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| Number | Title | Issue Date |
| 8144601 | Fault detection method, communication system and label switching router A fault detection method, a communication system, and an LSR are provided herein to overcome the inability of performing BFD packet resolution fault detection for multiple nodes in the conventional art. The method includes: determining a hop count between a first no... | 03/27/2012 |
| 8094567 | Method for transferring test messages and network element device A method for transferring test messages includes a Network Element (NE) A and NE B negotiating and determining a logical channel type. The Link Management Protocol (LMP) entity of NE A constructs a test message packet which includes the local Ethernet data interface... | 01/10/2012 |
| 8085673 | Method and apparatus for generating bi-directional network traffic and collecting statistics on same A method and apparatus for testing network devices maintains state data in a memory corresponding to a current status for each one of a plurality of connections. Received and transmitted segment identifiers relate each received segment to one of the connections. Eac... | 12/27/2011 |
| 8085674 | Priority trace in data networks A diagnostic tool for identifying priority errors within a data network is realized using a priority trace data packet. The priority trace data packet is originated at an originating node of interest and terminated at a terminating node of interest. At various inter... | 12/27/2011 |
| 8064350 | Method and system for simplifying protocol analysis A system and method in accordance with exemplary embodiments may include receiving, from a user system, one or more protocol analysis request messages via a network, transmitting, to one or more multipurpose interface devices, one or more control signals based on th... | 11/22/2011 |
| 8054751 | Remote access link fault indication mechanism A network environment including a provider network coupled to a first customer network site via a first access link and to a second customer network site via a second access link. The provider network is operable with the IEEE 802.1ag standard for propagating a remo... | 11/08/2011 |
| 8040812 | Network outage assessment A system is provided for network outage assessment. An outage tool retrieves a scheduled site list from a network management interface for a data network. The scheduled site list specifies sites associated with the network management interface that are scheduled to ... | 10/18/2011 |
| 8018857 | Method for supporting SDH/SONET oamp on ethernet An Ethernet MAC OAMP Control sublayer is provided for supporting SDH/SONET OAMP standard functionality in Ethernet Networks. In accordance with one embodiment, an Ethernet MAC OAMP Control sublayer is provided for processing Ethernet MAC OAMP Control frames. The MAC... | 09/13/2011 |
| 8014296 | Method and apparatus for enabling LCAS-like feature through embedded software A technique controls the capacity of a virtual concatenation group (VCG) carried on a SONET path of a data network. Efficient control of VCG capacity is provided by emulating aspects of a Link Capacity Adjustment Scheme (LCAS) protocol in software. A hardware poller... | 09/06/2011 |
| 8014297 | Network test apparatus, network test method and network test program According to an aspect of an embodiment, an apparatus is transmitting/receiving an OAM frame containing kinds of tests indicating one or more tests for Ethernet-OAM to/from a relay apparatus, storing configuration information to generate a network configuration need... | 09/06/2011 |
| 7995483 | Simultaneously testing connectivity to multiple remote maintenance endpoints of the same maintenance association In general, techniques are described for simultaneously testing connectivity to same or different remote maintenance endpoints of the same maintenance association. Specifically, a network device may include a control unit that simultaneously executes both a first an... | 08/09/2011 |
| 7978614 | Techniques for detecting non-receipt of fault detection protocol packets Techniques that assist in processing of failure detection protocol (FDP) packets. Techniques are provided that assist a CPU of a network device in processing incoming FDP packets. In one embodiment, a module is provided in a network device for detecting and flagging... | 07/12/2011 |
| 7965646 | Wireless code-passing system for stateful connection monitoring A stateful connection is monitored between wireless communications devices. A first code packet is generated at a first wireless communications device. The first code packet is transmitted from the first wireless communications device to a second o wireless communic... | 06/21/2011 |
| 7961632 | Communication apparatus and OAM frame transmission method A disclosed communication apparatus of one embodiment of the present disclosure includes a transmitting unit including a counter for counting the number of transmitted data frames and indicating the counted number of the transmitted data frames as a counter value an... | 06/14/2011 |
| 7933210 | Network test apparatus, network test method and network test program According to an aspect of an embodiment, an apparatus is transmitting/receiving an OAM frame containing kinds of tests indicating one or more tests for Ethernet-OAM to/from a relay apparatus, storing configuration information to generate a network configuration need... | 04/26/2011 |
| 7903565 | Method of monitoring a tandem connection in a MPLS telecommunication network It is disclosed a method of monitoring, a Multi-Protocol Label Switching network, a tandem connection of a Label Switched Path. The tandem connection to be monitored has an input node and an output node. The method comprises the following steps: receiving a first Op... | 03/08/2011 |
| 7889665 | Bridge port MAC address discovery mechanism in ethernet networks Various exemplary embodiments are a method and of discovering medium access control (MAC) addresses in a network and a related access node including one or more of the following: receiving, at an access node, a diagnostic message from an operator, the diagnostic mes... | 02/15/2011 |
| 7855968 | Alarm indication and suppression (AIS) mechanism in an ethernet OAM network A system and method for propagating fault information in an Ethernet OAM network having multiple levels of OAM domains. An Alarm Indication and Suppression (AIS) frame is generated by a Maintenance Intermediate Point (MIP) node upon detecting a fault condition in a ... | 12/21/2010 |
| 7843838 | Communication network route tracing A method for tracing a communication route through a network coupling a first device with a second device is provided. A first signal is transferred from the first device to the second device to cause a plurality of intermediate devices to report first information c... | 11/30/2010 |
| 7835290 | Method for measuring end-to-end delay in asynchronous packet transfer network, and asynchronous packet transmitter and receiver Provided are a method for measuring an end-to-end delay, and asynchronous packet transmitter/receiver, capable of conveniently and exactly measuring a packet delay in an asynchronous packet transfer network in which a transfer priority is determined as in MPLS. The ... | 11/16/2010 |
| 7821949 | Forwarding plane data communications channel for ethernet transport networks Described is a process and system for providing an extensible forwarding plane data communications channel adapted to selectively support operations, administration and maintenance (OAM) activity within one or more different domains of an Ethernet transport network.... | 10/26/2010 |
| 7821948 | Network management system and method provisioning OAM support for multicast communications sessions A method for monitoring a point-to-multipoint unidirectional multicast connection via exchange of OAM messages is presented. The method includes retrieving the connection record of the multicast connection from a network management system repository and determining ... | 10/26/2010 |
| 7808914 | Method and apparatus for realizing the interworking of OAM function between the Ethernet and the MPLS network An apparatus and a method for realizing OAM function interworking between an Ethernet network and an MPLS network in network communication field. The method meets the challenge in realizing OAM functions when MPLS serves as a bearer network to bear Ethernet services... | 10/05/2010 |
| 7801049 | Method, system and node for implementing subnetwork connection protection in multi-protocol label switching network The embodiments of the present invention provide a method, a system and a node for implementing Subnetwork Connection Protection (SNCP) in a Multi-Protocol Label Switching (MPLS) network. The method includes: sending, by a first node of a subnetwork of the MPLS netw... | 09/21/2010 |
| 7768928 | Connectivity fault management (CFM) in networks with link aggregation group connections A maintenance entity for an Ethernet Connectivity Fault Management (CFM) domain. The maintenance entity comprises a port definer module and a connection which is connected to a group of aggregated link. The port definer module examines a designated link of the group... | 08/03/2010 |
| 7706290 | Object-based operation and maintenance (OAM) systems and related methods and computer program products Object-based operation and maintenance (OAM) systems and related methods and computer program products are disclosed. One exemplary system includes a computer comprising a memory. The computer is in communication with a network comprising a network-attached componen... | 04/27/2010 |
| 7693079 | Proactive repair process in the xDSL network (with a VDSL focus) A method for proactively managing a fault in a video and data network is provided. The method includes collecting network correlation data for the fault. Additionally, a physical connectivity test of the video and data network is automatically performed. Physical co... | 04/06/2010 |
| 7693078 | Method for supporting SDH/SONET OAMP on Ethernet An Ethernet MAC OAMP Control sublayer is provided for supporting SDH/SONET OAMP standard functionality in Ethernet Networks. In accordance with one embodiment, an Ethernet MAC OAMP Control sublayer is provided for processing Ethernet MAC OAMP Control frames. The MAC... | 04/06/2010 |
| 7688742 | System and method for monitoring end nodes using ethernet connectivity fault management (CFM) in an access network A system and method for monitoring end nodes using Ethernet Connectivity Fault Management (CFM) in an access network. In one embodiment, a broadband access server (BRAS) is operable to generate an Ethernet CFM frame that includes a query message with respect to a pa... | 03/30/2010 |
| 7675864 | Automated packet switch carrier health monitoring process A system, method and computer program product are provided for determining the status of a packet-switched network by a computing device monitoring components that comprise the packet-switched network including a call-server, one or more gate-keepers, a TDM voice ga... | 03/09/2010 |
| 7668106 | Network management system, and network management method To collectively manage user networks connected to a virtual private network (VPN) without such time and effort necessary for an operation management server to be ready for an expansion MIB for each of vendors. Provided is a network management system, including: a fi... | 02/23/2010 |
| 7583604 | Probe for measuring quality-of-service parameters in a telecommunication network A measuring probe, able to access data flows composed of packets transmitted along a path formed by a plurality of equipment in a telecommunication network, having a measurement module to perform measurements in accordance with the configuration data, a determinatio... | 09/01/2009 |
| 7535849 | Method for communication network performance analysis The present invention relates to a method for communication network parameter setting comprising the steps of a) acquiring and storing information related to a1) service requests issued by terminals attached to the network, a2) positions of the terminals, and a3) es... | 05/19/2009 |
| 7492719 | Method of controlling loop-back process in Ethernet passive optical network A method of controlling a loop-back process between a local device and a remote device in an Ethernet passive optical network simplifies the initiation and the termination processes for a loop-back process by avoiding the use of Operation, Administration and Mainten... | 02/17/2009 |
| 7489640 | Processor with continuity check cache A processor includes controller circuitry operative to control the performance of a continuity check for each of a plurality of flows of protocol data units (PDUs) received by the processor. The controller circuitry is further operative to control access to a set of... | 02/10/2009 |
| 7489641 | Data connection quality analysis apparatus and methods A test device enables DOCSIS link testing in a HFC network without requiring the CMTS or other router at the headend of the HFC network to respond to ICMP messages. The test device includes a test packet generator for generating test packets having a destination Int... | 02/10/2009 |
| 7436836 | Method and apparatus for detecting support for a protocol defining supplemental headers Various methods and systems for detecting whether a network device supports a protocol, which defines a supplemental header, are disclosed. One method involves detecting a value within a preamble generated by a sending device and verifying that a header format of a ... | 10/14/2008 |
| 7418203 | Diagnosis method for standby system of optical ring network An object of the invention is to provide a diagnosis method for standby systems in an optical ring network having a redundant configuration, which can confirm normal states of standby systems in all optical transmission apparatuses on the network, even during operat... | 08/26/2008 |
| 7392017 | Assessing wireless network quality A method of providing information indicative of network coverage by one or more wireless service providers in a geographic area may include obtaining, at an information provider, performance indicators for a plurality of accesses to the information provider by a plu... | 06/24/2008 |
| 7392301 | Method and apparatus for automated assistance in configuring customer premises equipment In one aspect of the invention, a method of providing automated assistance in configuring customer premises equipment for communication with another network element includes automatically identifying a virtual channel and/or a protocol valid for configuration with t... | 06/24/2008 |
