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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 8174965 | Service management in a network In a network (10) providing a service to a client of a terminal (T1) and comprising at lease first and second session border controllers (A, B), at least one identical address (@Ain) is allocated to the first and second session border controllers. A ro... | 05/08/2012 |
| 8165014 | Methods and systems for using managed port circuitry to map connections among structured cabling apparatus and network devices A managed port circuit includes a detection circuit that is disposed in a communication channel between a first local port and a second local port and a controller that is coupled to the detection circuit and is operable to configure the detection circuit in a detec... | 04/24/2012 |
| 8165013 | Networked computer with gateway selection A networked computer system in which a gateway is selected for efficient transmission over a network using a layered protocol. When a transmission over the network fails, information at multiple protocol layers indicates the usability of the gateway through which th... | 04/24/2012 |
| 8144575 | Redundant pseudowires for border gateway patrol-based virtual private local area network service multi-homing environments A method performed by a provider edge device includes generating pseudo-wire tables based on virtual private local area network service advertisements from other provider edge devices, where the provider edge device services customer edge devices, and establishing p... | 03/27/2012 |
| 8144574 | Distributed control packet processing Packet switch operating methods and packet switches, using first processing circuitry of the packet switch, specify a configuration for a control packet processing procedure implemented by different second processing circuitry of the packet switch, communicate the c... | 03/27/2012 |
| 8134917 | Automatic protection switching using link-level redundancy supporting multi-protocol label switching A computer network has a plurality of routers that deliver data packets to the network via a plurality of links. At least one router provides automatic protection switching in the event of a link failure. The at least one router includes a plurality of data interfac... | 03/13/2012 |
| 8130637 | Method and apparatus for detecting MPLS network failures Recovery time upon the failure of a link or switching system in an asynchronous data network can be minimized if downstream data switches provide upstream messages indicating to upstream switching system that the downstream traffic arrived in tact and was properly h... | 03/06/2012 |
| 8130636 | Communication control system A communication control system is provided that performs communications satisfying a request for industrial applications and a request for open protocol communications at the same time. To this end, in the invention, a high-priority communication section performing ... | 03/06/2012 |
| 8121025 | Method and system for switching multicast traffic and router A method for switching multicast traffic includes: entering, by a second router, a waiting state after receiving a packet indicative of recovery of a first router; and deleting, by the second router, the egress interface of MFIB entries on the second router after re... | 02/21/2012 |
| 8111612 | Link-based recovery with demand granularity in mesh networks A protected communication network utilizes a link-based recovery strategy that supports independent recovery paths for individual demands, where each link includes one or more lines and each line can support one or more demands. Failure of one or more—or even all... | 02/07/2012 |
| 8111613 | In-layer ethernet p-cycle protection scheme A method of implementing a p-cycle protection scheme for a communications network comprising a plurality of nodes and interconnecting communications links along which Ethernet traffic is forwarded in a connection-oriented manner. The method comprises for each said E... | 02/07/2012 |
| 8107361 | Simultaneous active registration in a SIP survivable network configuration Provided are methods, devices, and systems for maintaining a SIP survivable network. The present invention is adapted to allow SIP endpoints or User Agents to discover and select the controller or controllers that the SIP endpoint will register with. Selection of th... | 01/31/2012 |
| 8098575 | Packet relay method and device A packet relay method and device in which even in the presence of a relay device between transmitting and receiving devices, a normality of a protection route can be surely confirmed is provided; A specific source address or destination address are registered, and w... | 01/17/2012 |
| 8085655 | Failure tolerant high density dial router A Fault Tolerant Dial Router (FTDR) includes redundant subsystem resources that operate independently of telephone line interface connections. The redundant resources are switched active when a failure is detected in an activated dial router subsystem. Switching out... | 12/27/2011 |
| 8077603 | IEEE 1394 gateway for fault-tolerant communication In one embodiment, a node comprises a plurality of IEEE 1394 subnet interfaces for communicating over a plurality of IEEE 1394 buses. Each of the plurality of IEEE 1394 subnet interfaces comprises a respective IEEE 1394 physical layer and IEEE 1394 link layer for co... | 12/13/2011 |
| 8064336 | Method and apparatus for reliable communications in a packet network A system and method are disclosed for reliable communications in a packet network. A system that incorporates teachings of the present disclosure may include, for example, a network management system (NMS) having a controller programmed to establish between first an... | 11/22/2011 |
| 8064335 | Communication monitoring method, communication monitoring system, management system, and external device A management system for use in a communication monitoring system, exchanging communication check information between external devices, and monitoring communication in the network, the management system including an information manager for managing topology informati... | 11/22/2011 |
| 8040793 | Method, system and device for processing failure A method, a system, and a device for processing failure is provided; the method is applicable to a label switched path (LSP) including a first node, a second node, and at least one third node. The first node and the second node are adjacent nodes suffering communica... | 10/18/2011 |
| 8040792 | Techniques for determining local repair connections Techniques for configuring a local repair connection for a protected connection including determining a path for the local repair connection. The path traversed by a local repair connection starts at a node in the path associated with the protected connection and en... | 10/18/2011 |
| 8036106 | Distributed control packet transmission Packet switch operating methods and packet switches, using first processing circuitry of the packet switch, configure different second processing circuitry of the packet switch to periodically transmit control packets to a destination device via a port of the packet... | 10/11/2011 |
| 8000229 | All-to-all interconnect fabric generated monotonically increasing identifier Systems and apparatus are described for all-to-all interconnect fabric generated monotonically increasing transaction identifiers. A method includes usage of an all-to-all interconnect fabric generated monotonically increasing transaction identifier to coordinate ti... | 08/16/2011 |
| 7995466 | Failover/failback trigger using SIP messages in a SIP survivable configuration Provided are methods, devices, and systems for maintaining a SIP survivable network. The present invention may utilize messages, such as SIP NOTIFY messages, to trigger various network components to failover and failback based on the determined status of the SIP net... | 08/09/2011 |
| 7995464 | Method and apparatus for measuring quality of service levels A method and apparatus for measuring quality of service levels for a plurality of alternative routes in a packet network is described. In one example, a plurality of alternative routes associated with at least one termination point is determined. The quality of serv... | 08/09/2011 |
| 7995465 | Intelligent load balancing and failover of network traffic A hash engine in a network device driver maintains data on the utilization and error rate for each network interface card (“NIC”) within a local computing device. From this data, the hash engine intelligently selects transmit NICs and receive NICs based on vario... | 08/09/2011 |
| 7983151 | Communication systems An uplink transmission method for use in a multi-hop communication system, the system comprising a mobile station (MS), a base station (BS) and one or more relay stations (RS), and the system providing two or more different communication paths extending between the ... | 07/19/2011 |
| 7983152 | Dual-homing layer 2 switch One embodiment relates to a method of providing dual-homing in a Layer 2 switch. A determination is made as to whether a link is available to an upstream network on for a currently active port. If the link is unavailable, then the Layer 2 switch a) performs a switch... | 07/19/2011 |
| 7983150 | VPLS failure protection in ring networks A method for communication over a bi-directional ring network includes provisioning a virtual private local area network service (VPLS) over the bi-directional ring network. The VPLS includes connection termination points provisioned respectively on a plurality of t... | 07/19/2011 |
| 7978597 | Communication management system, communication management method, and communication management device A failure is detected in at least one of an active system including an active packet transfer board, an active system packet processing board, and an active system switch board. At least function setting information for executing functions of the active system packe... | 07/12/2011 |
| 7969869 | Method and apparatus for failure resilient forwarding of data over a computer network In one embodiment, a method and an apparatus for failure-resilient forwarding of data over a computer network include introducing a marker into the data stream, e.g., at the sending node, and allowing, in turn, forwarding nodes and/or receivers to efficiently track ... | 06/28/2011 |
| 7965625 | Communication device and logical link abnormality detection method The present invention provides a communication device capable of providing a highly reliable service by detecting communication abnormality at a high speed. The communication device comprises a link configuring unit configuring a plurality of logical links between a... | 06/21/2011 |
| 7961600 | Loop prevention technique for MPLS using service labels In one embodiment, a loss of communication is detected between a first edge device of a computer network and a neighboring routing domain. A data packet is received at the first edge device, where the received data packet contains a destination address that is reach... | 06/14/2011 |
| 7961599 | Pseudowire tunnel redundancy The invention is directed to providing pseudowire tunnel redundancy for VPLS and VLL services in the form of automatic protection switching of the service from a primary pseudowire tunnel to a backup pseudowire tunnel upon detection of a failure affecting the primar... | 06/14/2011 |
| 7961598 | Rapid response method for the failure of links between different routing domains The invention relates to a rapid response method for the failure of a link between two routing domains in a packet-oriented network. Once the failure of a link has been identified, substitute routes are provided for the interrupted routes by the local selection of a... | 06/14/2011 |
| 7961597 | Method and device for automatically configuring a virtual switching system The invention relates to a plurality of common switching systems which are interconnected in order to form a virtual switching system. The number of the internal switching system is entered into the numbering of the port of the virtual switching system thus making a... | 06/14/2011 |
| 7944813 | Method and system for establishing a connection between network elements A method and system for establishing or handling a connection between a first and a second network element connected to different networks such as GPRS/UMTS and IP-based networks. The connection is established by at least one third network element such as a SGSN or ... | 05/17/2011 |
| 7940648 | Hierarchical protection switching framework A hierarchical protection switching framework uses detectors and protectors. A protector registers with a detector to receive notifications. A detector identifies a condition and the interested protector, and notifies the interested protector. The protector in respo... | 05/10/2011 |
| 7940649 | Techniques for graceful restart in a multi-process operating system A method and apparatus is disclosed for graceful restart in a multi-process operating system. A transport protocol process, which is capable of restarting independently from the operating system, is executed in a network element. The network element executes a Borde... | 05/10/2011 |
| 7929420 | Method and apparatus for learning VRRP backup routers A method and apparatus for learning the identity of VRRP backup router(s) for a VRRP master router enables the identity of VRRP backup routers to be determined quickly on demand, or enables a table of VRRP master and backup routers to be established over time. A VRR... | 04/19/2011 |
| 7929419 | Methods, systems, and computer program products for inhibiting message traffic to an unavailable terminating SIP server Methods, systems, and computer program products for inhibiting message traffic to an unavailable terminating SIP server are disclosed. According to one method, at least one list of SIP servers accessible by a call session control function (CSCF) is maintained at an ... | 04/19/2011 |
| 7924705 | Method and system for span-based connection aggregation The present invention provides a method and system for the restoration of an optical mesh network subsequent to the simultaneous failing of a large number of network connections due to a transmission failure. The system and method increase the restoration speed of a... | 04/12/2011 |
