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| Number | Title | Issue Date |
| 8050180 | Network path tracing method Systems and methods for gathering troubleshooting information through one or more networks are disclosed. In one embodiment, the method comprises a switch port configured to receive a frame that has information added by another switch. As the frame traverses the net... | 11/01/2011 |
| 8045477 | Smart protection escalation mechanism prevention Techniques are provided for detecting at a controller associated with a physical layer of a network an occurrence of a failure within the physical layer of the network. In response to detecting the failure, the controller sends messages to at least first and second ... | 10/25/2011 |
| 8045476 | Apparatus and method for managing a network A system that incorporates teachings of the present disclosure may include, for example, a server having a controller to receive information from a set top box that is associated with an undesired condition being experienced by a user of the set top box where the in... | 10/25/2011 |
| 8040813 | Apparatus and method for reduced loading of signal transmission elements An apparatus is provided which includes a common signal node operable to conduct a first signal, a first circuit coupled to the common signal node to utilize the first signal and a signal-handling element coupled to the common signal node. The signal-handling elemen... | 10/18/2011 |
| 8036133 | Efficient techniques for error detection and authentication in wireless networks Various example embodiments are disclosed relating to efficient techniques for error detection and authentication in wireless networks. For example, according to an example embodiment, an apparatus adapted for wireless communication in a wireless network may include... | 10/11/2011 |
| 8036134 | Disabled state and state signaling for link aggregation A device enables a disabled timer state for a link aggregation group (LAG) link if a disabled timer condition is determined for the LAG link, and enables a disabled state for the LAG link if a disabled condition is determined for the LAG link in the disabled timer s... | 10/11/2011 |
| 8036132 | Systems, devices, and methods for determining network failures Certain exemplary embodiments comprise a method, which can comprise automatically generating a trouble ticket responsive to a determined failure of one or more elements of a management Permanent Virtual Circuit (PVC). The management PVC can be established between a ... | 10/11/2011 |
| 8023417 | Failover mechanisms in RDMA operations In remote direct memory access transfers in a multinode data processing system in which the nodes communicate with one another through communication adapters coupled to a switch or network, failures in the nodes or in the communication adapters can produce the pheno... | 09/20/2011 |
| 8018858 | IMS reregistration method and system therefor A method and system in which upon occurrence of a P-CSCF failure, a network sends an IMS reregistration request message to a UE. An S-CSCF or an AS monitors a P-CSCF to detect occurrence of a failure in the P-CSCF. Upon detecting the occurrence of a P-CSCF failure, ... | 09/13/2011 |
| 8018859 | Method and apparatus for asynchronous alarm correlation A method and apparatus for providing asynchronous alarm correlation in packet networks are disclosed. For example, the method receives a trigger, and performs an asynchronous correlation of at least one root cause alarm with at least one symptom alarm. ... | 09/13/2011 |
| 8014298 | Delayed service restoration A communication network comprises a service network configured to provide a service over access provided by an access network, and a first access system configured to access the service over the access provided by the access network, detect a loss of the access, mon... | 09/06/2011 |
| 8014301 | System and method for providing network route redundancy across layer 2 devices Systems and methods are described for providing network route redundancy through Layer 2 devices, such as a loop free Layer 2 network having a plurality of switching devices. A virtual switch is coupled to the loop free Layer 2 network, the virtual switch having two... | 09/06/2011 |
| 8014302 | Communication node, communication method, and computer program A communication node includes: a routing information storing unit configured to store, as routing information, node information indicating a succeeding node and a preceding node in a ring network using a distributed hash table; and a routing information updating uni... | 09/06/2011 |
| 8014300 | Resource state monitoring method, device and communication network A resource state monitoring method, device and communication network are provided. The method includes: acquiring network event state information of a node in a network running process, detecting a data plane resource state of the node and a control plane resource s... | 09/06/2011 |
| 8014303 | Systems and methods for interfacing with network information collection devices A network device may include logic configured to receive a problem report from a second network device, where the problem report includes event data, determine at least one of an action to perform or whether reconfiguration information is associated with the event d... | 09/06/2011 |
| 8014299 | Method and apparatus for detecting forwarding loops The invention includes a method and apparatus for detecting a forwarding loop at a network element. The method includes determining whether a received message was previously received by the first network element, and, if the received message was previously received,... | 09/06/2011 |
| 7995486 | Method and apparatus for graphically displaying call signaling flows in a network A method and system for graphically displaying call signaling flows for a communications network is described. In one example, a call flow alarm indicating an improper call signaling flow for a call is received. A respective projected call signaling flow associated ... | 08/09/2011 |
| 7995484 | Communication apparatus, communication state detection method and communication state detection program A communication apparatus including a network controller configured to control communication connection to a different apparatus; and a main controller configured to control state detection of the network controller and data communication with the different apparatu... | 08/09/2011 |
| 7995485 | Method and apparatus for providing automated diagnostics of networks A method and system for providing automated diagnostics of networks using multiple physical channels are disclosed. For example, the method receives a ticket indicating a problem and attempts to identify at least one physical channel of the network that is a potenti... | 08/09/2011 |
| 7990880 | Detector and method for detecting abnormality in time synchronization A transmitting and receiving section transmits data to which a time measured in a first device is attached, from the first device through a communication line, and receives the data in a second device. A communication abnormality detecting section detects an abnorma... | 08/02/2011 |
| 7990879 | Method, apparatus, system, and computer program product for interruption-free conference calling The present invention relates to instability problems in circuit switched conferencing, and provides a method for establishing a backup “voice only” telephony link in parallel with a H.320 conference link. The two links between the calling parties is handled as ... | 08/02/2011 |
| 7983174 | Method and apparatus for diagnosing a fault in a network path A method of diagnosing a fault in a network path comprises the steps, performed at a diagnosing node, of initiating a path discovery test. The diagnosing node receives at least one path discovery test response and identifies the diagnosable node on the network path ... | 07/19/2011 |
| 7983175 | System and method for detecting a network failure A method and system detect a failed communication transmission that fails to reach a recipient after attempting to be transmitted from a sender to the recipient over a communication path. Upon detection of the failed communication, the method initiates a first inqui... | 07/19/2011 |
| 7983173 | System and method for detecting link failures A system and method monitors links in a computer network and rapidly detects failures of such links. Network entities disposed at opposite ends of a link are provided with failure detection engines that signal their presence to each other. Thereafter, each failure d... | 07/19/2011 |
| 7978615 | Method of operating a network Techniques are provided for operating a network where router devices forward received data packets towards a destination node. Each router maintains a routing table, indicating the next hop to choose in respect of different ultimate destinations m accordance with a ... | 07/12/2011 |
| 7978616 | Method for transmitting PDCP status report A method of transmitting PDCP (Packet Data Convergence Protocol) status reports, is performed by a mobile terminal by receiving, from an upper layer, a request for PDCP (Packet Data Convergence Protocol) re-establishment; detecting whether there are any out-of-seque... | 07/12/2011 |
| 7969895 | Switch apparatus and network system A switch apparatus providing with a loop detection function sets a port identification to a port which activates the loop detection function, only receives the loop detection frame by a high-order port in the switch apparatus connected with a backbone network or a h... | 06/28/2011 |
| 7969894 | System and method for dead gateway detection A system and method for detecting a next-hop dead gateway is disclosed. In one embodiment, a method for detecting the next-hop dead gateway includes sending an Internet Protocol (IP) packet by a host to a next-hop gateway associated with the host, receiving the IP p... | 06/28/2011 |
| 7961633 | Method and system for real time detection of threats in high volume data streams A high speed detection system and method capable of generating audits of investigable patterns from log data using techniques for grouping and filtering the data so as to create vectors of patterns which can be then further analyzed by applying conditional filters t... | 06/14/2011 |
| 7957296 | Apparatus for and method of detecting loss of signal in a radio frequency cable A novel apparatus and method of detecting loss of signal events in RF cable. The loss of signal may be caused malicious cable cuts, inadvertent disconnects, loss of signal from the cable head-end or for any other reason. The invention is particular applicable to use... | 06/07/2011 |
| 7957297 | Termination message for wireless wide area network routers A wireless router device is configured to detect a fault that would prohibit wireless communications between the router and a wireless wide area network. A message, referred to herein as a termination message, is then generated. The termination message contains info... | 06/07/2011 |
| 7957298 | Method for detecting failures of random access procedures A method of performing a random access channel (RACH) procedure between a mobile terminal and a network includes the steps of detecting whether a random access response (RAR) is received from the network within a certain time period, the RAR including information ab... | 06/07/2011 |
| 7953014 | FPGA-based network device testing equipment for high load testing Network device testing equipment capable of testing network devices using small size packets and for a transferring ability and a filtering ability at a media speed is described. A configuration is adopted in which a Field Programmable Gate Array (FPGA) included in ... | 05/31/2011 |
| 7953016 | Method and system for telecommunication apparatus fast fault notification A method and system for containing a fault in a network node. A loss of all remaining communication links from a node is detected. A time duration from the loss of a first remaining communication link to the loss of a last remaining communication link is determined.... | 05/31/2011 |
| 7953015 | Method for ensuring reliability in network A method for ensuring reliability in a network is disclosed, including: distributing, based on service flow, services to multiple home functions entities of the coupled function entity, where the multiple home function entities have identical functional characterist... | 05/31/2011 |
| 7940677 | Architecture for optical metro ethernet service level agreement (SLA) management A system for managing one or more service level agreements associated with a switched metro Ethernet network is disclosed and manages one or more service level agreements associated with a switched metro Ethernet network. The system also includes a service level agr... | 05/10/2011 |
| 7940676 | Methods and systems for providing end-to-end testing of an IP-enabled network Systems and methods are disclosed for providing network testing. The disclosed systems and methods may include connecting to at least one element within a network. Furthermore, the disclosed systems and methods may include performing a test on the network through at... | 05/10/2011 |
| 7940678 | Method for triggering failure detection in bidirectional forwarding detection A method for failure detection on a bidirectional forwarding link mainly includes: sending, by one side of a BFD session, a BFD packet to the opposite side of the BFD session, and detecting a BFD packet sent by the opposite side, and starting, by the local side of t... | 05/10/2011 |
| 7940679 | Power outage management and power support restoration for devices in a wireless network Techniques for power outage management and power support restoration for devices in a wireless network are disclosed herein. Such a wireless network may include a number of bi-directional nodes in bi-directional wireless communication with one or more central nodes.... | 05/10/2011 |
| 7936683 | System and method of monitoring network performance A method of monitoring network performance is disclosed and includes receiving a session initiation protocol (SIP) response message from one of a plurality of serving-call session control function (S-CSCF) systems at a centralized error monitoring server of an Inter... | 05/03/2011 |
