaceable units (SN-LRUs), wherein each of the SN-LRUs individually detects that a closed system network has been formed between the plurality of HE-LRUs and the plurality of SN-LRUs based on a plurality of packets sourced by at least one of the HE-LRUs and received on a plurality of ports of each of the SN-LRUs, and wherein in response to detecting that the closed system network has been formed one of the SN-LRUs blocks one of its ports based on further detecting that the SN-LRU is a middle SN-LRU.

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: In one or more embodiments, one or more methods and/or systems described can perform establishing communication with a wireless access point via a mobile device coupled to a first network; receiving at least one message via the mobile device; determining at least one issue using the at least one message; isolating the at least one issue; and determining at least one resolution to the at least one issue. In one or more embodiments, isolating the at least one issue includes determining a side of a demarcation point that is associated with the at least one issue and/or determining at least one device associated with the at least one issue. For example, the at least one device can include the wireless access point, a network device used in providing communication to the wireless access point via a second network, or a device coupled to the wireless access point.

Abstract: The present invention provides a method, test-bed and computer program product for testing an application installed on a wireless communication device. The wireless communication device communicates one or more messages wirelessly to a server through a test-bed. The test-bed is connected with the server and provides one or more testing parameters for the one or more messages. A tester, testing the application, assigns a probability to the one or more messages. Further, the tester assigns a probability to the one or more testing parameters. Thereafter, the messages are re-communicated between the server and wireless communication device through the test-bed. Subsequently, the one or more messages are identified by the test-bed and one or more wireless network conditions are emulated based on the probabilities assigned to the one or more messages and the one or more testing parameters.

Abstract: Methods, apparatus and articles of manufacture for hierarchical anomaly localization and prioritization are disclosed. An example method disclosed herein comprises obtaining reported status for a plurality of nodes of a hierarchical topology, the reported status for a particular node being at least one of normal, abnormal or indeterminate, and determining a subset of root cause abnormal nodes, a root cause abnormal node included in the subset of root cause abnormal nodes having a total number of abnormal direct descendent nodes and indeterminate direct descendent nodes that is greater than a number of normal direct descendent nodes of the root cause abnormal node.

Abstract: A system and method for integrated thermal monitoring in Power over Ethernet (PoE) applications. Headroom in a particular cable installation is identified using ambient temperature measurement alone or in combination with determined cable characteristics. In calculating an amount of headroom for a particular cable installation, the current capable of being carried over the cable would not be limited by worst-case cable assumptions.

Abstract: When a service providing device which provides a service to a mobile communication terminal has entered a service stop state, a managing device connected to the service providing device instructs service providing devices other than the service providing device which has entered the service stop state, to release a resource of a mobile communication terminal to which a service has been provided by the service providing device which has entered the service stop state.

Abstract: A switchgear assembly provides on-board documentation and includes a switchgear adapted to distribute electrical power to a plurality of loads. An industrial computer includes storage, a web server service and a wireless broadcasting device. The storage stores switchgear specific documentation. A mobile computing device wirelessly communicates with the industrial computer through the wireless broadcasting device. The mobile computing device includes a web browser and the documentation is provided to the mobile computing device by the web server service.

Abstract: An endpoint integrity system controls access to resources of a protected network for endpoint devices attempting to access the protected network. The system may include a number of evaluation modules that communicate with an endpoint device. The evaluation modules generate policy results for the endpoint device, in which each of the policy results assume one of three or more states, called a multi-state policy result. The multi-state policy results are combined to produce a combined Boolean policy result.

Abstract: A technique for self-testing of services in an access point of a communication network includes providing a table that has a mapping between a service test, packets to be sent for testing, and packets that should be received in response to the testing, emulating and marking the test packets to be sent, placing the marked test packets in an Rx queue, processing the test packets normally by the access point to provide response packets and marking these response packets, delivering the marked response packets to a Rx queue, retrieving the marked response packets from the Rx queue, and comparing the service test response packets to the list of packets that should have been received in the response to the testing in order to validate that service on the access point.